Preparation method of fruit and vegetable preservation paper

Abstract

The present invention relates to the technical field of fruit preservation and particularly relates to a preparation method of fruit and vegetable preservation paper. An extract and water are mixed; the mixture is stirred evenly; tea polyphenols are added; the mixture is spray-dried to obtain a dried product; a main release agent and water are mixed; the mixture is heated; the dried product is added; the mixture is stirred; the stirred mixture is filtered using a Buchner funnel to obtain a filter residue; the filter residue is washed with water; the washed filter residue is dried; the dried filter residue is crushed to obtain a crushed material; the crushed material and a chitosan solution are mixed; magnetic powder is added; the mixture is subjected to ultrasonic emulsification; then glutaraldehyde is further added to conduct solidifying; then the solidified mixture is vacuum dried; the vacuum dried mixture is then crushed using a high-speed crusher to obtain powder for a standby application; soluble starch, potassium permanganate, sodium hydroxide and water are mixed; heating, stirring and cooling are conducted to obtain a stirring solution; polyvinyl alcohol, polyethylene glycoland the stirring material are mixed; heating and stirring are conducted to obtain a stirred and mixed solution; paper pulp, powder and the stirred and mixed solution are mixed; and stirring, pouringinto a beater bucket, pH value adjusting and drying are conducted to obtain the fruit and vegetable preservation paper.

Description

technical field [0001] The invention relates to the technical field of fruit and vegetable preservation, in particular to a preparation method of fruit and vegetable preservation paper. Background technique [0002] Fresh fruits and vegetables are fresh commodities with high water content. After harvesting, they still continue to carry out life activities such as respiration and transpiration. Without proper packaging and transportation conditions, they are easy to shrink and rot during circulation. Insurance technology can not only reduce product loss, but also greatly increase the added value of agricultural and sideline products. Packaging and other fresh-keeping technologies are very important means to improve the economic benefits of agricultural and sideline products, so fresh-keeping paper was born. [0003] Preservative paper is a utility model belonging to food packaging products. It uses chlorine dioxide strong oxidant as a preservative, adsorbs it on zeolite and ...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention: for the current fruit and vegetable fresh-keeping paper with SO 2 The release agent is the main ingredient, without taking slow-release and controlled-release technical measures, it is easy to cause sulfur dioxide to be released too quickly, resulting in fruit rot and corrosive effects on the human body. A preparation method for fruit and vegetable fresh-keeping paper is provided

Images