Strawberry compound antistaling agent and preparation thereof

Abstract

The invention relates to a fruit rotproof and antistaling agent and a preparation method thereof, particularly relates to a compound strawberry antistaling agent and a preparation method thereof. The antistaling agent contains the ingredients of chitosan (weight percent: 0.75-1.5), ascorbic acid (weight percent: 1-2), phytic acid (volume percent: 0.3-0.9), clove bud (70 percent) ethanol extract (weight percent: 0.01-0.5), malaytea scurfpea fruit (70 percent) ethanol extract (weight percent: 0.01-0.5), fructus cnidii selinum fruit (70 percent) ethanol extract (weight percent: 0.01-0.5), and the rest is water. The preparation method includes that ascorbic acid is solved in the water; the chitosan is added into the ascorbic acid solution, then the phytic acid is added, and mixed evenly; and then the clove bud (70 percent) ethanol extract, the malaytea scurfpea fruit (70 percent) ethanol extract and the ructus cnidii selinum fruit (70 percent) ethanol extract are added successively. The antistaling agent can reduce the rotten rate and dehydration rate of the strawberries stored under normal temperature after collection, and prolong the shelf life.

Description

technical field [0001] The invention relates to a fruit antiseptic and preservative and a preparation method thereof, in particular to a strawberry composite preservative and a preparation method thereof. Background technique [0002] Strawberry is a berry fruit with vigorous breathing, soft and juicy fruit, and rich in nutrition. Because of its high water content and delicate tissues, it is extremely vulnerable to mechanical damage and microbial infection and decay. Under the condition of normal temperature, the fruit starts to change color and taste after 1d-2d (days), which makes it difficult to store and keep fresh. Therefore, prolonging the shelf life of strawberry fruit and maintaining its commodity value is an urgent problem to be solved in strawberry production and development. Strawberry preservation technologies at home and abroad are mainly divided into three categories: physical preservation (including low-temperature refrigeration, controlled atmosphere storag...

AI Technical Summary

Problems solved by technology

[0006] Although these pure natural antistaling agents have achieved certain effects in practice, they still have certain deficiencies when used alone, such as chitosan has a weaker inhibitory effect on phytopathogenic fungi, although Chinese herbal medicine preservatives can inhibit the growth of phytopathogenic fungi. Growth but no significant effect on the control of water loss rate. Phytic acid preservative has better antioxidant effect, but its water resistance is not as good as chitosan, and its antibacterial type is far less than that of Chinese herbal medicine extracts.