This second edition explains the fundamentals of enzymology and describes the role of enzymes in food, agricultural and health sciences. Among other topics, it provides new methods for protein determination and purification; examines the novel concept of hysteresis; and furnishes new information on proteases, oxidases, polyphenol oxidases, lipoxygenases and the enzymology of biotechnology.

Discussing methods of enzyme purification, characterization, isolation, and identification, this book details the chemistry, behavior, and physicochemical properties of enzymes to control, enhance, or inhibit enzymatic activity for improved taste, texture, shelf-life, nutritional value, and process tolerance of foods and food products. The book covers general aspects of enzymology and the biotechnological strategies for enzyme discovery and development. It describes prototypic enzymes of the six chemical types of reactions catalyzed by enzymes, addressing what the enzymes do, their importance to feed and food production, their chemical and biological properties, and measurement of their activity.

Food and raw material for its production was generally produced via the traditional agriculture. On the other hand, novel chemicals were manufactured in the laboratory or extracted from plant and animal sources. However, as the world population is steadily in creasing, there is a decrease in traditional agriculture productivity and concerns are also expressed over the damage inflicted to the environment and restrictions that might be en forced in food production. At the same time, there is an increasing demand for high qual ity agricultural products as well as for food ingredients related to both the traditional or newly discovered nutrients or phytochemicals. Trends and developments,~n the area of plant biotechnology and bioengineering has allowed manipulation of genes' !lnd/or insertion of new genes, thus production of trans genic plants. Starting from the introduction of agronomic traits, particularly stress resis tance to diverse environmental factors, process and sensory characteristics, food quality and production of novel varieties of plant-based products through genetic engineering, biotechnology is changing the,;agriculture and the concept of production of plant-ba~~d raw materials. Increasing attention is being paid on research for production of plants !pat can provide a wide array of food and non-food products. Perhaps the first non-food pro,d uct that plant biotechnology would achieve is production of large scale custom-designed industrial oils, but the list of chemicals is long, ranging" from oils and specific triacyl glycerols to biopolymers, enzymes, blood components, amo~g others.

Food and raw material for its production was generally produced via the traditional agriculture. On the other hand, novel chemicals were manufactured in the laboratory or extracted from plant and animal sources. However, as the world population is steadily in creasing, there is a decrease in traditional agriculture productivity and concerns are also expressed over the damage inflicted to the environment and restrictions that might be en forced in food production. At the same time, there is an increasing demand for high qual ity agricultural products as well as for food ingredients related to both the traditional or newly discovered nutrients or phytochemicals. Trends and developments,~n the area of plant biotechnology and bioengineering has allowed manipulation of genes' !lnd/or insertion of new genes, thus production of trans genic plants. Starting from the introduction of agronomic traits, particularly stress resis tance to diverse environmental factors, process and sensory characteristics, food quality and production of novel varieties of plant-based products through genetic engineering, biotechnology is changing the,;agriculture and the concept of production of plant-ba~~d raw materials. Increasing attention is being paid on research for production of plants !pat can provide a wide array of food and non-food products. Perhaps the first non-food pro,d uct that plant biotechnology would achieve is production of large scale custom-designed industrial oils, but the list of chemicals is long, ranging" from oils and specific triacyl glycerols to biopolymers, enzymes, blood components, amo~g others.

This Symposium on Modern Methods of Food Analysis was the sev enth in a series of basic symposia, begun in 1976, on topics of major importance to food scientists and food technologists. The Symposium, sponsored jointly by the Institute of Food Technologists and the In ternational Union of Food Science and Technology, was held June 17 and 18, 1983, in New Orleans immediately prior to the 43rd annual 1FT meeting. Like the other six basic symposia, the program brought together outstanding speakers, from biochemistry, chemistry, food science, microbiology and nutrition, who are at the cutting edge of their specialty, and provided a setting where they could interact with each other and with the participants. The Symposium and this book are dedicated to the memory of George F. Stewart (1908-1982) who made so many important contributions to the field of food science, including that of food analysis. Bernard S. Schweigert has documented George F. Stewart's contributions in the Dedication of this book.

There are 71 chapters in the book and authors from Australia, Brazil, Canada, China, Hong Kong, Japan, Mexico, Taiwan and the United States. The chapters are arranged under seven sections, which include General Topics in Food Science and Technology; Food Processing and Engineering; Antioxidants in Foods; Nutrition and Food Science; Food Safety; Sensory Science of Foods; and Food Biotechnology.

Many of the chapters are exceptional in the quality and depth of science and state-of-the-art instrumentation and techniques used in the experimentation. There is literally a gold mine of new information available in this book, not only for healthful foods for the Pacific Rim but for many other areas as well.