Ultrafiltration cleaning of enzyme

Abstract

The invention discloses an ultrafilter washing enzyme and manufacturing method to improve permeabile content through ultrafilter washing enzyme, which is composed of ultrafilter enzyme 1# and 3#, pectase, cellulose enzyme, xylanase, beta-glucanase, beta-glucosidase. The making method comprises the following steps: washing through alkalin; adding 1000-3000ppm / t ultrafilter enzyme 1# and 500-1000ppm / t amylase in the circulating system to circulate 30-60 min; washing through alkali again; adding 1000-3000ppm / t ultrafilter enzyme 3# in the system to circulate 30-60 min; separating retention material on the film surface; improving the effect of chemical abluent; improving membrane permeability.

Description

technical field [0001] The invention belongs to the technical field of agricultural product processing and relates to the fruit and vegetable juice processing industry, in particular to an ultrafiltration cleaning enzyme preparation used in concentrated fruit and vegetable juice and a preparation method thereof. Background technique [0002] After 20 years of development in our country, the concentrated fruit and vegetable juice industry has grown from scratch, and now it has become an agricultural product processing industry that has attracted a lot of attention from abroad. It can be said that the industry has entered a relatively healthy and mature period. [0003] Among the concentrated fruit and vegetable juices, concentrated apple juice is particularly concerned. It is made of apples after squeezing and concentrating. Because of its mild and sweet taste, it is mainly used as the basic ingredient of beverages. 90% of foreign beverage manufacturers Concentrated apple ju...

AI Technical Summary

Problems solved by technology

[0012] Although the above-mentioned different cleaning methods are introduced, the ultrafiltration membrane clogging occurs in different degrees in various fruit juice factories every year during the pressing season, and the membrane processing capacity is reduced, which affects the overall production capacity of the factory. We also found in production practice that due to the current The "second squeeze" process used in both resulted in subtle changes in the components of the juice, which caused problems in the subsequent membrane concentration process.

The flux of the membrane decays too fast, and the processing capacity is obviously reduced. Simply using conventional physical and chemical cleaning methods cannot completely restore the membrane.

The membrane will be put into the next use without recovery, and the pollution of the membrane will be aggravated over time. Repeated accumulation and clogging of attachments will cause irreversible pollution to the membrane, resulting in permanent loss of the processing capacity of the membrane.