Since the publication of the first edition in 1992, the bleaching process has continued to attract the attention of researchers and the edible-oil industry. In this second edition, readers are directed to modern techniques of trace-metal analysis, including flame-atomic adsorption, graphite furnace atomic adsorption, and atomic emission spectrometry involving direct current plasma (DCP) and inductively coupled Plasma (ICP). The book discusses the Freundlich Equation and reports on high-temperature water extraction, high- temperature oxidative aqueous regeneration, and extraction with supercritical CO2. Various degumming methods improved over the past several decades are also discussed.

As in the first edition, discussion is not confined to vegetable oils, and the hydrogenation technique is considered in detail. The "why" as well as the "how" of hydrogenation are addressed. Written for both production staff who need advice on specific problems and development personnel who seek directions, if not solutions, the book offers direct practical advice along with explanations of why changes occur as they do. The glossary of technical terms contains a more detailed explanation of some features mentioned throughout the text.