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Author:   Keith Grainger (Wine Educator)
Publisher:   John Wiley and Sons Ltd
Imprint:   Wiley-Blackwell
Dimensions:   Width: 17.50cm , Height: 3.10cm , Length: 24.90cm
Weight:   1.089kg
ISBN:  

9781118979068

ISBN 10:   1118979060
Pages:   528
Publication Date:   10 June 2021
Audience:   Professional and scholarly ,  Professional & Vocational
Format:   Hardback
Publisher's Status:   Active
Availability:   Available To Order  
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Table of Contents

ACKNOWLEDGMENTS PREFACE INTRODUCTION CHAPTER 1 Faults, Flaws, Off-Flavours, Taints, and Undesirable Compounds 1.1 Introduction 1.2 Advances in wine technology in recent decades 1.3 Changes in markets and the pattern of wine consumption in recent decades 1.4 The possible impact of some fault compounds upon human health 1.5 Sulfur dioxide and other possible allergens 1.6 Faults and taints 1.7 Distinguishing between faults and flaws 1.8 Sensory detection (perception) thresholds and sensory recognition thresholds 1.9 Consumer Rejection Thresholds (CRTs) 1.10 Basic categories of wine faults 1.11 Flaws 1.12 The incidence of wine faults 1.13 'Faulty' wines that exude excellence 1.14 Final reflections CHAPTER 2 Wine Tasting 2.1 Introduction 2.2 Anosimics, the Fatigue Effect, and Supertasters 2.3 Tasting conditions, equipment and glassware 2.4 The use of a structured tasting technique, and detection of faults 2.5 Appearance 2.6 Nose 2.7 Palate 2.8 Assessment of Quality 2.9 Assessment of Readiness for drinking/potential for ageing 2.10 Grading wine – the award of points 2.11 Blind tasting 2.12 Final reflections CHAPTER 3 Chloroanisoles, Bromoanisoles, Halophenols 3.1 Introduction 3.2 Haloanisole contaminations in the food, drinks, water, and pharmaceutical industries 3.3 Haloanisole contamination of wines 3.4 The economic and reputational costs to wine producers and the wine industry 3.5 Sensory characteristics and detection of haloanisoles in wine 3.6 The haloanisoles responsible and their detection thresholds 3.7 The formation pathways of haloanisoles from halophenols 3.8 Contamination of cork with TCA and other chloroanisoles 3.9 The cork industry in the dock 3.10 The cork industry begins to address the issues 3.11 The cork industry’s recent initiatives for haloanisole prevention and extraction 3.12 Winery and cooperage sources of haloanisole contamination in wines 3.13 Laboratory analysis for TCA and other haloanisoles in corks and wine 3.14 Prevention of haloanisole contamination of wineries and wines 3.15 Treatment of wines contaminated with haloanisoles 3.16 Chlorophenols and bromophenols as taints 3.17 'Musty' taints unrelated to halophenols and haloanisoles. 3.18 Final reflections CHAPTER 4 Brettanomyces (Dekkera) and Ethyl phenols 4.1 Introduction 4.2 Background and history 4.3 The Brett Controversy 4.4 Sensory characteristics, and detection of Brettanomyces related compounds in wine 4.5 The origins of Brettanomyces and formation of related compounds in wines 4.6 The danger periods and favourable conditions for the growth of Brettanomyces 4.7 Why are Brettanomyces related compounds found mostly in red wines? 4.8 Prevention – Formulation and implementation a Brett Control Strategy. 4.9 Laboratory Analysis for Brettanomyces and volatile phenols 4.10 Treatment of affected wines 4.11 What the future might hold for microbiological methods to inhibit Brettanomyces? 4.12 Final reflections CHAPTER 5 Oxidation, Premox and Excessive Acetaldehyde 5.1 Introduction 5.2 Oxidation in must and wine 5.3 Sensory characteristics and detection of excess acetaldehyde and oxidation in wine 5.4 Deliberately oxidised and highly oxygenated wines 5.5 Metal ions and substrates for oxidation 5.6 Enzymatic oxidation 5.7 Chemical oxidation 5.8 Microbial oxidation 5.9 Acetaldehyde 5.10 Sotolon 5.11 Oxygen management in winemaking 5.12 Oxygen uptake during cellar operations 5.13 Containers and closures 5.14 Pinking 5.15 Premature oxidation (Premox) 5.16 Prevention of excess acetaldehyde and oxidation 5.17 Additions of ascorbic acid – antioxidant or oxidising agent? 5.18 Laboratory analysis 5.19 Treatments 5.20 Final Reflections CHAPTER 6 Excessive sulfur dioxide, volatile sulfur compounds and reduced aromas 6.1. Introduction 6.2 The presence and role of sulfur, sulfur dioxide, sulfite and sulfate in wine production 6.3 Excessive sulfur dioxide 6.4 Oxygen management in winemaking 6.5 Reduction in wine – positive and negative 6.6 Hydrogen sulfide 6.7 Prevention of hydrogen sulfide formation 6.8 Treatment for hydrogen sulfide in wine 6.9 Laboratory analysis for sulfur dioxide, hydrogen sulfide and volatile sulfur compounds 6.10 Final reflections CHAPTER 7 Excessive volatile acidity and ethyl acetate 7.1 Introduction 7.2 Volatile acidity and ethyl acetate 7.3 The controversy of high levels of volatile acidity 7.4 Fixed acids and volatile acids 7.5 Sensory characteristics and detection of volatile acidity 7.6. Legal limits 7.7 Acetic acid bacteria 7.8 Production of acetic acid in wine 7.9 Ethyl acetate 7.10 Prevention of excessive volatile acidity and ethyl acetate. 7.11 Laboratory analysis 7.12 Treatments 7.13 Final reflections CHAPTER 8 Atypical ageing (ATA) – sometimes called Untypical ageing (UTA) 8.1 Introduction 8.2 The Atypical Ageing Controversy 8.3 The causes of Atypical Ageing and formation pathways 8.4 Sensory detection 8.5 Laboratory detection 8.6 The main viticultural causes of ATA. 8.7 Prevention 8.8 Treatments 8.9 Final reflections CHAPTER 9 Fermentation in bottle 9.1 Introduction 9.2 Sensory detection 9.3 Alcoholic fermentation in bottle 9.4 Malolactic fermentation (MLF) in bottle. 9.5 Prevention – preparing wine for bottling and the bottling process 9.6 Treatment 9.7 Final reflections CHAPTER 10 Hazes 10.1 Introduction 10.2 Protein haze 10.3 Microbial hazes 10.4 Metal hazes CHAPTER 11 Lactic acid bacteria related faults 11.1 Introduction to lactic acid bacteria 11.2 Lactic acid bacteria and their natural sources 11.3 Malolactic fermentation (MLF) 11.4 Undesirable aromas, off-flavours and wine spoilage caused by Lactic Acid Bacteria 11.5 Prevention of lactic acid bacteria related faults 11.5 Analysis 11.6 Final reflections CHAPTER 12 Smoke taint and other airborne contaminations 12.1 Introduction 12.2 Smoke taint compounds in the atmosphere 12.3 Critical times in the growing season and duration of exposure for smoke taint to impact 12.4 The volatile phenols responsible for smoke taint; their odours and flavours and sensory detection thresholds 12.5 Smoke taint in wines 12.6 Other sources of guaiacol and 4-methyl-gauaiacol in wines 12.7 Laboratory Testing 12.8 Prevention of development of smoke related volatile phenols from affected grapes 12.9 Treatments. 12.10 Other airborne contaminations 12.11 Final reflections CHAPTER 13 Ladybeetle and brown marmorated stink bug taints 13.1 Introduction 13.2 Methoxypyrazines 13.3 Ladybeetles (also known as ladybirds and ladybugs) 13.4 Brown marmorated stink bug (Halyomorpha halys) taint 13.5 Final reflections CHAPTER 14 Sundry faults, contaminants, including undesirable compounds from a health perspective and flaws due to poor balance 14.1 Mycotoxins, particularly Ochratoxin A 14.2 Dibutyl phthalate and other phthalates 14.3 Ethyl Carbamate 14.4 Biogenic amines 14.5 Ethyl sorbate and sorbyl alcohol (geraniol) off-odours 14.6 Paper-taste 14.7 Plastic taints – styrene 14.8 Indole 14.9 Geosmin 14.10 2-bromo-4-methylphenol – iodine, oyster taste 14.11 Heat damage 14.12 Matters of balance 14.13 Final reflections CHAPTER 15 Faults or not? TDN and tartrate crystals 15.2 Tartrate deposits 15.3 Final reflections CHAPTER 16 Must correction, wine correction and alcohol reduction using membrane technologies 16.1 Introduction 16.2 Membrane processes used in the wine industry 16.3 Clarification 16.4.3 Cross-flow micro filtration 16.5 Membrane Fouling 16.6 Must correction, wine correction and alcohol reduction using membrane technologies. 16.7 Fault correction 16.8 Wine stabilisation and pH adjustment by electrodialysis 16.9 Final redlections CHAPTER 17 The impact of container and closure upon wine faults 17.1 Introduction 17.2 Glass bottles 17.3 Bottle closures 17.4 The maintenance of adequate fee and molecular SO2 in bottled wine. 17.5 Natural Cork 17.6 Technical corks, including agglomerated corks 17.7 Diam cork closure 17.8 Synthetic closures 17.9 Screwcaps 17.10 VINOLOK 17.11 Some advantages and disadvantages of various closure types 17.12 The bottling operation 17.12 PET bottles. 17.13 Cans 17.14 Bag-in-box 17.15 Final reflections CHAPTER 18 Best practice for fault and flaw prevention 18.1 The wine industry 18.2 HACCP 18.3 Standard operating procedures (SOPs) 18.4 Traceability 18.5 Winery design 18.6 Cleaning and sanitation 18.7 Good practice winemaking procedures to avoid spoilage, faults and flaws. 18.8 The use of oenological additions and processing aids 18.9 Routine wine analysis 18.10 Final, final reflections References APENDIX BIBLIOGRAPHY GLOSSARY USEFUL WEBSITES

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ABOUT THE AUTHOR Keith Grainger is a wine writer, educator and consultant in wines and wine technology. His last book Wine Production and Quality, 2nd Edition (with co‑author Hazel Tattersall) won the Gourmand Award for the Best Wine Book for Professionals in 25 Years.

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