Preparation method of vitis amurensis whole-fruit fermentation product

Abstract

The invention relates to the technical field of food preparation and especially relates to a preparation method of a vitis amurensis whole-fruit fermentation product. The preparation method comprises the following steps: (1) crushing and grinding de-stemmed vitis amurensis to obtain vitis amurensis juice; (2) performing ultrasound treatment of the vitis amurensis juice; (3) fermenting the vitis amurensis juice; (4) filtrating and removing residues, namely performing filter press of the vitis amurensis juice fermented by lactic acid bacteria and removing the residues to obtain fermented vitis amurensis juice; (5) embrane concentrating, namely concentrating the fermented vitis amurensis juice by a reverse osmose membrane until the concentration is 25-30 Brix; and (6) vacuum freezing and drying, namely drying the concentrated fermented vitis amurensis juice until the mass percentage of the moisture content is 5-10%, so that the vitis amurensis whole-fruit fermentation product is obtained. The preparation method of the vitis amurensis whole-fruit fermentation product of the invention performs yeast fermentation and lactic acid bacteria fermentation according to the characteristics of the vitis amurensis, so that the vitis amurensis fermentation product prepared according to the preparation method has high activity, fully demonstrates value of the vitis amurensis, improves the benefit of the vitis amurensis, and promotes physical conditions of people who eat the vitis amurensis whole-fruit fermentation product.

Description

technical field [0001] The invention relates to the technical field of food preparation, in particular to a method for preparing fermented products of whole grapes. Background technique [0002] Fu'an grape is a specialty product of Fu'an City, Ningde City, Fujian Province, and is a product protected by the National Geographical Indication of Agricultural Products. Fuan has unique geographical conditions, and the grapes produced are of good performance. It is known as the "Hometown of Grapes in the South" and has become an important grape-producing area in southern my country. Fu'anshan grape is a grape variety produced in Fu'an. Its fresh fruit, juicy and sweet, neither sour nor astringent, is very popular. However, the fresh sales of mountain grapes are affected by seasons, storage and transportation, etc., and the market is limited; while making raisins and wines, it is difficult to give full play to the characteristics of mountain grapes and cannot compete with other gr...

AI Technical Summary

Problems solved by technology

However, the traditional production of fruit and vegetable enzymes usually only uses the microorganisms contained in them for anaerobic fermentation. The types of microorganisms are difficult to control, and the microorganisms that have beneficial effects on the human body are limited; live; also there is no preparation method of grape fermentation product in the prior art