Method for preparing natural preservative and insect-prevention freshness-retaining agent for castanea mollissina

Abstract

The invention discloses a natural preservative and insect-prevention freshness-retaining agent for castanea mollissina and a preparation method of the natural preservative and insect-prevention freshness-retaining agent. The natural preservative and insect-prevention freshness-retaining agent for the castanea mollissina is prepared by adopting the following technical formula, respectively weighing 1-6 percent of tea polyphenol, 1-3 percent of propyl gallate, 1-8 percent of chitosan, 3-10 percent of acetic acid, 1-5 percent of cane sugar and 1-5 percent of sodium lactate and dissolving the raw materials into the balance of water. The freshness-retaining agent system is stable, easy to store, safe, non-toxic, easy to operate, high in preservative and insect-prevention sterilization property, long in refreshing time and good in moisturizing effect.

Description

technical field [0001] The invention belongs to the field of food fresh-keeping agents, in particular to a chestnut natural anti-corrosion and insect-proof fresh-keeping agent and a preparation method thereof. Background technique [0002] Chestnut is rich in nutrition, unique in flavor, and has a variety of eating methods, so it is very popular among people. However, for southern chestnuts, the water content is high, the temperature is high during the harvest period, the humidity is high, and the storability is poor. During storage, it is easy to germinate, rot, air-dry, infested with insects and black hearts, resulting in loss of fresh fruit and decline in quality after harvest. Although there are many storage methods for chestnuts, there are mainly sand storage methods, cylinder storage methods, bran storage methods, dilute acetic acid or dilute salt water immersion storage methods, etc., which are complicated and have poor results; low-temperature refrigeration methods,...

AI Technical Summary

Problems solved by technology

However, for southern chestnuts, the water content is high, the temperature is high during the harvest period, the humidity is high, and the storability is poor. During storage, it is easy to germinate, rot, air-dry, infested with insects and black hearts, resulting in loss of fresh fruit and decline in quality after harvest.

Although there are many storage methods for chestnuts, there are mainly sand storage methods, cylinder storage methods, bran storage methods, dilute acetic acid or dilute brine immersion storage methods, etc., which are complicated and have poor results; low-temperature refrigeration methods, controlled atmosphere methods, etc. require large investment and complicated operations. , severely restricting household production

The antistaling agent developed in recent years, as described in CN99115342.1, has high chemical toxicity and brings great threat to people's life safety