Vitamins in wine: Which, what for, and how much?

Area of Science:

• * Enology and Microbiology: Focuses on the role of essential micronutrients in yeast physiology and wine production.

Background:

• * Vitamins are vital for yeast metabolic pathways, influencing amino acid, fatty acid, and alcohol production.
• * Their significant impact on winemaking and wine quality remains understudied due to limitations in past analytical techniques.

Purpose of the Study:

• * To provide a comprehensive review of current knowledge on vitamin impacts in grape must fermentation.
• * To assess vitamin requirements for wine yeasts and their influence on wine's sensory characteristics.
• * To examine analytical methodologies for vitamin determination in wine.

Main Methods:

• * Literature review synthesizing existing research on vitamins in winemaking.
• * Analysis of historical and modern techniques for vitamin quantification in wine matrices.
• * Assessment of the link between vitamin levels, yeast metabolism, and wine sensory attributes.

Main Results:

• * Vitamins significantly affect yeast fermentation kinetics and the development of aromatic compounds in wine.
• * Current analytical methods allow for more precise measurement of vitamin concentrations in wine.
• * Understanding vitamin roles can lead to improved control over fermentation and wine quality.

Conclusions:

• * Vitamins play a critical, yet often overlooked, role in winemaking processes.
• * Advanced analytical techniques are essential for precise vitamin assessment in complex wine matrices.
• * Further research into vitamin impacts will enable finer control over fermentation and enhance wine sensory profiles.