This book describes in detail the different physical and chemical operations in bleaching and purifying fats and oils. It covers the processing of more than 20 fats and oils, as well as the structure and manufacture of adsorbent earths and carbons. Separate chapters consider bleachers and filters, oil recovery, safety matters, and the significance of commonly used tests. Written from a practical standpoint, the material is useful for processors already working in the fats and oils industry, as well as for those just entering it.

Since the original publication of this book in 1992, the bleaching process has continued to attract the attention of researchers and the edible-oil industry. In this 2nd edition, the reader is directed to more modern techniques of analysis such as flame-atomic adsorption, graphite furnace atomic adsorption, and atomic emission spectrometry involving direct current plasma (DCP) and inductively coupled plasma (ICP). It also discusses the Freundlich Equation and reports on high-temperature water extraction, high- temperature oxidative aqueous regeneration, and extraction with supercritical CO2. Finally, various degumming methods improved over the past several decades are discussed - Second edition features the progress in the bleaching and purifying of fats and oils since the mid-1990s - Includes extensive details on the adsorptive purification of an oil prior to subsequent steps in the process, including refining and deodorization - Offers practical considerations for choosing membranes, filtration equipment, and other key economic consideratons

Refining of Oils and Fats for Edible Purposes, Second Revised Edition details the processes and treatments of crude (plant- and animal-based) oils and fats to render them fit for human consumption. The book is composed of five chapters. The first two chapters provide the methods in refining fat-insoluble and fat-soluble impurities. The third chapter presents techniques to minimize the shrinkage of crude fat and oils entering the process and increase production output. Chapter 4 considers refinery plant design based on the kinds of fats to be processed, kinds of processes to be implemented and projected output. The last chapter presents statistical data of oil and fat consumption from selected countries. Industrial engineers, production managers, chemists, plant designers, and students will find the book a good source of information.