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ENZYMES and Their Role in Cereal Technology

Edited by James E. Kruger, David Lineback, and Clyde E. Stauffer

Perfect for those involved in new product formulation and quality assurance. Includes detailed information on carbohydrases, proteases, oxidases, ans ester hydrolases.

 

1987; 6" × 9" hardcover; 
403 pages; illustrated; index.
ISBN 0-913250-46-5
$159


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Table of Contents

1. Some General Aspects of Enzyme Chemistry. (Clyde E. Stauffer)

I. Introduction

  • A. Catalysis

  • B. Protein Properties

  • II. Enzyme Kinetics

  • A. Fundamental Rate Equations

  • B. Data Analysis

  • C. Some Kinetic Complications

  • D. Effect of pH- E. Temperature Effects

    III. Enzyme Inhibition

  • A. Reversible Inhibitors

  • B. Irreversible Inhibitors

  • IV. Analytical Methods

  • A. Kinds of Information Needed

  • B. Kinetic Categories of Assay

  • C. Reaction Signals

  • D. Basically Sound or Practically Useful?

  • 2. Methods for the Purification and Separation of Cereal Enzymes and Their Multiple Forms. (B. A. Marchylo and J. E. Krueger)

    I. Introduction

    II. General Considerations

    II. Classical Enzyme Purification Procedures

    IV. Zone Electrophoresis

    V. Isoelectric Focusing

    VI. Isoelectric Focusing in Immobilized pH Gradients

    VII. Detection (Visualization) of Enzyme Zones

    VIII. Chromatofocusing

    IX. Ion-exchange Column Chromatography

    X. Gel Filtration Chromatography

    XI. Affinity Chromatography

    XII. High-Performance Liquid Chromatography

    3. Enzyme Structural Genes and Their Exploitation in Wheat Genetics and Breeding. (Charles C. Ainsworth and Michael D. Gale)

    I. Introduction

  • A. Genetic Analysis of Enzyme Loci in Wheat

  • B. Enzyme Gene Nomenclature in Wheat

  • II. a-Amylase Structural Genes in Wheat

  • A. Genetic Control of a-Amylase

  • B. Gene Mapping

  • C. Molecular Approaches

  • D. a -Amylase Species in Developing and Germinating Wheat Grain

  • E. Further -Amylase Species in Wheat

  • III. The Application of -Amylase Variation to Wheat Genetics and Breeding

  • A. Identification of Chromosomes of Alien Species

  • B. a-Amylase as a Marker for Eyespot Resistance

  • IV. Summary of a-Amylase Genetics

    V. B-Amylase Structural Genes in Wheat

  • A. Genetic Control of B-Amylase

  • B. Homoeologous B-Amylase Genes in Related Species

  • VI. The Genetics of Other Enzyme Systems in Wheat and Their Applications

  • A. Varietal Identification Using Enzyme Markers

  • B. The Use of Enzyme Markers During Genetic Manipulation

  • VII. Conclusions

    4. Physiological Aspects of Enzymes During Grain Development and Germination. (C. M. Duffus)

    I. Introduction

    II. Developmental Morphology

  • A. The Endosperm

  • B. The Embryo

  • C. Outer Layers of the Caryopsis

  • III. Supply of Assimilate and Other Substances During Grain Development

    IV. Enzymology of Caryopsis Development

  • A. The Endosperm

  • B. The Pericarp

  • C. The Embryo

  • V. Plant Growth Regulators and Grain Development

    VI. The Mature Seed

    VII. Dormancy

    VIII. Morphological Changes During Germination

  • A. The Scutellum

  • B. The Aleurone Layer

  • C. The Starchy Endosperm

  • IX. The Biochemistry of Germination

  • A. The Embryo

  • B. The Origin of Gibberellinlike Substances

  • C. Gibberellins and -Amylase Formation

  • D. Release of Other Hydrolases by Barley and Wheat Aleurone Layers

  • E. The Increase in Measurable Hydrolytic Enzyme Activity in Maize and Sorghum

  • F. Mobilization of Endosperm Carbohydrate Reserves

  • G. Mobilization of Endosperm Protein and Lipid Reserves

  • X. Conclusions

    5. Carbohydrate-Degrading Enzymes in Cereals. (J. E. Kruger and D. R. Lineback)

    I. Introduction

    II. a-Amylases

  • A. Methods of Determination

  • B. Multiple Forms of a-Amylase

  • C. Anatomic Distribution and Amounts in Cereals

  • D. Chemical and Physical Properties

  • E. Mechanism of Action on Starch

  • III. B-Amylases

  • A. Methods of Determination

  • B. Anatomic Distribution and Amounts in Cereals

  • C. Multiple Forms of B-Amylase

  • D. Chemical and Physical Properties

  • IV. Debranching Enzymes

  • A. Methods of Determination

  • B. Anatomic Distribution and Amounts in Cereals

  • C. Multiple forms of Debranching Enzymes

  • D. Chemical and Physical Properties

  • E. Mechanism of Action on Starchlike Substrates and Pullulan

  • V. Other Carbohydrases

    6. a-Amylase Inhibitors. (Vittorio Silano)

    I. Introduction

    II. Detection and Assay

    III. Occurrence in Nature

  • A. Cereals

  • B Legumes

  • C. Tubers

  • D. Other Plant Sources

  • IV. Purification and Properties

  • A. Wheat

  • B. Barley

  • C. Rye

  • D. Maize

  • E. Ragi

  • F. Kidney Beans

  • G. Peanuts

  • H. Colocasia

  • I. Yam

  • V. Specificity

    VI. Stability

  • A. Cereals

  • B. Legumes

  • C. Tubers

  • VII. Interaction with Amylase

  • A. Reversibility of Inhibition

  • B. Amylase-Inhibitor Complexes

  • C. Kinetic Studies

  • D. Influence of Reactant Addition Order and Role of Starch

  • E. Influence of Preincubation pH and Ionic Strength

  • F. Influence of Maltose

  • G. The Model

  • VIII. Phylogenesis and Coding Genes

    IX. Role in the Plant

  • A. Inhibitors of Exogenous a-Amylases

  • B. Inhibitors of Endogenous a-Amylases

  • X. Significance for Insect Resistance

    XI. Nutritional and Toxicological Significance

  • A. Inhibitors from What

  • B. Inhibitors from Beans

  • C. General Remarks

  • XII. Applications in Biochemistry, Medicine, and Other Fields

  • A. Purifying and Characterizing a-Amylases

  • B. Diagnosing Pancreatic Disorders and Other Forms of Hyperamylasemia

  • C. Controlling Diabetes

  • D. Controlling Obesity

  • E. Improving Plant Foods Through Breeding

  • F. Technological Aspects

  • XIII. Major Problem Areas and Future Research Topics

    7. Proteases Peptidases, and Inhibitors. (Clyde E. Stauffer)

    I. Introduction

  • A. Physiologic Role

  • B. General Mechanism of Action

  • C. Classification

  • D. Peptide-Bond Syntheses

  • II. Mechanisms of Action

  • A. Acidic Proteases

  • B. Serine Proteases

  • C. Sulfhydryl Proteases

  • D. Metalloproteases

  • III. Proteases and Peptidases in Cereals

  • A. Acidic Proteases

  • B. Serine Proteases

  • C. Sulfydryl Proteases

  • D. Metalloproteases

  • E. Summary and Prospects

  • IV. Natural Protease Inhibitors

  • A. Measuring Inhibitory Activity

  • B. Inhibitors in Cereals

  • C. Some Other Inhibitors

  • V. Summary

    8. Oxidases. (Clyde E. Stauffer)

    I. Introduction

  • A. Nomenclature

  • II. Lipoxygenase

    III. Polyphenol Oxidases

  • A. Phenol Oxidases in Cereal Grains

  • IV. Peroxidase

  • A. Assays of Activity

  • B. Peroxidases in Cereal Grains

  • V. Ascorbic Acid Oxidase

    VI. Disulfide Oxidoreductase

  • A. Glutathione Reductase

  • B. Protein Disulfide Isomerase

  • VII. Superoxide Dismutase

    9. Ester Hydrolases. (Clyde E. Stauffer)

    I. Introduction

  • A. Nomenclature

  • B. Literature Reviews

  • II. Lipases

  • A. General Aspects

  • B. Lipases in Cereal Grains

  • III. Esterases

  • A. General Characteristics

  • B. Cereal Esterases

  • IV. Phosphatases

  • A. Acid Phosphatase

  • B. Phytase

  • C. Phospholipase D

  • 10. Role of Enzymes in Baking. (R. Drapron and B. Godon)

    I. Introduction

    II. a-Amylases

  • A. Amylolytic Activity During Dough-Making

  • B. Effects of Maltose Production on Dough Fermentation

  • C. Effect of Dextrin and Damaged Starch on Dough Development

  • D. Amylolytic Activity During Baking

  • E. a-Amylase Supplementation of Flour

  • F. Amylase Addition Methods

  • III. Proteases

  • A. Measuring the Activity of Proteases in Cereal Products

  • B. Nature and Properties of Proteases

  • C. Technological Role of Proteases in the Baking Industries

  • D. Effect of Proteases on the Characteristics of the Finished Product

  • IV. Oxidoreductases

  • A. Oxidations During Processing

  • B. Lipoxygenase: Polyunsaturated Fatty Acid Oxidation

  • C. Thiol Oxidation

  • D. Release of Bound Lipids and Rheological Effects

  • E. Oxidation of Carotenoid and Fat-Soluble Vitamins

  • F. Generation of Volatile Compounds

  • G. Peroxidase and Catalase

  • H. Polyphenol Oxidase

  • I. Ascorbic Acid Oxidase-Dehydroascorbate Reductase System

  • J. Protein Disulfide Isomerase

  • K. Relationship Among Oxidoreductase Activities

  • V. Summary and Conclusions

    11. The Effect of Enzymes on Pasta and Noodle Products. (R. R. Matsuo)

    I. Introduction

    II. Durum Pasta Products

  • A. Lipoxidase

  • B. Polyphenol Oxidase and Peroxidase

  • C. a-Amylase

  • D. Other Enzymes

  • III. Noodle Products

    12. Enzymes in the Preparation of Beer and Fuel Alcohol. (Robert P. Beckerich and Leo J. Denault)

    I. Introduction

    II. Beer

  • A. Brewing with Malt

  • B. Undermodified Malt- Applications of Enzymes in the Mash

  • C. Adjuct Brewing

  • D. Barley Brewing

  • E. Low-Calorie Beer

  • F. Removing Diacetyl from Beer

  • G. Chill Haze in Beer

  • III. Fuel Alcohol

  • A. Liquefaction

  • B. Saccharification

  • C. Fermentation

  • IV. Summary

    13. Enzymes in the Industrial Utilization of Cereals. (P. Linko)

    I. Introduction

    II. Starch-Derived Syrups

  • A. Maltodextrins

  • B. Glucose Syrups

  • C. Maltose Syrups

  • D. High-Fructose Syrups

  • III. Miscellaneous Applications of Starch

  • A. Paper Industry

  • B. Textile Industry

  • C. Cyclodextrins

  • IV. Miscellaneous Applications of Enzymes

    V. Producing Industrial and Fuel Ethanol from Cereal Grain

  • A. Conventional Technology

  • B. Immobilized Yeast and Bacteria

  • C. Extrusion Cooking

  • VI. Animal Feeds

    VII. Epilogue

    Index

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    Critical Reviews

    "...offers a wealth of information to cereal scientists...."
    --FOOD TECHNOLOGY IN NEW ZEALAND

    "Its coverage of cereal enzymes is thorough and leaves no stone unturned...It is highly recommended for both those actively working in this field and for anyone who wishes to learn more about it."
    --FOOD TECHNOLOGY

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