The Chemistry and Biology of Winemaking

Someone once said that 'wine is a mixture of chemistry, biology and psychology'. It has certainly fascinated people over the centuries and without a doubt been enjoyed by many. Indeed, from its serendipitous roots as an attempt to store fruit, wine has been woven into the fabric of society; from its use in religion to today's sophisticated products sampled over a meal. The Chemistry and Biology of Winemaking not only discusses the science of winemaking but also aims to provide the reader with a wider appreciation of the impact of oenology on human society. Beginning with a history of wine the book discusses a wide range of topics, with particular emphasis on the organisms involved. Starting with the role of yeast in fermentation, it goes on to discuss so-called 'killer yeasts', lactic acid bacteria and the role that genetically modified organisms may have in the future. This book is ideal for anyone interested in the process of winemaking and will be of particular use for those with an interest in the chemical and biological sciences.

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A thorough work...resembles most closely a textbook in terms of style and readability. Overall, I was pretty impressed by this book, and in particular in the historical context to modern winemaking which Hornsey provides. I can't think of many competing books around the same price that do as good a job. -- Chemistry World, December 2007, 67 (Jamie Goode) Chemistry World "The book is written in an easy-to-read style and would suit undergraduate and other students training in the area of oenology. Likewise, any reader interested in gaining a deeper understanding of, in particular, the biology of winemaking, will appreciate this book. I thoroughly enjoyed reading this book, well done Ian Hornsey." -- ChemBioChem, 2007, 8, 2315-2316 ChemBioChem

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Preface/Introduction; Chapter 1: The History of Wine; Prehistory; Dissemination of viticulture; Early chemical evidence for wine; The Holy Land; Egypt; Greece; The Romans; Post-Roman Europe; The New World; References; Chapter 2: The Vine; Origins, taxonomy and biogeopgraphy of the grapevine; Prehistoric evidence for Vitis; Differences between muscadine grapes and 'true' grapes; Differences between wild and domesticated Vitis; The structure and maturation of the grape; Berry structure; Development of the berry; Flavour and aroma compounds in the mature grape; Grape-derived phenolics; References; Chapter 3: The Yeast and Fermentation; The Yeast; Taxonomy; Cell Structure; Fermentation; Initiation; Pattern of ferm'n; Ferm'n biochemistry; Temperature considerations; Completion of ferm'n; Starter cultures; Temperature control; References; Chapter 4: Winemaking Processes; Red wines; Time of harvest; Harvesting; Crushing; Fermentation; The 'autofermenter'; White wines; [white wine styles]; Harvesting; Crushing; Pressing; Settling/clarification; Fermentation; Sparkling wines; Champagne method; Tank method; Transfer method; Carbonation; Cold maceration; Carbonic Maceration; Thermovinification; Chaptalisation; Use of commercial enzymes; References; Chapter 5: Lactic Acid Bacteria and Malo-lactic Fermentation; Lactic acid bacteria; Synopsis; Sugar metabolism; Some aspects of their unusual metabolism; Potential problems for the winemaker; Malo-lactic fermentation; Urethane and arginine metabolism; Bacteriophages; Chapter 6: Clarification, Stabilisation and Preservation; Clarification; Proteins; Gelatin; Isinglass; Albumen; Casein; PVPP; Bentonite; Tartaric acid, tartrates, and wine stability; Static cold-stabilisation; Contact cold-stabilisation; Ion-exchange stabilisation; Estimation of cold stability; Prevention of crystallisation; Protein instability; Assessment; Preservation; SO2; DMDC; Sorbic acid; Benzoic acid; References; Chapter 7: Maturation and Ageing; Introduction; Sur lie storage of wine; Oak and wine; Maturation reactions in red wine; Micro-oxygenation; Corks; References; Chapter 8: Fortified Wines; Introduction; Fortification; Port; VDN; Madeira; Sherry; Commandaria; References; Chapter 9: Other Organisms Important in Oenology; Killer yeasts; Brettanomyces; Botrytis cinerea; References; Chapter 10: Pests and Diseases; Phylloxera; Fungal diseases of the vine; Downy mildew; Powdery mildew; Black rot; Dead-arm; Anthracnose; Bacterial diseases of the vine; PD; Crown gall; Viruses; Fanleaf; Leafroll; References; Appendix I; Appendix II

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