Glycidol is used as a chemical intermediate in the pharmaceutical industry, as a stabilizer in the manufacture of vinyl polymers, and as an intermediate in the synthesis of glycerol, Glycidol ethers, and amines. Glycidol was nominated for carcinogenecity study by the Environmental Protection Agency (EPA). Glycidol was selected for study in the haploinsufficient p16Ink4a/p19Arf mouse because it was found to be carcinogenic in rats and mice in conventional 2-year rodent studies (NTP, 1990), but was negative in a study in p53+/- mice (Tennant et al., 1999). In this study, male and female mice received Glycidol (greater than 95% pure) by gavage for 40 weeks. Genetic toxicology studies were conducted in mouse peripheral blood erythrocytes. Illustrations.

This book discusses the current research on monochloropropanediol (MCPD) and glycidyl esters in edible oils. These potentially harmful contaminants are formed during the industrial processing of food oils during deodorization. The mechanisms of formation for these contaminants, as well as research identifying possible precursor molecules are reviewed. Strategies which have been used successfully to decrease the concentrations of these contaminants in edible oils are discussed, including the removal of precursor molecules before processing, modifications of deodorization protocol, and approaches for the removal of these contaminants after the completion of processing. Analytical strategies for accurate detection and quantitation of MCPD and glycidyl esters are covered, along with current information on their toxicological properties. This book serves as a single point of reference for the significant research related to these contaminants. Details the mechanisms of formation for these contaminants and research identifying possible precursor molecules Presents successful strategies to decrease the concentrations of these contaminants in edible oils Includes the analytical strategies for accurate detection and quantitation of the contaminants along with their toxicological properties.

Encyclopedia of Food Chemistry, Three Volume Set is the ideal primer for food scientists, researchers, students and young professionals who want to acquaint themselves with food chemistry. Well-organized, clearly written, and abundantly referenced, the book provides a foundation for readers to understand the principles, concepts, and techniques used in food chemistry applications. Articles are written by international experts and cover a wide range of topics, including food chemistry, food components and their interactions, properties (flavor, aroma, texture) the structure of food, functional foods, processing, storage, nanoparticles for food use, antioxidants, the Maillard and Strecker reactions, process derived contaminants, and the detection of economically-motivated food adulteration. The encyclopedia will provide readers with an introduction to specific topics within the wider context of food chemistry, as well as helping them identify the links between the various sub-topics. Offers readers a comprehensive understanding of food chemistry and the various connections between the sub-topics Provides an authoritative introduction for non-specialists and readers from undergraduate levels and upwards Meticulously organized, with articles structured logically based on the various elements of food chemistry

Lipid-based nutrient supplements (LNS) and ready-to-use therapeutic food (RUTF) are used to prevent and treat malnutrition in children. [Author] They are often produced in regions experiencing food insecurity and include edible oils obtained from oleaginous seeds or fruits that must be refined to remove undesirable substances and ensure adequate shelf-life for the product. [Author] However, the formation of the heat-induced contaminants 3-monochloropropane-1,2-diol (3-MCPD) fatty acid esters and glycidyl fatty acid esters (GEs) may occur during the refining process of edible oils. [Author] 3-MCPD and its fatty acid esters are present in many other foodstuffs and most of the total lifetime exposure is attributed to foods other than LNS/RUTF. [Author] While the only Codex standard developed for 3-MCPD is for liquid condiments containing acid hydrolyzed vegetable proteins, no Codex standards are available for GEs. [Author] This publication provides an overview of risk assessments for 3-MCPD and GEs previously performed by the Joint FAO/WHO Expert Committee on Food Additives (JECFA), European Food Safety Authority (EFSA) and other authorities, based on chronic exposure. [Author] The use of LNS/RUTF is intended to be of finite duration and confined to a specific life stage. [Author] The aim of this report was to provide an assessment to characterize the risk of less-than-lifetime exposure to 3-MCPD (including 3-MCPD fatty acid esters) and GEs via LNS/RUTF in the context of limited food availability. [Author] The thresholds identified herein for concentrations of 3-MCPD and glycidol equivalents in LNS/RUTF products are considered to represent a level of exposure that is of low concern for human health. [Author]

Learn to implement effective control measures for mutagenic impurities in pharmaceutical development In Mutagenic Impurities: Strategies for Identification and Control, distinguished chemist Andrew Teasdale delivers a thorough examination of mutagenic impurities and their impact on the pharmaceutical industry. The book incorporates the adoption of the ICH M7 guideline and focuses on mutagenic impurities from both a toxicological and analytical perspective. The editor has created a primary reference for any professional or student studying or working with mutagenic impurities and offers readers a definitive narrative of applicable guidelines and practical, tested solutions. It demonstrates the development of effective control measures, including chapters on the purge tool for risk assessment. The book incorporates a discussion of N-Nitrosamines which was arguably the largest mutagenic impurity issue ever faced by the pharmaceutical industry, resulting in the recall of Zantac and similar drugs resulting from N-Nitrosamine contamination. Readers will also benefit from the inclusion of: A thorough introduction to the development of regulatory guidelines for mutagenic and genotoxic impurities, including a historical perspective on the development of the EMEA guidelines and the ICH M7 guideline An exploration of in silico assessment of mutagenicity, including use of structure activity relationship evaluation as a tool in the evaluation of the genotoxic potential of impurities A discussion of a toxicological perspective on mutagenic impurities, including the assessment of mutagenicity and examining the mutagenic and carcinogenic potential of common synthetic reagents Perfect for chemists, analysts, and regulatory professionals, Mutagenic Impurities: Strategies for Identification and Control will also earn a place in the libraries of toxicologists and clinical safety scientists seeking a one-stop reference on the subject of mutagenic impurity identification and control.