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Vitamin A has an important role to play in vision, bone growth, reproduction, cell division, and cell differentiation. With the focus on Vitamin A and Carotenoids, this book includes the latest research in these areas and starts with an overview putting the compounds in context with other vitamins, supplementation and discussing the importance of beta-carotene. Details of the chemistry, structure and biochemistry of the compounds begins with nomenclature followed by information on encapsulation, thermal degradation and occurrence. Developments in analytical and bioanalytical techniques concerning these compounds in plant, milk and human tissue systems are covered in detail. Finally, the book covers the extensive functions and effects of Vitamin A on eg developmental growth, immune function, cancer risk, the brain and lungs as well as vision. Delivering high quality information, this book will be of benefit to anyone researching this area of health and nutritional science. It will bridge scientific disciplines so that the information is more meaningful and applicable to health in general. Part of a series of books, it is specifically designed for chemists, analytical scientists, forensic scientists, food scientists, dieticians and health care workers, nutritionists, toxicologists and research academics. Due to its interdisciplinary nature it could also be suitable for lecturers and teachers in food and nutritional sciences and as a college or university library reference guide.

Cis-Trans Isomeric Carotenoids, Vitamins A, and Arylpolyenes focuses on the reactions, characteristics, and properties of cis-trans isomeric carotenoids, vitamins A, and arylpolyenes. The publication first takes a look at carotenoids, number, types, and properties of cis carotenoids, and cis-trans isomerism and UV spectra. Discussions focus on simple theoretical interpretation of spectral phenomena, spectra at extremely low temperatures, relative stabilities, melting points, rotatory power, and historical remarks on the stereoisomerism of polyenes. The text then ponders on the preparation of cis carotenoids by direct rearrangement of the all-trans form and total synthesis and naturally occurring cis and polycis carotenoids. The manuscript examines some general remarks on configurational assignments, configurational assignments in certain stereoisomeric sets, and lower-molecular weight carotenoid-carboxylic acids. Topics include bixin set, stereoisomeric sets with two aromatic terminal groups, stereoisomeric sets with one hydroaromatic and one aliphatic terminal group, configuration and infrared spectrum, and stereoisomeric types. The manuscript also elaborates on vitamins A and retinenes, cumulenes with aromatic terminal groups, and polyene azines. The publication is a dependable source of information for researchers interested in cis-trans isomeric carotenoids, vitamins A, and arylpolyenes.

Synthetic Analgesics, Part I: Diphenylpropylamines deals with the methods of synthesis, the physical and chemical properties, and the''analgesic''activity of diphenylpropylamines. Topics covered include the''analgesic''activity of methadone, morphine, pethidine, and codeine in animals; diamines and derivatives; R875 and related basic tertiary amides; esters derived from amino acids and secondary and tertiary alcohols; and ketimines, acyl ketimines, and ketones. This book is comprised of 21 chapters and begins with a brief background on the first chemical and pharmacological experiments on diphenylpropylamines, followed by a discussion on''analgesic''activity in humans and animals. The''analgesic''activity of methadone, morphine, pethidine, and codeine in animals is considered. The following chapters explore a variety of compounds such as 3:3-diphenylpropylamines, tertiary alcohols, secondary alcohols, primary alcohols, nitriles, diamines and derivatives, primary and secondary amides, acids and acid chlorides, and aldehydes. Sulfones, dissociation constants, and configurational studies are also described. This monograph will be a useful resource for researchers and practitioners in the fields of organic chemistry, analytical chemistry, and pharmacology.