Processing method of deproteinized rice
A processing method and deproteinization technology, applied in the field of bioengineering, can solve the problems of incomplete deproteinization, high cost, lack of natural rice taste, etc., achieve good taste and flavor, improve product quality, and strengthen the effect of deproteinization
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Embodiment 1
[0026] Natural high-quality rice is washed with drinking water, drained, and then the first enzymolysis and fermentation: In the reaction tank, add rice, purified water, alkaline protease, Lactobacillus delbrueckii (L.delbrueckii), rice and The mass ratio of purified water is 1:10, the reaction temperature is 45°C, the reaction time is 20 hours, and the initial pH is 7.0. The amount of alkaline protease added is 1% of the weight of raw rice, and Lactobacillus delbrueckii (L.delbrueckii) is added 10% per ton of reaction solution. 12 The number of bacteria was added to the reaction solution.
[0027] After the first enzymatic hydrolysis and fermentation, drain, wash, and vacuum-dry at 95°C until the water content is 9%, the protein content in the deproteinized rice can be reduced from 7.5% to 1.9%, and the protein removal rate in rice is 75%. %.
Embodiment 2
[0029] Wash the natural high-quality rice with drinking water, drain it, and then carry out the first enzymolysis and fermentation: in the reaction tank, add rice, purified water, neutral protease, Lactobacillus bulgaricus in proportion, and the mass ratio of rice to purified water is 1:15, the reaction temperature is 41°C, the reaction time is 10 hours, and the initial pH is 7.0. The amount of neutral protease added is 1.5% of the weight of raw rice; Lactobacillus bulgaricus is added 3×10 12 The number of bacteria was added to the reaction solution.
[0030] After the first enzymolysis and fermentation, drain, wash, and then carry out the second enzymolysis and fermentation: add rice, purified water, papain, thermophilic lactic acid streptococcus (S .thermophilus) for the second treatment, the mass ratio of rice to purified water is 1:12, the reaction temperature is 45°C, the reaction time is 16 hours, the initial pH is 6.5, and the amount of papain is 1.5% of the weight of ...
Embodiment 3
[0032]Natural high-quality rice is washed with citric acid water with a concentration of 0.5% by mass, drained, and then the first enzymolysis and fermentation: in the reaction tank, add rice, purified water, papain, Lactobacillus plantarum (Lactobacillus plantarum) in proportion ), the mass ratio of rice to purified water was 1:8, the reaction temperature was 30°C, the reaction time was 18 hours, and the initial pH was 6.0. The amount of papain added is 2.5% of the weight of raw rice, and Lactobacillus plantarum is added 4×10 per ton of reaction solution. 12 The number of bacteria is added to the reaction solution, and intermittent ventilation can be performed during the fermentation process. The ventilation rate is 0.5 cubic air per minute per ton of reaction solution. Lactobacillus plantarum is a facultative aerobic bacteria. Proper ventilation can be beneficial to growth and improve facultative Effects of aerobic lactic acid bacteria on cell proliferation and fermentation....
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