Food flavour technology

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Sprache:English
Veröffentlicht: Sheffield [u.a.] Sheffield Acad. Pr. [u.a.] 2002
Ausgabe:1. publ.
Schriftenreihe:Sheffield food technology
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Datensatz im Suchindex

DE-BY-TUM_call_number 1002 LEB 431f 10.2001 A 257
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DE-BY-TUM_media_number 040004749157
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adam_text Titel: Food flavour technology Autor: Taylor, Andrew J. Jahr: 2002 Contents 1 Creating and formulating flavours 1 JOHN WRIGHT 1.1 Introduction 1 1.1.1 A little history 1 1.2 Interpreting analyses 2 1.3 Flavour characteristics 3 1.3.1 Primary characters 3 1.3.2 Secondary characteristics .S 1.3.3 Taste effects 6 1.3.4 Complexity 7 1.3.5 Flavour balance 7 1.3.6 Unfinished work 8 1.4 Applications 9 1.4.1 Ingredient factors 9 1.4.2 Processing factors 1] 1.4.3 Storage factors 1 ] 1.4.4 Consumption factors 12 1.5 Flavour Forms 12 1.5.1 Water-soluble liquid flavours 12 1.5.2 Clear water-soluble liquid flavours 14 1.5.3 Oil-soluble liquid flavours 14 1.5.4 Emulsion-based flavours 15 1.5.5 Dispersed flavours (5 1.5.6 Spray-dried flavours 15 1.6 Production issues 17 1.7 Regulator) affairs 18 1.8 A typical flavour 18 1.9 Commercial considerations 21 1.9.1 International tastes 21 1.9.2 Abstract flavours 23 1.9.3 Matching 24 1.9.4 Customers 25 1.10 Summary 26 2 The basic chemistry and process conditions underpinning reaction flavour production 27 JOSEF KERLER and CHRIS WINKEL 2.1 Introduction 27 2.2 General aspects of the Maillard reaction 27 2.2.1 Intermediates as flavour precursors 28 2.2.2 Carbohydrate fragmentation 33 CONTENTS 2.2.3 Strecker degradation 35 2.3 Important aroma compounds derived from Maillard reaction in food and process flavours 37 2.3.1 Character impact compounds of thermally treated foods 37 2.3.2 Character impact compounds of process flavours 41 2.4 Preparation of process flavours 44 2.4.1 General aspects 44 2.4.2 Factors influencing flavour formation 45 2.4.3 Savoury process flavours 48 2.4.4 Sweet process flavours 51 2.5 Outlook 51 References 52 Biotechnological flavour generation 60 RALF G. BERGER, ULRICH KRINGS and HOLGER ZORN 3.1 Introduction 60 3.2 Natural flavours: market situation and driving forces 60 3.3 Advantages of biocatalysis 61 3.4 Microorganisms 62 3.4.1 Biotransformation and bioconversion of monoterpenes 62 3.4.2 Bioconversion of C13-norisoprenoids and sesquiterpenes 66 3.4.3 Generation of oxygen heterocycles 67 3.4.4 Generation of vanillin, benzaldehyde and benzoic compounds 69 3.4.5 Generation of miscellaneous compounds 72 3.5 Enzyme Technology 73 3.5.1 Liberation of volatiles from bound precursors 74 3.5.2 Biotransformations 75 3.5.3 Kinetic resolution of racemates 76 3.6 Plant catalysts 77 3.6.1 Plant cell, tissue and organ cultures 77 3.6.2 Callus and suspension cultures 78 3.6.3 Organ cultures 79 3.6.4 Plant cell biotransformations 80 3.7 Flavours through genetic engineering 82 3.7.1 Genetically modified microorganisms 82 3.7.2 Isolated enzymes from genetically modified microorganisms 83 3.7.3 Plant rDNA techniques 84 3.8 Advances in bioprocessing 87 3.8.1 Process developments in microbial and enzyme systems 88 3.8.2 Process developments of plant catalysts 89 3.9 Conclusion 91 References 91 Plant-derived natural sources of flavours 105 PETER S. J. CHEETHAM 4.1 introduction 105 4.2 Properties of flavour molecules 105 4.2.1 Flavour perception 106 4.2.2 Differences in sensory character and intensity between isomers 113 CONTENTS xi 4.2.3 Extraction of flavours from plant material 114 4.2.4 Commercial, economic and safety aspects 119 4.3 Dairy flavours )20 4.3.1 Background 120 4.3.2 Cream and butter 121 4.3.3 Cheese 122 4.4 Fermented products 125 4.4.1 Hydrolysed vegetable proteins 125 4.4.2 Chocolate 126 4.4.3 Tea 128 4.4.4 Coffee 129 4.4.5 Beer 130 4.4.6 Wine 133 4.5 Cereal products 134 4.6 Vegetable sources of flavour 135 4.6.1 Vanilla 135 4.6.2 Spice flavours 136 4.6.3 Garlic, onion and related flavours 138 4.6.4 Brassica flavours, including mustard and horseradish 140 4.6.5 Fresh/green/grassy 140 4.7 Fruit 142 4.7.1 Apples 142 4.7.2 Pears 143 4.7.3 Grapefruit 144 4.7.4 Blackcurrant 144 4.7.5 Raspberry 145 4.7.6 Strawberry 145 4.7.7 Apricot and peach 146 4.7.8 Citrus and citrus processing 146 4.8 Other flavour characteristics 149 4.9 Conclusion 150 References 150 5 Flavour encapsulation using polymer-based delivery systems 153 DANIEL BENCZEDI 5.1 Introduction 153 5.2 Compatibility and cohesion 154 5.3 Sorption and swelling 157 5.4 Diffusion and release 160 5.5 Summary 163 References 164 6 Delivery of flavours from food matrices 167 SASKIA M. VAN RUTH and JACQUES P. ROOZEN 6.1 Introduction 167 6.2 Flavour properties 168 6.3 Thermodynamie aspects of flavour delivery 168 6.3.1 Definition of gas/product partition coefficients and activity coefficients 168 6.3.2 Types of binding 170 xii CONTENTS 6.3.3 Lipid-flavour interactions 171 6.3.4 Carbohydrate-flavour interactions 172 6.3.5 Protein-flavour interactions 174 6.4 Kinetic aspects of flavour delivery 175 6.4.1 Principles of interfacial mass transfer 175 6.4.2 Liquid food products 178 6.4.3 Semi-solid food products 179 6.4.4 Solid food products 179 6.5 Conclusions 181 References 181 7 Modelling flavour release 185 ROB LINFORTH 7.1 Introduction 185 7.2 Equilibrium partition models 186 7.2.1 The air-water partition coefficient 186 7.2.2 Estimation of Kaw using QSPR 187 7.2.3 Effect of lipids on volatile partitioning 189 7.2.4 QSPR estimation of the air-emulsion partition coefficient 190 7.3 Dynamic systems 192 7.3.1 Modelling flavour release from a retronasal aroma simulator 193 7.3.2 Nonequilibrium partition modelling of volatile loss from matrices 194 7.3.3 Modelling the gas phase dilution of equilibrium headspace 196 7.3.4 Modelling the gas phase dilution of equilibrium headspace above emulsions 198 7.3.5 Modelling the rate of volatile equilibration in the headspace above emulsions 199 7.4 In vivo consumption 200 7.4.1 Emulsion dilution during consumption 201 7.4.2 Effect of gas flow on volatile equilibration above emulsions 201 7.4.3 Modelling volatile transfer through the upper airway 202 7.4.4 Nonequilibrium partition model for in vivo release 203 7.4.5 Modelling flavour release using time intensity data 204 7.4.6 QSPR of in vivo volatile release from gels 205 7.5 Conclusion 207 References 208 8 Instrumental methods of analysis 210 GARY REINECCIUS 8.1 Analytical challenges 210 8.2 Aroma isolation 212 8.2.1 Aroma isolation methods based on volatility 213 8.2.2 Aroma isolation methods using solvent extraction 220 8.2.3 Solid-phase microextraction 222 8.2.4 General considerations in preparing aroma isolates 224 8.2.5 Aroma isolation summary 225 8.3 Selection of aroma isolation method 226 8.3.1 Complete aroma profile 226 8.3.2 Key components contributing to sensory properties 227 8.3.3 Off-notes in a food product 227 8.3.4 Monitoring aroma changes in foods 228 CONTENTS xiii 8.3.5 Using aroma profiles to predict sensory response 229 8.3.6 Summary comments on isolation methods 229 8.4 Aroma isolate fractionation prior to analysis 224 8.4.1 Fractionation of concentrates prior to analysis 230 8.5 Flavour analysis by gas chromatography 234 8.5.1 High-resolution gas chromatography 234 8.5.2 Gas chromatography-olfactometry 235 8.5.3 Specific gas chromatographic detectors 239 8.6 Flavour analysis by high-pressure liquid chromatography 240 8.7 Identification of volatile flavours 240 8.7.! Gas chromatography 241 8.7.2 Infrared spectroscopy 242 8.7.3 Mass spectrometry 243 8.8 Electronic noses 246 8.9 Summary 247 References 247 Sensory methods of flavour analysis 252 ANN C. NOBLE 9.1 Introduction 252 9.2 Types of test 252 9.2.1 Discrimination tests 252 9.2.2 Intensity rating tests 254 9.2.3 Time-intensity 255 9.2.4 Descriptive analysis 258 9.2.5 Consumer tests 259 9.2.6 Quality control tests 260 9.3 Sensory testing administration 261 9.3.1 Facilities 26 i 9.3.2 Test administration 262 9.3.3 Experimental design 262 9.4 Selection and training of judges 264 9.4.1 Human subject consent forms and regulations 264 9.4.2 Judge selection 265 9.4.3 Training 265 9.4.4 Reference standards 265 9.4.5 Evaluating judge performance 266 9.5 Statistical analysis of data 266 9.5.1 Difference tests 266 9.5.2 Analysis of variance 266 9.5.3 Power 267 9.5.4 Principal component analysis: an exploratory tool 26S 9.6 Relating sensory and instrumental flavour data 269 9.7 Summary 271 References 271 xiv CONTENTS 10 Flavour legislation 276 JACK KNIGHTS 10.1 Introduction 276 10.2 Methods of legislation 276 10.3 Legislation in the United States 277 10.4 International situation: JECFA 279 10.5 Council of Europe 280 10.6 European Community 283 10.7 The future 293 References 293 Index 297
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spellingShingle Food flavour technology
Análise sensorial de alimentos larpcal
Aromatisants
Saveur
Tecnologia de alimentos larpcal
Flavor
Flavoring essences
Aroma (DE-588)4137070-3 gnd
Lebensmittel (DE-588)4034870-2 gnd
Aromastoff (DE-588)4130237-0 gnd
subject_GND (DE-588)4137070-3
(DE-588)4034870-2
(DE-588)4130237-0
(DE-588)4143413-4
title Food flavour technology
title_auth Food flavour technology
title_exact_search Food flavour technology
title_full Food flavour technology ed. by Andrew J. Taylor
title_fullStr Food flavour technology ed. by Andrew J. Taylor
title_full_unstemmed Food flavour technology ed. by Andrew J. Taylor
title_short Food flavour technology
title_sort food flavour technology
topic Análise sensorial de alimentos larpcal
Aromatisants
Saveur
Tecnologia de alimentos larpcal
Flavor
Flavoring essences
Aroma (DE-588)4137070-3 gnd
Lebensmittel (DE-588)4034870-2 gnd
Aromastoff (DE-588)4130237-0 gnd
topic_facet Análise sensorial de alimentos
Aromatisants
Saveur
Tecnologia de alimentos
Flavor
Flavoring essences
Aroma
Lebensmittel
Aromastoff
Aufsatzsammlung
url http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=009770702&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA
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