一种基于葡萄内生菌的混合发酵方法

By using a co-fermentation method involving the endophytic fungus Alternaria sp. MG1 and the yeast CECA, the problem of homogenization in wine flavor has been solved, and the quality and diversity of wine have been improved. In particular, by increasing the aroma-characteristic substances such as acetates, fatty acid ethyl esters and aromatic alcohols, reducing undesirable flavor substances, and producing new anthocyanins, the aroma, color and taste of wine have been improved.

CN117801902BActive Publication Date: 2026-07-17NORTHWEST A & F UNIV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NORTHWEST A & F UNIV
Filing Date
2024-01-04
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The lack of existing technologies for mixed fermentation methods that utilize non-yeast-dominant fungi to improve wine quality has led to severe homogenization of wine flavors, affecting the diversity and quality of wines.

Method used

A mixed fermentation method using grape endophytic fungus Alternaria sp. MG1 and wine yeast CECA was adopted. Through a low-temperature maceration and peeling fermentation process, the metabolic characteristics of MG1 interact with wine yeast to improve fermentation efficiency and product quality, increase the aroma characteristics of acetate esters, fatty acid ethyl esters and aromatic alcohols, reduce undesirable flavor substances, and produce new anthocyanins.

Benefits of technology

It significantly improves the quality of wine, enhances fruit, floral and rose aromas, reduces undesirable flavors, improves the antioxidant properties and color stability of wine, increases the content of total polyphenols, flavanols, flavonols and anthocyanins, and improves the aroma, color and taste of wine.

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Abstract

本发明涉及葡萄酒酿造技术领域,具体公开了一种基于葡萄内生菌的混合发酵方法,通过葡萄除梗破碎,低温浸渍得葡萄汁,接种菌株MG1和酿酒酵母CECA进行发酵获得葡萄酒。本发明通过MG1和酿酒酵母CECA混合发酵制备得到的葡萄酒中乙酸酯类、脂肪酸乙酯类和芳香醇类香味特征物质显著提升,其中,乙酸乙酯、乙酸异戊酯、辛酸乙酯、己酸乙酯、9‑癸烯酸乙酯和苯乙醇的含量均显著提升,其他酯类中乙酸苯乙酯含量显著提升,不良风味物质4‑乙烯基愈创木酚含量显著降低;发酵所得葡萄酒中还产生了四种新的花青素,从而提升了葡萄酒的品质和风味。
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