Method for producing edible food package paper with bean peel as raw material

Abstract

The invention discloses a method for producing edible food packaging paper with soybean hull as a raw material. The method comprises the following steps: the soybean hulls are subject to superfine comminution, are treated by pressurization for 20 minutes to 2 hours under the pressure of between 130 and 320kPa, and are cooled; an enzymatic reaction is performed under the conditions that the mass concentration of soybean hull powder is between 1 and 25 percent, the mass ratio of cellulose to the soybean hull powder is between 0.1 to 1 and 10 to 1, the temperature is between 25 and 70 DEG C, and the rotating speed is between 50 and 350rpm; the reaction is terminated when the hydrolysis degree of the reaction reaches between 5 and 20 percent; a filtrate is vacuum concentrated and decolorized by hydrogen peroxide, and then a food thickener and a food plasticizer are added for stirring evenly; the ultrasonic degassing is performed for 30 to 120 minutes after the beating; the filtrate is placed into a mold for molding; and the edible food packaging paper is obtained through drying at a temperature of between 55 and 70 DEG C. The method has green raw material and chloride-free environment-friendly process, has no discharge of acid liquids or alkaline liquids, provides a new approach for the utilization of high added values of biomass resources, and also provides broad prospect for the development of special paper.

Description

technical field

[0001] The invention relates to food industry and pulping and papermaking technology, in particular to a production method for enzymatically decomposing soybean skin raw materials to prepare edible wrapping paper. Background technique

[0002] With the development of social economy and science and technology, the material living standards continue to improve, and people pay more and more attention to food safety issues. At present, the widely used plastic packaging materials and traditional packaging paper have shortcomings such as inedibility and easy production of certain toxic and harmful substances. demand has been unable to be met. Edible wrapping paper can not only be used for small-volume food packaging, single food packaging, direct contact with food, prevent food from being contaminated, and has the usual functions of food packaging materials, and some nutritional enhancers, flavoring agents, etc. can be added to its production. It has a certain nut...