Litchi and longan antistaling agent and methods of use

Abstract

The present invention discloses one kind of lichi and longan preservative with high preserving effect, no toxicity, no environmental pollution and low cost and suitable for industrial production. The preservative consists of queensland arrowroot powder and bisulfite, pyrosulfite or dithionite capable of releasing SO2 when reacting with water and air. When the preservative is used, it is packed into non-woven polypropylene pocket, the pocket is set inside non-woven polypropylene bag for holding lichi or longan, and the bag is sealed and set into some packing box, with the amount of the preservative being 3.1-8.6 % of the weight of lichi or longan.

Description

technical field

[0001] The invention relates to a preservative for litchi and longan and its application method. Background technique

[0002] Along with the raising of people's living standard, melon and fruit have become requisite food in people's daily life, especially the treasure in the fresh fruit of four seasons, as litchi, longan are subjected to people's favor especially. But longan and lychee will brown and change qualitatively in a short period of time under normal temperature environment after its maturity is picked, and its fresh-keeping condition is very harsh, thereby its market time is very short. At present, people generally use chemical drugs or sulfur treatment to keep litchi and longan fresh. The fresh-keeping effect is not good, it is poisonous to the human body, pollutes the environment, affects the taste of the fruit, and it has a large investment and high cost when used, and is not suitable for industrialization. Production. ...