residual moisture raises a handful of sensible questions. This page answers them in order, starting with the fundamentals and moving to applications.
This page was last updated on 2025-12-18 and is reviewed periodically as new material appears.
Quality control for lyophilized materials includes visual inspection of the cake, measurement of residual moisture, and tests for reconstitution time. An acceptable cake is typically uniform and may be slightly porous; shrinkage, meltback, or cracks can indicate process deviations. Analytical methods such as Karl Fischer titration, thermogravimetric analysis, and near-infrared spectroscopy quantify water content. Reconstitution time is recorded because a very slow or incomplete dissolution can signal collapse or aggregation. Stability studies compare samples stored under defined temperature and humidity conditions over months or years.
Regulatory expectations for lyophilized products focus on consistent manufacture and documented stability. Batches are often monitored for moisture, appearance, potency, and sterility where applicable. Process parameters such as shelf temperature, chamber pressure, and drying time are recorded and controlled within validated ranges. Open questions remain about how best to predict long-term stability from short accelerated studies, especially for complex biologics. Variations in freezing rate and ice crystal size can produce differences that are not always visible but may affect performance.
After drying, a lyophilized product is usually sealed under vacuum or an inert gas to limit moisture uptake. Residual water content is measured because small changes can alter chemical stability and cake appearance. Storage temperature depends on the material; many biological products are kept at 2–8 °C, while some require −20 °C or colder. Exposure to ambient humidity during handling can cause the porous solid to absorb water and collapse. Container closures and stoppers are therefore selected for low moisture transmission and compatibility.
Handling and storage practices aim to keep the cake intact and dry. Vials are typically stored upright at controlled temperatures, often between 2 °C and 8 °C or at -20 °C for longer-term use. Reconstitution involves adding a suitable diluent and gently mixing until the solid dissolves. Shaking or rapid injection of diluent can create foam or damage sensitive molecules. Once reconstituted, the product may require refrigeration and use within a defined period.
Residual moisture is a key quality attribute for lyophilized products. Water that remains after secondary drying can affect chemical stability, cake structure, and shelf life. Karl Fischer titration is a common method for measuring water content in the dried solid. The target range varies by product, but many biologics are dried to between 0.5% and 3% water by weight. Acceptable limits are set during development and confirmed by stability studies.
Stability studies examine how temperature, humidity, and time influence a lyophilized product. Accelerated conditions provide early information about degradation pathways, while long-term studies support shelf-life claims. The glass transition temperature of the dried formulation can indicate its physical stability, and storage above this temperature may increase molecular mobility and lead to collapse or aggregation. Container closure integrity also matters because moisture or oxygen ingress can degrade the product, so vial stoppers and seals are part of the quality system.
| Property | Value | Notes |
|---|---|---|
| Typical storage temperature | 2–8 °C | Common for biological materials; some require −20 °C or colder |
| Residual moisture specification | 0.5–3.0% w/w | Product-specific; measured after drying |
| Common moisture method | Karl Fischer titration | Coulometric or volumetric; detects water content |
| Cake appearance | Uniform and porous | Collapse, meltback, or cracks are deviations |
| Reconstitution time | Seconds to several minutes | Depends on formulation, cake structure, and diluent |
Quality control for freeze-dried lots combines visual inspection with instrumental tests. Cake appearance, color, and shrinkage are recorded against a reference, while residual moisture is measured by Karl Fischer titration or loss on drying. Thermal analysis can reveal phase transitions and crystallization events, and X-ray diffraction distinguishes amorphous from crystalline solids. Microbiological tests and container closure integrity checks are also routine for sterile products. Analytical methods must be validated for the matrix, because excipients and low moisture can affect accuracy. Open questions include how best to predict long-term stability from short-term data.
Lyophilized solids are often hygroscopic, so handling occurs in controlled low-humidity areas or glove boxes when the material is exposed. Vials remain sealed with elastomeric stoppers and aluminum crimps until use, because airborne moisture can raise residual water and shorten shelf life. The porous cake is fragile and may crack, shrink, or powder during transport. Personnel typically avoid repeated warming and cooling of sealed units, which can draw moisture through closures. These practices aim to preserve the low water content achieved during drying.
Stability of a lyophilized solid depends on water content, temperature, and the physical state of the formulation. Amorphous products may slowly absorb moisture and drop below their glass transition temperature, causing collapse or crystallization. Some proteins and peptides can aggregate even in a dry state, especially when exposed to heat or moisture. Accelerated stability studies at elevated temperature and humidity help estimate shelf life, but real-time data remain the basis for expiration dating.
After drying, a lyophilized product is usually sealed under vacuum or an inert gas to limit moisture and oxygen exposure. The container closure system matters because stoppers and seals can allow moisture ingress over time. Storage conditions are selected from stability studies that track potency, cake appearance, and reconstitution behavior. Many freeze-dried materials are kept at controlled room temperature, while some require refrigeration or protection from light.
Quality control for freeze-dried forms includes visual inspection, water content measurement, and reconstitution time. A satisfactory cake is typically uniform, porous, and intact, although minor shrinkage or cracking may be acceptable if specifications allow. Karl Fischer titration, thermal gravimetric analysis, and near-infrared spectroscopy are used to measure water content. Reconstitution is assessed by adding a specified diluent and recording the time and ease of dissolution. Microbiological and particulate tests are added when the product is sterile or intended for injection.
Quality control for lyophilized products includes appearance, cake structure, reconstitution time, pH, residual moisture, and potency. Residual moisture is a key attribute because excess water can reduce stability, while excessively low moisture may cause structural changes or aggregation in some systems. Stability studies compare real-time and accelerated conditions to estimate shelf life. Analytical methods must be validated for the specific matrix, container, and moisture range. Sterility and container integrity are also monitored for sterile products.
Handling practices aim to prevent moisture ingress and mechanical damage. Vials should remain stoppered and crimped until use, and reconstitution should follow the labeled diluent and volume. Shipping may involve temperature-controlled containers and desiccants, but direct contact between desiccant and product is avoided. Regulatory guidance expects documented storage conditions, excursion assessments, and stability commitments. Open questions remain about how best to predict long-term stability from short accelerated studies for every formulation class.
After lyophilization, the product is usually a porous cake or powder with a large internal surface area. This structure can absorb moisture quickly if exposed to humid air, so vials are sealed under vacuum or an inert gas. Moisture uptake may lower the glass transition temperature of the dried matrix and accelerate chemical or physical degradation. Storage conditions therefore depend on the formulation, container, and intended shelf life. Some products remain stable at room temperature, while others require refrigeration or freezing.
== Background == Robert Karriem was born Robert Harris on August 3, 1888, to parents Alec and Lulu in Mississippi. On July 3, 1929, he moved to Detroit, Michigan. He had a wife, Bertha. James Smith was born on December 25, 1892, in Atlanta. In 1930, a man named W. D. Fard came to Detroit, ultimately founding a group called the Allah Temple of Islam. Among Fard's practices was to give new, Islamic names to members, replacing their inherited 'slave names'. Harris was given the new surname "Karriem".
== Epidemiology == Kwashiorkor is rare in high-income countries. It is mostly observed in low-income and middle-income nations and regions such as Southeast Asia, Central America, Congo, Ethiopia, Puerto Rico, Jamaica, South Africa, and Uganda, where poverty is prominent. Occurrences of severe malnutrition also tend to trend higher under conditions of food insecurity, higher prevalence of infectious diseases, lack of access to appropriate care, and poor living situations with inadequate sanitation. Communities experiencing famine are affected the most, especially during the rainy season. Prevalence varies, but it affects children of either sex commonly under five years old. "Globally, kwashiorkor indirected accounted for 53% of deaths among children under five between 2000 and 2003 when associated with other common childhood diseases like acute respiratory infections, malaria, measles, HIV/AIDS and other causes of perinatal deaths." When compared to marasmus in developing countries, kwashiorkor typically has a lower prevalence, "0.2%-1.6% for kwashiorkor and 1.2%-6.8% for marasmus." Factors such as "diet, geographical locations, climate, and aflatoxin exposure" have been invoked as potential causes for observed differences in the prevalence of kwashiorkor and marasmus. In general, in areas where Severe Acute Malnutrition (SAM) is prevalent, marasmus is more often the dominant SAM condition. However, in certain areas, kwashiorkor may be more common than marasmus.
TGFK-09SD, or TGFK09SD, is a serotonin 5-HT1A receptor agonist which is or was under development for the treatment of female sexual dysfunction but was never marketed. It is taken orally. The drug was developed by Fabre-Kramer Pharmaceuticals. As of January 2016, it is in phase 2 clinical trials. There have been no further updates on the development of the drug since then. The chemical structure of TGFK-09SD does not yet appear to have been disclosed.
Submuscular: the breast implant is emplaced beneath the pectoralis major muscle, without releasing the inferior origin of the muscle proper. Total muscular coverage of the implant can be achieved by releasing the lateral muscles of the chest wall—either the serratus muscle or the pectoralis minor muscle, or both—and suturing it, or them, to the pectoralis major muscle. In breast reconstruction surgery, the submuscular implantation approach effects maximal coverage of the breast implants. This technique is rarely used in cosmetic surgery due to high risk of animation deformities. Prepectoral or subcutaneous: in a breast reconstruction following a skin-sparing or skin- and nipple-sparing mastectomy, the implant is placed above the pectoralis major muscle without dissecting it so that the implant fills directly the volume of the mammary gland that has been removed. To avoid the issue of capsular contracture, the implant is often covered frontally or completely with a mesh in biomaterial, either biological or synthetic.
The East Central Conference was founded in 1970 by eight medium-sized high schools in east central Wisconsin. Six of the eight schools were displaced by the dissolution of their previous conferences: three from the Little Nine Conference (Hortonville, Omro and Winneconne), two from the Little Ten Conference (Berlin and Ripon) and New London of the Mid-Eastern Conference. Former Central Wisconsin Conference members Waupaca and Weyauwega rounded out the original eight. In 1973, Weyauwega left the East Central Conference to rejoin the CWC, and Little Chute joined from the CWC as their replacement the following year. In 1979, New London exited for membership in the Bay Conference with Wautoma moving over from the CWC to maintain an eight-member conference. Aside from Waupun replacing Wautoma as a football-only member in 1995, the all-sport membership roster would remain intact for the next twenty years. In 1999, Hortonville, Little Chute and Waupaca became charter members of the Valley 8 Conference. Laconia and Markesan joined the ECC from the neighboring Flyway Conference to take the vacated members' place. For football, the two new members stayed in the Flyway Conference, with Mayville and St. Mary's Springs in Fond du Lac joining as football-only members. Two years later, the seven schools of the East Central Conference merged with the nine members of the Flyway Conference to form the East Central Flyway Conference.
Sources: en.wikipedia.org
In December 2015, a norovirus outbreak at a Chipotle restaurant near Boston College sickened approximately 140 people, many of them students. The Boston Public Health Commission traced the outbreak to a sick employee who had been allowed to work. In response to the 2015 outbreaks, Chipotle closed all locations on February 8, 2016, for an all-staff food safety meeting and hired a new head of food safety who instituted enhanced protocols including more frequent handwashing, produce sanitation procedures, and Pascalization to pre-treat ingredients.
==== Metabolism ==== 2C-B appears to undergo substantial first-pass metabolism. It has been shown to be metabolized by liver hepatocytes, resulting in deamination and demethylation that produces several products. Oxidative deamination results in the 2-(4-bromo-2,5-dimethoxyphenyl)ethanol (BDMPE) and 4-bromo-2,5-dimethoxyphenylacetic acid (BDMPAA) metabolites. Additionally, 4-bromo-2,5-dimethoxybenzoic acid (BDMBA) can be produced by oxidative deamination. Further metabolism of BDMPE and BDMPAA may occur by demethylation. Alternatively, the later metabolites can be generated by demethylation of 2C-B followed by oxidative deamination. Deamination of 2C-B is mediated by the monoamine oxidase (MAO) enzymes MAO-A and MAO-B. There is species differentiation in the metabolism of 2C-B. Mice hepatocytes produce 4-bromo-2,5-dimethoxyphenol (BDMP), a previously unknown metabolite. Meanwhile, human, monkey, and rabbit hepatocytes produce 2-(4-bromo-2-hydroxy-5-methoxyphenyl)-ethanol (B-2-HMPE), but dog, rat, and mouse hepatocytes do not. 2C-B's metabolites BDMPAA and 4-bromo-2-hydroxy-5-methoxyphenylacetic acid (B-2-HMPAA) in humans occur at peak concentrations 280-fold and 17-fold higher than those of 2C-B with oral administration of 2C-B, respectively. Another known metabolite of 2C-B is 2-OH-2C-B (2-DM-2C-B; B-2-HMPEA). This compound is active and has similarly potency as a serotonin 5-HT2A receptor agonist as 2C-B itself in vitro.
Radium is a chemical element; it has symbol Ra and atomic number 88. It is the sixth element in group 2 of the periodic table, also known as the alkaline earth metals. Pure radium is silvery-white, but it readily reacts with nitrogen (rather than oxygen) upon exposure to air, forming a black surface layer of radium nitride (Ra3N2). All isotopes of radium are radioactive, the most stable isotope being radium-226 with a half-life of 1,600 years. When radium decays, it emits ionizing radiation as a by-product, which can excite fluorescent chemicals and cause radioluminescence. For this property, it was widely used in self-luminous paints following its discovery. Of the radioactive elements that occur in quantity, radium is considered particularly toxic, and it is carcinogenic due to the radioactivity of both it and its immediate decay product radon as well as its tendency to accumulate in the bones. Radium, in the form of radium chloride, was discovered by Marie and Pierre Curie in 1898 from ore mined at Jáchymov. They extracted the radium compound from uraninite and published the discovery at the French Academy of Sciences five days later. Radium was isolated in its metallic state by Marie Curie and André-Louis Debierne through the electrolysis of radium chloride in 1910, and soon afterwards the metal started being produced on larger scales in Austria, the United States, and Belgium.
At higher doses, it can induce psychosis, rhabdomyolysis, and cerebral hemorrhage. Methamphetamine is known to have a high potential for abuse and addiction. Recreational use of methamphetamine may result in psychosis or lead to post-acute-withdrawal syndrome, a withdrawal syndrome that can persist for months beyond the typical withdrawal period. Unlike amphetamine and cocaine, methamphetamine is neurotoxic to humans, damaging both dopamine and serotonin neurons in the central nervous system (CNS). Unlike the long-term use of amphetamine in prescription doses, which may improve certain brain regions in individuals with ADHD, there is evidence that methamphetamine causes brain damage from long-term use in humans; this damage includes adverse changes in brain structure and function, such as reductions in gray matter volume in several brain regions and adverse changes in markers of metabolic integrity.
Anshel Pfeffer(Hebrew: אנשיל פפר, born 22 June 1973); British -Israeli journalist; a senior correspondent and columnist for Haaretz, covering military, Jewish and international affairs, and Israel correspondent for The Economist.; has also written for The Guardian, The New York Times, The Washington Post and The Times; received the B'nai B'rith award for "Recognizing Excellence in Diaspora Reportage" Melanie Phillips,(born 4 June 1951) Neoconservative, and right wing hawkish pro Zionist journalist; began her career writing for The Guardian and New Statesman; during the 1990s, she came to identify with ideas more associated with the right and currently writes for The Times, The Jerusalem Post, and The Jewish Chronicle, covering political and social issues from a social conservative perspective.Irving Kristol, defines her as a liberal who has "been mugged by reality";was panellist on BBC Radio 4 programme The Moral Maze and BBC One's Question Time; was awarded the Orwell Prize for Journalism Hella Pick CBE (24 April 1929 – 4 April 2024); in 1960, was UN correspondent of The Guardian newspaper, tutored by chief US correspondent Alistair Cooke; awarded CBE in 2000; was Arts & Culture Programme Director at Institute for Strategic Dialogue, an independent think-tank based in London; author ofSimon Wiesenthal: A Life in Search of Justice, Weidenfeld & Nicolson, 1996; Guilty Victim – Austria from the Holocaust to Haider, I B Tauris & Co Ltd, 2000 and Invisible Walls, Weidenfeld & Nicolson, 2021 Gabriel Pogrund (born 1993 or 1994) is a journalist who has worked for the New Statesman, Shortlist, Ha'aretz and Jewish News and is currently Whitehall editor at The Sunday Times; won 2017 Young Journalist of the Year at the British Press Awards and in 2018 was a Stern Fellow at The Washington Post. In 2020 Pogrund and Patrick Maguire published Left Out: The Inside Story of Labour Under Corbyn, which in part, addresses charges of, and assumptions about 'the new anti-Semitism' in the Labour Party. Eve Pollard Evelyn, Lady Lloyd, (née Pollard, formerly Winkleman, born 25 December 1943); has been the editor of several tabloid newspapers; was fashion editor at Honey magazine; also worked for Daily Mirror; was launch editor-in-chief of Elle magazine in the US and edited Sunday magazine for the News of the World and You magazine for the Mail on Sunday; also worked in television as features editor of TV-am (1982–1983) and devised Frocks on the Box for ITV contractor TVS.; often appeared on radio and TV; was regular participant in Through the Keyhole; was a guest panellist on the talk show Loose Women; in 2016, was appointed the first Chair of Reporters without Borders in the UK. In June 2019, was awarded the prestigious Journalist Laureate prize by the London Press Club. She has been a member, appointed in 1999, of the Competition Commission's Newspaper Takeover Panel. Pollard was appointed Officer of the Order of the British Empire (OBE) in the 2008 Birthday Honours List for services to journalism. Stephen Pollard (born 18 December 1964); was editor of The Jewish Chronicle; was researcher for Labour MP Peter Shore; worked for the Fabian Society; joined the Social Market Foundation; Senior Fellow at Civitas; was president for the Centre for the New Europe and in 2007, first chair of the European Institute for the Study of Contemporary Antisemitism;signatory founder of the Henry Jackson Society, a neoconservative British foreign policy think tank. Karen Pollock journalist, writer, activist chief executive of Holocaust Educational Trust (HET); was Director of the All-Party Parliamentary Group against Antisemitism; later joined Holocaust Educational Trust (HET); is involved with the anti-fascist organisation Searchlight and London Jewish Forum, as well as the Holocaust Memorial Day Trust. She has written for The Guardian, Jewish News, The Jewish Chronicle, and The Huffington Post; gave TED talk entitled 'The search for humanity in the Holocaust' for TEDxDurhamUniversity 2016. She represented British Jews at United Nations World Conference against Racism. She is a vice-president of the Jewish Leadership Council. She was appointed Member of the Order of the British Empire (MBE) in the 2012 New Year Honours for services to education, specifically about the Holocaust, and Commander of the Order of the British Empire (CBE) in the 2020 Birthday Honours for services to Holocaust education. Marjorie Proops, agony aunt Richard Quest(born 9 March 1962) journalist and barrister working as news anchor for CNN International; also an editor-at-large of CNN Business; anchors Quest Means Business, the five-times-weekly business program and fronts the CNN shows Business Traveller, The Express and Quest's World of Wonder; Quest wrote the book, The Vanishing of Flight MH370: The True Story of the Hunt for the Missing Malaysian Plane, published by Penguin Random House on 8 March 2016. Kimberly Quinn (formerly Fortier; née Solomon; born 1961); journalist, commentator and magazine publisher and writer; publisher of British conservative news magazine The Spectator; has written for The Wall Street Journal, Vogue and UK newspapers The Daily Telegraph, The Times, Evening Standard, and The Independent; was the Communications and marketing director for Condé Nast Publications in the UK. Gideon Rachman (born 1963) is a British journalist of Jewish South African ancestry; adherent of Neoconservatism and right wing hawkish pro Zionism; was chief foreign affairs commentator of the Financial Times in July 2006. In 2016, won the Orwell Prize for political journalism and was awarded the Commentator Award at the European Press Prize awards; also worked with BBC World Service in 1984 and from 1988 to 1990, was a reporter for The Sunday Correspondent newspaper, Washington, D.C.; spent 15 years at The Economist newspaper. Barnaby Raine is an anti fascist, anti Zionist, pro-Palestinian author, journalist, intellectual and broadcaster, writing for New Internationalist, n+1, Salvage, Red Pepper, Novara Media, Jacobin, Counterfire and others. Claire Rayner, agony aunt Jay Rayner (born 14 September 1966) food critic for The Guardian, The Mail on Sunday, GQ, Esquire, Cosmopolitan, New Statesman and Granta; first novel, The Marble Kiss, published in 1994, shortlisted for Author's Club First Novel Award; second novel, Day of Atonement (1998) shortlisted for the Jewish Quarterly Prize for Fiction Hugo Rifkind(born 30 March 1977); columnist for The Times; presenter on Times Radio; regular guest on The News Quiz, on BBC Radio 4; contributes to GQ; son of Conservative Party politician Sir Malcolm Rifkind; Columnist of the Year in the 2011 Editorial Intelligence Comment Awards, and Media Commentator of the Year in the same awards in 2012; highly commended in the Best of Humour category at the Society of Editors' Press Awards; was Stonewall's Journalist of the Year; also named Best Grooming Journalist in the P&G Beauty Awards; In 2015, at the Comment Awards, he was named Arts, Culture and Entertainment Commentator of The Year. in 2017, he won both Best of Humour and Critic of the Year at the Society of Editors' Press Awards. Robert Rinder (born 31 May 1978), barrister, television personality and columnist for The Sun, Daily Mail, Evening Standard; host for TalkTV. In 2014, began hosting reality courtroom series Judge Rinder. In 2019, began hosting Channel 4 series The Rob Rinder Verdict. In 2022, Rinder became a regular host on ITV's Good Morning Britain. Nick Robinson (journalist), BBC broadcaster of German Jewish ancestry; was president of the Oxford University Conservative Association; president of the Conservative Party youth group; was deputy editor of Panorama; worked for ITV News as political editor; presented Westminster Live, Weekend Breakfast and Late Night Live on BBC Radio 5 Live, and Newsnight on BBC Two; covered general election for BBC Radio; co-hosted BBC Two's Icons: The Greatest Person of the 20th Century alongside Claudia Winkleman; hosted final debate between Boris Johnson and Jeremy Corbyn prior to 2019 general election; author of two books. Barney Ronay, chief sports writer for The Guardian, of Austrian Jewish descent; was educated at the University of Oxford; was included in list of most respected journalists working in Britain as published by the National Council for the Training of Journalists; nominated in the 'writer of the year' category at the 2018 Football Supporters Federation Awards. Jon Ronson, journalist, author, documentary filmmaker and radio presenter David Rose (journalist) (born 21 July 1959); author and investigative journalist; contributing editor with Vanity Fair; special investigations writer for The Mail on Sunday. His interests include human rights, miscarriages of justice, the death penalty, racism, the war on terror, politics, and climate change denial; author of six non-fiction books and a novel, Taking Morgan, a thriller set in Washington, Oxford, Tel Aviv and Gaza; named News Reporter of the Year in the Society of Editors British Press Awards for 2015; brother of Bernard Rose (director), filmmaker and screenwriter, considered pioneer of digital filmmaking. Phil Rosenberg (Jewish leader) (b. 1986) writes for Jewish Chronicle, Jewish News, Times of Israel, regularly appears on British television as social commentator; current President of the Board of Deputies of British Jews; served as a Labour councillor ; served as Director of the Faiths Forum for London managing relationships between various religious denominations; at University, was co-director of Muslim-Jewish dialogue group; ran Arab-Jewish dialogue group at Hebrew University in Jerusalem; works as consultant in government relations, media, faith, and diplomacy; Vice President at the World Jewish Congress, extending influence and involvement in global Jewish affairs; Vice President of the Jewish Leadership Council and a Trustee of the Holocaust Memorial Day Trust. Steve Rosenberg (born 5 April 1968); was part of CBS News crew covering first war in Chechnya; journalist for BBC News and has been the BBC's Moscow correspondent since 2003, except for stint as Berlin correspondent between 2006 and 2010; in 2022, was appointed BBC's Russia editor. Jonathan Rosenhead (born 21 September 1938), mathematician, operational researcher and Labour Party activist; author of a number of scholarly monographs and works of political analysis, including The Technology of Political Control, published by Penguin Books; op-ed journalist for The Guardian, New Scientist, Haaretz, Times Higher Education (THE), openDemocracy, and anti-Zionist website Mondoweiss; active in the British Society for Social Responsibility in Science over a 20-year period; is chairman of the British Committee for the Universities of Palestine (BRICUP) and information officer for Jewish Voice for Labour. Joshua Rozenberg KC (hon) (born 1950), British solicitor, legal affairs commentator, journalist; husband of Melanie Phillips, began career in journalism in 1975 at the BBC where he launched Law in Action on BBC Radio 4 in 1984. At BBC he worked as producer, reporter and legal correspondent; in 2000 left to join The Daily Telegraph as legal affairs editor, where he remained until 2008. After leaving the Telegraph wrote for Evening Standard ; writes for Law Society Gazette and The Critic; wrote for The Guardian's online law page from 2010 to 2016; returned to the BBC to present Law in Action, nearly 25 years after leaving the radio programme. He continues to be seen on BBC Television News as a legal affairs analyst. In January 2016, was made an honorary QC. Dan Sabbagh, Defence and Security Editor and Journalist for The Guardian Jonathan Sacerdoti, writer, campaigner, broadcaster, journalist and TV producer; covers stories relating to the UK and Europe, as well as terrorism and extremism stories, race relations, Middle East analysis and the British royal family. He is also a campaigner against antisemitism. James Schneider (born 17 June 1987) political organiser, journalist; co-founded the left-wing grassroots movement Momentum; was PR advisor to Jeremy Corbyn as Director of Strategic Communications; joined Think Africa Press in 2010, a role he held until he became the senior correspondent at New African; has written articles for publications such as The Independent, the New Statesman, Novara Media, and LabourList. L. J. K. Setright, motoring journalist Rachel Shabi; British journalist and author; contributing writer to The Guardian and the author of Not the Enemy, Israel's Jews from Arab Lands, which argued that Israel has discriminated against and culturally stripped its population of Jews from Arab and Muslim countries. The book received a National Jewish Book Award.Born in Israel to Iraqi Jewish parents in Ramat Gan, Shabi grew up in the UK. Jonathan Shalit (born 17 April 1962), journalist writing for Jewish Chronicle, The Sun, The Telegraph, Daily Express, Royal Television; talent manager and chairman of the InterTalent Rights Group; advises government on the UK's entertainment and creative industries; has guided and managed Charlotte Church, Mel B, Baroness Brady, Kelly Brook, Cher, Dame Joan Collins, Rebecca Ferguson, Katherine Jenkins, Sir Elton John, Vinnie Jones, Kelly Hoppen, Lorraine Kelly, Myleene Klass, N-Dubz, Arlene Phillips, Sir George Martin (the Beatles' producer), Pixie Lott, Sting, Tulisa, Gregg Wallace, Simon Cowell, and the winners of the ITV television talent show Britain's Got Talent. Shalit is chair of trustees and Chief Barker of Variety, the Children's Charity and a leading figure behind the return to London of the Variety Club Showbusiness Awards in 2022. He is also Chairman of the MOBO Charity Foundation (Music of Black Origin), a Trustee of both ChickenShed (Theatre Changing Lives), Patron of the Royal Television Society and co-chairman of the Classic BRITS, and a supporter of Norwood. He gave evidence to Leveson Inquiry into practices and ethics of British Press and was awarded the OBE in 2014 for services to entertainment industry. He also holds an honorary professorship, awarded in 2012, and honorary doctorate at Henley Business School of Reading University in recognition of his contribution to the arts, music and broadcasting. Miriam Shaviv (born 24 August 1976), columnist for "The Jewish Chronicle", "Haaretz", "The Times of Israel", "The Forward"; former literary editor of The Jerusalem Post; Features Editor of the "Times Higher Education" magazine. David Shukman (born 30 May 1958) journalist, and the former science editor of BBC News. Alexandra Shulman (born 13 November 1957); daughter of the critic Milton Shulman and the writer Drusilla Beyfus; previously worked at Arista Records; columnist for The Daily Telegraph and Daily Mail; first novel, Can We Still Be Friends?, published in 2012; was assessed as one of the 100 most powerful women in the United Kingdom by Woman's Hour on BBC Radio 4. Shulman was appointed Officer of the Order of the British Empire in the 2005 New Year Honours for services to the magazine industry. She was later promoted to Commander of the Order of the British Empire in the 2018 New Year Honours for services to fashion journalism; was formerly a trustee of the National Portrait Gallery. Brother Jason Shulman worked as graphic designer for The Sunday Telegraph and art director for Harpers & Queen and Harvey Nichols' magazines. Jake Wallis Simons; Editor of the Jewish Chronicle, writer for The Jerusalem Post, The Times of Israel, Haaretz, the Spectator, the Telegraph, a commentator for Sky News and a broadcaster for BBC Radio 4 and the World Service; was Associate Global Editor for the Daily Mail Online, and features writer for the Sunday Telegraph; also worked for the Times, The Guardian, CNN, POLITICO, Newsweek and La Repubblica; author of Israelophobia: The Newest Version of the Oldest Hatred and What To Do About It, published by Little, Brown and Company Samantha Simmonds (born 1972 or 1973); newsreader, television presenter and journalist; was a news anchor for Sky News until July 2016; returned to presenting for BBC News in March 2017; has also written for Jewish News, MSN (US), Daily Mail, Daily Mirror, The Sun, The Telegraph, Yahoo News Australia, Evening Standard, Times of Israel, Good Housekeeping (UK), HuffPost UK, Women's Health, Women's Health (UK), TV Times, Glamour (UK), Celebs Now, The Jewish Chronicle, Woman Magazine. Ruth Smeeth (née Anderson; born 29 June 1979);Labour Party politician;became director of public affairs and campaigns at the Britain Israel Communications and Research Centre (BICOM) in November 2005; writes for Index on Censorship, The Guardian, Daily Mail, The Independent, The Telegraph, Daily Express, The Sunday Times, The Times, Times of Israel, HuffPost UK, New Statesman;was a deputy director of anti-racist organisation, Hope not Hate. She has also been employed by the Community Security Trust and has worked for the Board of Deputies of British Jews and she is a member of Labour Friends of Israel.; became chief executive of Index on Censorship, an organisation which campaigns for freedom of speech. Jon Sopel, journalist; presents The Politics Show on BBC One; one of the lead presenters on News 24; voted 'Political Journalist of the Year' by Public Affairs Industry; shortlisted for 'National Presenter of the Year' at the Royal Television Society television journalism awards 2011/2012. Hedi Stadlen (6 January 1916 – 21 January 2004), British, of Austrian Jewish ancestry, journalist, pamphleteer, Communist, Musicologist, better known in Sri Lanka as Hedi Keuneman, was an Austrian Jewish philosopher, political activist, and musicologist. She was one of the handful of European Radicals in Sri Lanka. Matthew Stadlen is her grandson. Matthew Stadlen (b.1979); presenter on LBC, BBC Radio 5 Live; grandson of concert pianist Peter Stadlen and Hedi Stadlen, activist and musicologist; worked on Newsnight, The New Statesman, The Spectator and for Radio Times, and has worked as a consultant on ITV political programmes Bob Stanley (born Robert Andrew Shukman; 25 December 1964); musician, journalist, author, film producer; member of indie pop group Saint Etienne and music journalist for NME, Melody Maker, Mojo, The Guardian and The Times, as well as writing three books on music and football; also has a career as a DJ and as a producer of record labels, and has collaborated on a series of films about London. His second publication, Yeah! Yeah! Yeah!: The Story of Modern Pop, published by Faber & Faber; third publication Let's Do It: The Birth of Pop Music: A History, published by Pegasus. Mark Steyn (born 8 December 1959) is a British-Canadian author and a radio and television presenter. He has written several books. He is Anglican, but has Jewish maternal ancestry. Steyn's great-aunt was artist Stella Steyn. His mother's family was Belgian. Zoe Strimpel(born 8 July 1982); journalist, author, and commentator on gender and relationships. She is a columnist for The Sunday Telegraph where she writes a weekly column, commenting on gender, feminism, dating, relationships and identity politics;has also written on relations between men and women for Elle, the Sunday Times Style magazine, and HuffPost. She has also contributed to The Jewish Chronicle, The Spectator, and UnHerd. John Suchet, newsreader, journalist and brother of actor David Suchet, son of Jack Suchet, of Russian Jewish ancestry. He is the father of Russia Today RT journalist and presenter Rory Suchet. Helen Szamuely (25 June 1950 – 5 April 2017), historian and Eurosceptic, researcher for the Bruges Group (United Kingdom); daughter of Lenin Boys leader, Tibor Szamuely, wrote for the BBC Russian Service, History Today, Standpoint, New Statesman, Guardian, Salisbury Review, EUobserver and Social Affairs Unit; sister of George Szamuely. Christopher Tugendhat, Baron Tugendhat (born 23 February 1937),; Conservative Party politician, businessman, journalist and author; Member of Parliament until 1977, then Member of the European Commission, Lord Tugendhat entered the House of Lords in 1993; sits as Life Peer; was features editor and leader writer for the Financial Times; served as Vice-President of European Commission; author of Oil: The Biggest Business (1968); Multinationals (1971); Making Sense of Europe (1986); Options for British Foreign Policy in the 1990s (Nov 1988) Tom Tugendhat (born 27 June 1973) journalist; has written for Daily Mail, Financial Times, Jewish News, Jewish Chronicle; is also Minister of State for Security; member of Conservative Party, Member of Parliament; was chairman of the House of Commons Foreign Affairs Committee; has served as public relations consultant in the Middle East and was officer in the British Army reserves, the Territorial Army; Tugendhat served in the Iraq War and the Afghanistan War. Ed Vaizey (born June 1968) Baron Vaizey of Didcot; of Polish Jewish ancestry; commentator for Conservative Party in broadcast and news media; wrote for The Guardian, The Sunday Times, The Times and The Daily Telegraph; briefly wrote editorials for the Evening Standard; also a regular broadcaster, having appeared on Fi Glover's and Edwina Currie's shows on BBC Radio 5 Live, as regular panelist on Channel 5's The Wright Stuff, BBC Radio 4's Despatch Box and Westminster Hour, and occasionally presented People and Politics on the BBC World Service; in 2010, was named tenth in the 2010 Guardian Film Power 100 list. He played a cameo role as an Oxfordshire MP in the 2012 film Tortoise in Love. Adam Wagner; journalist and op-ed writer for The Jewish Chronicle, Times of Israel, Haaretz, The Guardian, Forbes, Daily Mirror, HuffPostUK, New Statesman; barrister, a member of the Equality and Human Rights Commission's panel of counsel. In 2019 he represented Campaign Against Antisemitism (CAA) in its case a formal investigation under section 20 of the Equality Act 2006 into whether Labour Party had "unlawfully discriminated against, harassed or victimised people because they are Jewish"; specialist in human rights and public law, including COVID-19 lockdown rules. George Weidenfeld, Baron Weidenfeld, (13 September 1919 – 20 January 2016) was a British publisher, philanthropist, and newspaper columnist. He was also a lifelong Zionist and renowned as a master networker. He was on good terms with popes, prime ministers and presidents and put his connections to good use for diplomatic and philanthropic ends; founder of Institute for Strategic Dialogue Victor Weisz, Vicky, cartoonist Claudia Winkleman (born 15 January 1972); television presenter, radio personality, film critic and journalist; has written for The Sunday Times, The Independent, London paper Metro and has written opinion-led lifestyle journalism for Cosmopolitan, Tatler and The Independent; has also written for BBC, Daily Mail, The Mirror UK, The Sun, The Telegraph, Daily Express, The Times, and Radio Times Jonathan Wittenberg (born 17 September 1957 in Glasgow, Scotland); Masorti rabbi, the Senior Rabbi of Masorti Judaism UK; leading writer and thinker on Judaism; has written for The Guardian, Daily Mirror, HuffPost, Times of Israel, Haaretz, and The Jewish Chronicle. He is Rabbi of the New North London Synagogue,; member of the Elijah Interfaith Institute Board of World Religious Leaders.; has featured on Thought for the Day on the BBC Radio Four Today programme. Martin Wolf (born 16 August 1946 in London) journalist; chief economics commentator at the Financial Times; widely regarded as one of the most influential economics journalists in the world. Lawrence H. Summers called him "the world's preeminent financial journalist." Mohamed A. El-Erian, former CEO of the PIMCO, said Wolf is "by far, the most influential economic columnist out there".Prospect magazine described him as "the Anglosphere's most influential finance journalist",; Kenneth Rogoff said, "He really is the premier financial and economics writer in the world". In 2012, he received the Ischia International Journalism Award.In 2019, Wolf received the Gerald Loeb Lifetime Achievement Award from the UCLA Anderson School of Management. Donald Zec (12 March 1919 – 6 September 2021); author of over ten books, newspaper journalist and biographer; worked for the Daily Mirror for 40 years.
Sources: en.wikipedia.org
Most are held in sealed containers at controlled temperatures, often 2–8 °C, while some require frozen storage. Protection from moisture and light helps preserve the dry matrix. Exact conditions are set by the manufacturer or study protocol.
Cake collapse suggests the material exceeded its collapse temperature during drying or later absorbed moisture. It can lead to slower reconstitution, uneven moisture, and reduced stability. Appearance alone may not reveal the cause, so process records and moisture tests are used together.
Some residual moisture is common and may be acceptable within a defined range. Very low moisture can alter stability or increase brittleness, while high moisture promotes hydrolysis and microbial risk. Specifications are based on product-specific stability data.
Residual moisture can influence chemical degradation, cake collapse, and long-term stability. Low moisture levels usually improve stability, but each product has an optimal range.