Brewing technology for longan dry white wine

Abstract

The invention relates to a brewing technology for longan dry white wine, and belongs to the technical field of wine brewing. The brewing technology comprises the steps that grape ears with the sugar degree being not smaller than 190 g / L and the pH value being 3.0-3.3 are selected as raw materials, stalk removal, crushing, squeezing and clarification are performed to obtain clear grape juice, the clear grape juice is fermented to obtain longan dry white wine, then, lactic acid bacteria are inoculated to perform apple lactic fermentation, apple lactic fermentation is ended when the concentration of malic acid in an apple lactic fermentation solution is not larger than 2 g / L, the concentration of tartaric acid in the apple lactic fermentation solution is 6-7 g / L, and the pH value is 3.0-3.4, then, cooling separation and filtering are performed to obtain the finished longan dry white wine. According to the technology, the method that apple lactic fermentation is ended when a part of the malic acid is reserved is adopted; due to the fact that the small amount of malic acid is reserved, the sour taste of the longan dry white wine is avoided, and the fruit flavor is sufficiently reserved while the structural sense is enhanced.

Description

technical field [0001] The invention belongs to the technical field of wine brewing, and in particular relates to a longan dry white wine brewing process. Background technique [0002] Longan grape is one of the ancient varieties cultivated in China. The fruit of longan grape is purple or deep rose red, with thin and transparent skin and beautiful appearance. The fruit juice has high powdered sugar and high concentration. Very luscious, not only a good product for fresh food, but also the main raw material for brewing wine, but the longan dry white wine produced by the existing technology has insufficient aroma, high acidity, lack of coordination, and is easy to oxidize and not durable. White wine is rejected by a large part of consumers, so it is necessary to improve the technology of longan dry white wine, and finally make longan dry white wine that meets consumer tastes. Contents of the invention [0003] The present invention overcomes the shortcomings of the existing...

AI Technical Summary

Problems solved by technology

[0002] Longan grape is one of the ancient varieties cultivated in China. The fruit of longan grape is purple or deep rose red, with thin and transparent skin and beautiful appearance. The fruit juice has high powdered sugar and high concentration. Very luscious, not only a good product for fresh food, but also the main raw material for brewing wine, but the longan dry white wine produced by the existing technology has insufficient aroma, high acidity, lack of coordination, and is easy to oxidize and not durable. White wine is rejected by a large part of consumers, so it is necessary to improve the technology of longan dry white wine, and finally make longan dry white wine that meets consumer taste