Corn germ pretreatment processing technology to eliminate mycotoxin in corn oil
A technology of mycotoxins and processing technology, which is applied in the direction of fat oil/fat production, fat oil/fat refining, fat production, etc., can solve the problems of corn oil safety hazards, mycotoxins that have not been introduced, and corn oil mycotoxins exceed the standard, so as to reduce refining Loss, improvement of sanitation quality, and small investment in technical transformation
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Embodiment 1
[0013] Airtight ozone fumigation is carried out in the storage bin before the corn germ leaves the warehouse. The ambient temperature is controlled at 25°C, and the water content of the corn germ is 12%. Under this condition, ozone gas is introduced for sterilization and mycotoxin pre-degradation treatment. ppm, processing time 0.5 h. The corn germ after being out of the warehouse is cleaned and removed, softened and prepared, and rolled, and then mixed with a sodium hydroxide solution with a concentration of 15% (w / w). For puffing treatment, the minimum amount of sodium hydroxide solution is determined by the mycotoxin content in corn germ, and the maximum amount of sodium hydroxide solution is calculated according to the acid value of corn oil in corn germ.
[0014] Compared with corn oil prepared from corn germ treated by the above process, the acid value and color of corn oil are significantly reduced, and aflatoxin B 1 The content can be reduced by 70% to 90%, the conten...
Embodiment 2
[0016] Before the corn germs leave the warehouse, carry out airtight ozone fumigation in the storage warehouse. The ambient temperature is controlled at 50°C, and the water content of the corn germs is 7%. ppm, processing time 24 h. The corn germ after being out of the warehouse is cleaned and removed from impurities, softened and prepared, rolled, and mixed with potassium hydroxide solution with a concentration of 5% (w / w). For puffing treatment, the minimum amount of potassium hydroxide solution added is determined by the mycotoxin content in corn germ, and the maximum amount of potassium hydroxide solution is calculated according to the acid value of corn oil in corn germ.
[0017] Compared with corn oil prepared from corn germ treated by the above process, the acid value and color of corn oil are significantly reduced, and aflatoxin B 1 The content can be reduced by 65% to 85%, the content of zearalenone can be reduced by 75% to 90%, and the content of mycotoxin meets t...
Embodiment 3
[0019] Airtight ozone fumigation is carried out in the storage bin before the corn germ leaves the warehouse. The ambient temperature is controlled at 5°C, and the water content of the corn germ is 25%. ppm, the processing time is 48 h. After the corn germs out of the warehouse are cleaned and removed, softened and prepared, rolled and rolled, they are processed in the twin-screw extrusion extruder by alkali method, that is, the content of sodium hydroxide is 30% (w / w) alkali vapor, the minimum addition amount of alkali vapor is determined by the mycotoxin content in corn germ, and the maximum addition amount of alkali vapor is calculated according to the acid value of corn oil in corn germ.
[0020] Compared with corn oil prepared from corn germ treated by the above process, the acid value and color of corn oil are significantly reduced; the content of aflatoxin can be reduced by 70% to 90%. , the content of zearalenone can be reduced by 75% to 99%, and the content of mycot...
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