Corn germ pretreatment processing technology to eliminate mycotoxin in corn oil

Abstract

A corn germ pretreatment processing technology to eliminate mycotoxin in corn oil includes ozone fumigation of the corn germ, cleaning, impurity removal, modulation and softening, rolling, and alkali puffing. The ozone fumigation treatment is carried out in a closed chamber at a temperature of 5 DEG to 50 DEG C; ozone is introduced when the moisture content of corn germ is 7%-25% for ozone sterilization and mycotoxin pre-degradation for 0.5-48 h, wherein the ozone concentration is 5-50ppm. The alkali puffing is as below: adding alkali lye or steam with concentration of 5%-30% into the corn germ before corn puffing treatment or in the puffing process, wherein the addition amount is calculated by the content of mycotoxin in corn germ and the acid value of corn oil. The corn oil prepared from corn germ contains mycotoxins, such as aflatoxin B1 (AFB1) and zearalenone (ZEN), less than the national limit standard. The final product has the characteristics of low mycotoxin content, small acid value, light color, and little loss in refining.

Description

technical field

[0001] The invention relates to a corn germ pretreatment process, in particular to a corn germ pretreatment process for eliminating mycotoxins in corn oil. Background technique

[0002] Corn germ, also known as corn germ, is a by-product of corn deep processing, accounting for 10% to 15% of the mass of corn kernels, rich in fat, protein, minerals and other nutrients, of which crude fat accounts for 36% to 47%. It is an important oil resource. Corn oil, also known as corn germ oil, is the oil extracted from corn germ. Corn oil is rich in a variety of vitamins, minerals and a large amount of unsaturated fatty acids, mainly oleic acid and linoleic acid, which can lower serum cholesterol, prevent arteriosclerosis, and help prevent and treat "three highs" and complications effect. Because of its high nutritional value, good taste, and not easy to deteriorate, it is very popular among people. At the same time, my country is the main producer and consumer of cor...