Handbook of Enology, Volume 2

As an applied science, Enology is a collection of knowledge from the fundamental sciences, including chemistry, biochemistry, microbiology, bioengineering, psychophysics, cognitive psychology, and more, all nourished by empirical observations. The approach used in the Handbook of Enology is thus the same. It aims to provide practitioners, winemakers, technicians, and enology students with foundational knowledge and the most recent research results. This knowledge can be used to contribute to a better definition of the quality of grapes and wine, a greater understanding of chemical and microbiological parameters, with the aim of ensuring satisfactory fermentations, predicting the evolution of wines, and better mastery of wine stabilization processes. As a result, the purpose of this publication is to guide readers in their thought processes with a view to preserving and optimizing the identity and taste of wine and its ageing potential.

This third English edition of The Handbook of Enology is an enhanced translation from the 7^th French 2017 edition and is published as a two-volume set describing aspects of winemaking using a detailed, scientific approach. The authors, who are highly respected enologists, examine winemaking processes, theorising what constitutes a perfect technique and the proper combination of components necessary to produce a quality vintage. They also illustrate methodologies of common problems, revealing the mechanism behind the disorder, thus enabling a diagnosis and solution.

Volume 2: The Chemistry of Wine and Stabilization and Treatments looks at the wine itself in two parts. Part One analyses the chemical makeup of wine, including organic acids, alcoholic, volatile and phenolic compounds, carbohydrates, and aromas. Part Two describes the procedures necessary to achieve a perfect wine: the clarification processes of fining, filtering, and centrifuging, stabilization, and ageing.

Coverage includes: Wine chemistry; Organic acids; Alcohols and other volatile products; Carbohydrates; Dry extract and mineral matter; Nitrogen substances; Phenolic compounds; The aroma of grape varieties; The chemical nature, origin and consequences of the main organoleptic defects; Stabilization and treatment of wines; The chemical nature, origin and consequences of the main organoleptic defects; The concept of clarity and colloidal phenomena; Clarification and stabilization treatments; Clarification of wines by filtration and centrifugation; The stabilization of wines by physical processes; The ageing of wines in vats and in barrels and ageing phenomena.

The target audience includes advanced viticulture and enology students, professors and researchers, and practising grape growers and vintners.