Food carbohydrate chemistry:
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Buch |
| Sprache: | English |
| Veröffentlicht: |
Chichester
Wiley-Blackwell [u.a.]
2012
|
| Ausgabe: | 1. ed. |
| Schriftenreihe: | IFT Press series
|
| Schlagworte: | |
| Online-Zugang: | Cover image Inhaltsverzeichnis |
| Beschreibung: | "Not since "Sugar Chemistry" by Shallenberger and Birch (1975) has a text clearly presented and applied basic carbohydrate chemistry to the quality attributes and functional properties of foods. Now in Food Carbohydrate Chemistry, author Wrolstad emphasizes the application of carbohydrate chemistry to understanding the chemistry, physical and functional properties of food carbohydrates. Structure and nomenclature of sugars and sugar derivatives are covered, focusing on those derivatives that exist naturally in foods or are used as food additives. Chemical reactions emphasize those that have an impact on food quality and occur under processing and storage conditions. Coverage includes: how chemical and physical properties of sugars and polysaccharides affect the functional properties of foods; taste properties and non-enzymic browning reactions; the nutritional roles of carbohydrates from a food chemist's perspective; basic principles, advantages, and limitations of selected carbohydrate analytical methods. An appendix includes descriptions of proven laboratory exercises and demonstrations. Applications are emphasized, and anecdotal examples and case studies are presented. Laboratory units, homework exercises, and lecture demonstrations are included in the appendix. In addition to a complete list of cited references, a listing of key references is included with brief annotations describing their important features"--Provided by publisher. Includes bibliographical references and index |
| Beschreibung: | XX, 217 S. graph. Darst. |
| ISBN: | 9780813826653 0813826659 |
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| 500 | |a Includes bibliographical references and index | ||
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Datensatz im Suchindex
| _version_ | 1804149223252295680 |
|---|---|
| adam_text | Titel: Food carbohydrate chemistry
Autor: Wrolstad, Ronald E
Jahr: 2012
Contributors xv
Acknowledgments xvii
Introduction xix
1 Classifying, Identifying, Naming, and Drawing Sugars
and Sugar Derivatives 1
Structure and Nomenclature of Monosaccharides 2
Aldoses and Ketoses 2
Configurations of Aldose Sugars 3
D- vs. L-Sugars 3
Different Ways of Depicting Sugar Structures 5
Fischer, Haworth, Mills, and Conformational Structures 5
Classifying Sugars by Compound Class-Hemiacetals,
Hemiketals, Acetals, and Ketals 7
Structure and Nomenclature of Disacchaarides 8
Structure and Optical Activity 10
A Systematic Procedure for Determining Conformation
(C-l or 1-C), Chiral Family (D or L), and Anomeric Form
(a or ß) of Sugar Pyranoid Ring Structures 13
Structure and Nomenclature of Sugar Derivatives with
Relevance to Food Chemistry 14
Glycols (Alditols) 14
Glyconic, Glycuronic, and Glycaric Acids 15
Deoxy Sugars 17
Amino Sugars and Glycosyl Amines 17
Glycosides 18
Sugar Ethers and Sugar Esters 19
Vocabulary 20
References 21
2 Sugar Composition of Foods 23
Introduction 23
Sugar Content of Foods 24
Composition of Sweeteners 24
Cane and Beet Sugar 24
Honey 26
Starch-Derived Sweeteners 27
Inulin Syrup 28
Sugar Composition of Fruits and Fruit Juices 28
Vocabulary 31
References 31
Reactions of Sugars 35
Introduction 35
Mutarotation 35
Oxidation of Sugars 39
Glycoside Formation 40
Acid Catalyzed Sugar Reactions 42
Alkaline-Catalyzed Sugar Reactions 43
Summary 45
Vocabulary 47
References 47
Browning Reactions 49
Introduction 50
Key Reactions in Maillard Browning 51
Introductory Comments 51
Sugar-Amino Condensation 51
The Amadori and Heyn s Rearrangements 53
Dehydration, Enolization, and Rearrangement
Reactions 54
The Strecker Degradation 55
Final Stages: Condensation and Polymerization 58
An Alternate Free-Radical Mechanism for Nonenzymatic
Browning 58
Measurement of Maillard Browning 59
Control of Maillard Browning 60
Introductory Comments 60
Water Activity 60
The Importance of pH 61
Nature of Reactants 62
Temperature 65
Oxygen 68
Chemical Inhibitors 68
Other Browning Reactions 68
Caramelization 68
Ascorbic Acid Browning 69
Enzymatic Browning 69
Assessing Contributing Factors to Nonenzymatic
Browning 70
Vocabulary 72
References 72
5 Functional Properties of Sugars 77
Introduction 77
Taste Properties of Sugars 78
The Shallenberger-Acree Theory for Sweetness Perception 80
Sugar Solubility 83
Crystallinity of Sugars 85
Hygroscopicity 86
Humectancy 87
Viscosity 87
Freezing Point Depression and Boiling Point Elevation 87
Osmotic Effects 88
Vocabulary 88
References 88
6 Analytical Methods 91
Introduction 91
Physical Methods 92
Refractometry 92
Density 94
Polarimetry 95
Colorimetric Methods 95
Total Sugars by Phenol-Sulfuric Acid 95
Reducing Sugar Methods 96
Chromatographic Methods 96
Paper and Thin-Layer Chromatography 96
Gas-Liquid Chromatography 97
HPLC 100
Enzymic Methods 102
Carbon Stable-Isotopic Ratio Analysis (SIRA) 103
References 104
7 Starch in Foods 107
Introduction 108
Sources of Starch 108
Molecular Structure of Starch 109
Starch Granules 112
Gelatinization and Pasting: The Cooking of Starch 113
Rétrogradation and Gelation: The Cooling of Cooked Starch 115
Monitoring Starch Transitions 118
Microscopy 118
Viscometric Methods 118
Differential Scanning Calorimetry 119
Starch Hydrolytic Enzymes 120
ot-Amylase 121
ß-Amylase 122
Modified Starches 122
Physical Modifications 123
Chemical Modifications 125
Resistant Starch 127
Concluding Remarks 129
Vocabulary 129
References 131
Plant Cell Wall Polysaccharides 135
Introduction: Why Plant Cell Walls are Important 135
Cellulose 137
Hemicelluloses 139
Xyloglucans 139
Heteroxylans 140
(l- 3),(l- 4)-ß-D-Glucans 140
Mannans 141
Pectic Polysaccharides 141
Interactions Between Polysaccharides and Cellulose 143
The Plant Cell Wall Structure 144
Vocabulary 145
References 145
Nutritional Roles of Carbohydrates 147
Introduction 147
The Digestive Process: From the Bucchal Cavity through
the Small Intestine 148
Absorption of Sugars 149
Sugar Metabolism 152
The Large Intestine and the Digestive Process 153
The Colon 153
Intestinal Microflora 153
Fate of Nonabsorbed Monosaccharides, Sugar
Derivatives, and Oligosaccharides 155
Dietary Fiber 158
Carbohydrate Nutrition and Human Health 159
Vocabulary 162
References 163
Appendices 165
Unit 1. Laboratory/Homework Exercise-Building
Molecular Models of Sugar Molecules 167
Unit 2. Homework Exercise-Recognizing Hemiacetal,
Hemiketal, Acetal, and Ketal Functional Groups 171
Unit 3. Laboratory/Homework Exercise-Specification of
Conformation (C-l or 1-C), Chiral Family (D or L), and
Anomeric Form (a or ß) of Sugar Pyranoid Ring
Structures 175
Unit 4. Demonstration of the Existence of Plane-Polarized
Light and the Ability of Sugar Solutions to Rotate
Plane-Polarized Light 181
Unit 5. Laboratory Exercise-Sugar Polarimetry 183
Unit 6. Laboratory Exercise or Lecture Demonstration-The
Fehling s Test for Reducing Sugars 187
Unit 7. Laboratory Exercise-Student-Designed Maillard
Browning Experiments 189
Unit 8. Laboratory Exercise or Lecture
Demonstration-Microscopic Examination of Starch 193
Unit 9. Names and Structures of Oligosaccharides 197
Index 111
|
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| spelling | Wrolstad, Ronald E. Verfasser aut Food carbohydrate chemistry Ronald E. Wrolstad 1. ed. Chichester Wiley-Blackwell [u.a.] 2012 XX, 217 S. graph. Darst. txt rdacontent n rdamedia nc rdacarrier IFT Press series "Not since "Sugar Chemistry" by Shallenberger and Birch (1975) has a text clearly presented and applied basic carbohydrate chemistry to the quality attributes and functional properties of foods. Now in Food Carbohydrate Chemistry, author Wrolstad emphasizes the application of carbohydrate chemistry to understanding the chemistry, physical and functional properties of food carbohydrates. Structure and nomenclature of sugars and sugar derivatives are covered, focusing on those derivatives that exist naturally in foods or are used as food additives. Chemical reactions emphasize those that have an impact on food quality and occur under processing and storage conditions. Coverage includes: how chemical and physical properties of sugars and polysaccharides affect the functional properties of foods; taste properties and non-enzymic browning reactions; the nutritional roles of carbohydrates from a food chemist's perspective; basic principles, advantages, and limitations of selected carbohydrate analytical methods. An appendix includes descriptions of proven laboratory exercises and demonstrations. Applications are emphasized, and anecdotal examples and case studies are presented. Laboratory units, homework exercises, and lecture demonstrations are included in the appendix. In addition to a complete list of cited references, a listing of key references is included with brief annotations describing their important features"--Provided by publisher. Includes bibliographical references and index Carbohydrates Kohlenhydrate (DE-588)4164517-0 gnd rswk-swf Lebensmittelchemie (DE-588)4034873-8 gnd rswk-swf Lebensmittelchemie (DE-588)4034873-8 s Kohlenhydrate (DE-588)4164517-0 s DE-604 http://catalogimages.wiley.com/images/db/jimages/9780813826653.jpg Cover image HBZ Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=025090654&sequence=000004&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Wrolstad, Ronald E. Food carbohydrate chemistry Carbohydrates Kohlenhydrate (DE-588)4164517-0 gnd Lebensmittelchemie (DE-588)4034873-8 gnd |
| subject_GND | (DE-588)4164517-0 (DE-588)4034873-8 |
| title | Food carbohydrate chemistry |
| title_auth | Food carbohydrate chemistry |
| title_exact_search | Food carbohydrate chemistry |
| title_full | Food carbohydrate chemistry Ronald E. Wrolstad |
| title_fullStr | Food carbohydrate chemistry Ronald E. Wrolstad |
| title_full_unstemmed | Food carbohydrate chemistry Ronald E. Wrolstad |
| title_short | Food carbohydrate chemistry |
| title_sort | food carbohydrate chemistry |
| topic | Carbohydrates Kohlenhydrate (DE-588)4164517-0 gnd Lebensmittelchemie (DE-588)4034873-8 gnd |
| topic_facet | Carbohydrates Kohlenhydrate Lebensmittelchemie |
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