Gerald Reed – författare

In the past 35 years, the use of commercial enzymes has grown from an insignificant role in the food industry to an important aspect of food processing. This Third Edition of Enzymes in Food Processing explores recent and extensive changes in the use of enzymes as well as the discovery of new enzymes and their uses. Included in the book is a history of the role of enzymes in food processing, enzyme characterization, a discussion of different classes of enzymes including lipases and proteases, commercial enzyme production, and the processing of particular foods such as meat, vegetables, fruit, baked goods, milk products, and beer. Unlike earlier editions, it provides basic information on enzymes and their uses not adequately described in the current literature. Food technologists will find in this edition a description of the properties of those enzymes that are important in food processing, as well as a description of the properties of those enzymes that are important in food processing, as well as a description of the many applications of enzymes in the foods processing industry. The book is intended for food technologists, and will be of value to the microbiologist and enzyme chemist as well. This treatise provides a comprehensive treatment of enzymes used in food processing.- Covers genetic modification of enzymes in the food industry- Discuss enzyme function and dependence on environmental parameters- Explores practical applications of food enzymes in industry

In the past 35 years, the use of commercial enzymes has grown from an insignificant role in the food industry to an important aspect of food processing. This Third Edition of Enzymes in Food Processing explores recent and extensive changes in the use of enzymes as well as the discovery of new enzymes and their uses. Included in the book is a history of the role of enzymes in food processing, enzyme characterization, a discussion of different classes of enzymes including lipases and proteases, commercial enzyme production, and the processing of particular foods such as meat, vegetables, fruit, baked goods, milk products, and beer. Unlike earlier editions, it provides basic information on enzymes and their uses not adequately described in the current literature. Food technologists will find in this edition a description of the properties of those enzymes that are important in food processing, as well as a description of the properties of those enzymes that are important in food processing, as well as a description of the many applications of enzymes in the foods processing industry. The book is intended for food technologists, and will be of value to the microbiologist and enzyme chemist as well. This treatise provides a comprehensive treatment of enzymes used in food processing. Covers genetic modification of enzymes in the food industry Discuss enzyme function and dependence on environmental parameters Explores practical applications of food enzymes in industry

Enzymes in Food Processing, Second Edition provides an understanding of the action of enzymes and the changes in enzyme technology. This book discusses the introduction of enzyme processes into the food industry. Organized into 20 chapters, this edition starts with an overview of the practical application of enzymes to the manufacture and processing of foods, such as the use of enzymes to clarify wine, produce dextrose, tenderize meat, and liquefy candy centers. This book then discusses the variables that affect all enzymes, which include moisture content, temperature, and pH. This text examines as well the different characteristics of competitive and noncompetitive inhibitions. Other chapters focus on the properties and actions of carbohydrases, which cause the chemical bonds to unite simple sugars into the polymeric saccharides. The final chapter deals with the allergic reactions that commercial enzymes may cause to humans. Microbiologists, food technologists, nutritionists, and food scientists will find this book extremely useful.

Enzymes in Food Processing describes the properties and practical applications of enzymes in food processing. This 20-chapter book includes applications such as the use of enzymes to tenderize meat, to produce dextrose, to clarify wine, to liquefy candy centers. The first part of this text is an introduction to the chemistry and kinetics of enzyme reactions. Chapters 2 to 5 describe the general nature of enzyme reactions, reaction rates, and the effect of pH and temperature, as well as the effect of inhibitors and activators on enzyme reactions. Chapters 6 to 9 examine specific enzymes, including the carbohydrases, proteases, lipases, and oxidoreductases, while Chapter 10 presents the methods of enzyme production. Considerable chapters are devoted to the application of enzymes in food processing. The chapters are arranged according to commodities, such as milling, baking, starch, dairy products, fruits, fruit products, wines, distilled alcoholic beverages, confectionary, and flavors. Chapter 19 and 20 includes a brief description of the closely related use of enzymes in feeds and as digestive aids, as well as the health and legal aspects of the use of enzymes. Food technologists, microbiologists, and enzyme chemists will find this book invaluable.

Yeasts are the active agents responsible for three of our most important foods - bread, wine, and beer - and for the almost universally used mind/ personality-altering drug, ethanol. Anthropologists have suggested that it was the production of ethanol that motivated primitive people to settle down and become farmers. The Earth is thought to be about 4. 5 billion years old. Fossil microorganisms have been found in Earth rock 3. 3 to 3. 5 billion years old. Microbes have been on Earth for that length of time carrying out their principal task of recycling organic matter as they still do today. Yeasts have most likely been on Earth for at least 2 billion years before humans arrived, and they playa key role in the conversion of sugars to alcohol and carbon dioxide. Early humans had no concept of either microorganisms or fermentation, yet the earliest historical records indicate that by 6000 B. C. they knew how to make bread, beer, and wine. Earliest humans were foragers who col­ lected andate leaves, tubers, fruits, berries, nuts, and cereal seeds most of the day much as apes do today in the wild. Crushed fruits readily undergo natural fermentation by indigenous yeasts, and moist seeds germinate and develop amylases that produce fermentable sugars. Honey, the first con­ centrated sweet known to humans, also spontaneously ferments to alcohol if it is by chance diluted with rainwater. Thus, yeasts and other microbes have had a long history of 2 to 3.