Method for preparing food grade corn starch by new corn soaking process
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A technology of soaking cornstarch and corn, which is applied in the field of agricultural product processing, can solve the problems of endangering health, inability to eat directly, increasing production costs, etc., and achieve the effect of saving procedures
Inactive Publication Date: 2019-07-12
ANHUI BBCA FERMENTATION TECH ENG RES
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Problems solved by technology
However, sulfurous acid is added in the process of wet extraction of corn starch, and the SO 2 Great environmental pollution, serious harm to people's health
Not only that, due to the SO in the products produced by it 2 The residue is high, whic
Method used
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Embodiment 1
[0030] The invention provides a method for preparing food-grade cornstarch by a new process of soaking corn, and the specific steps are as follows:
[0031] (1) Screen the corn without mildew, weigh 100g of corn after removing impurities, put it in a beaker, add 100mL of tap water, shake for about 2min, after washing, remove the washing water, and repeat washing 3 times in the same way;
[0032] (2) Transfer the cleaned corn to a 500mL ground-mouth bottle, immerse in a citric acid aqueous solution with a mass concentration of 1.0%, soak for 48 hours at a constant temperature of 50°C in a closed environment, filter with filter paper, and separate corn and steeping liquid;
[0033] (3) Pour the corn obtained in step (2) into a wall breaker, add about 225mL of tap water, and crush to obtain corn slurry; put the corn slurry in a 500mL beaker, take out the upper corn germ with a colander, and then Stir the corn slurry with a glass rod until the germ is suspended, then take out the...
Embodiment 2
[0038] Compared with Example 1, the only difference is that the citric acid aqueous solution is replaced by an aqueous malic acid solution with a mass concentration of 1.0%.
[0039]After calculation, the yield of dried germ in the present embodiment is 3.85%.
Embodiment 3
[0041] Compared with Example 1, the only difference is that the citric acid aqueous solution is replaced by an aqueous lactic acid solution with a mass concentration of 1.0%.
[0042] After calculation, the yield of dried germ in the present embodiment is 3.77%.
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Abstract
The invention relates to a method for preparing food grade corn starch by a new corn soaking process. The method comprises the following steps: soaking corn in an aqueous organic acid solution havinga mass concentration of 0.01-5.0%, and processing the soaked corn to form the corn starch. The organic acid which replaces SO2 in the traditional process is used to soak the corn, and achieves the same soaking effect with the traditional soaking process, and the obtained product has no SO2 residue, and does not need SO2 treatment, so the process is saved, and the method is green and environmentally friendly. The soaked corn can be directly processed to form the edible corn starch. The corn starch prepared by the method can be used for food thickening, seasonings, baked foods, jellies and frozen foods as a thickener and a stabilizer, can be used for producing salad foods and starch milk as an emulsifier, can be applied to production of sugar for food sweeteners, can be used to produce instant rice noodles, can be used for brewing beer, and also can be used as an auxiliary material to assist drug therapy in the field of drugs.
Description
technical field [0001] The invention relates to the field of agricultural product processing, in particular to a method for preparing food-grade cornstarch by a new corn soaking process. Background technique [0002] China is the world's second largest corn producer and also the world's second largest consumer. Corn, which was once limited to food and feed as the main consumption, has undergone tremendous changes. In addition to the steady growth of feed consumption, the corn deep processing industry has grown rapidly in recent years. develop. Corn is the most suitable variety of industrial raw materials among the three major food crops, and it is also the most processed food crop. The corn processing industry is characterized by large processing space, long industrial chain, and extremely rich products, including eight series of starch, starch sugar, modified starch, alcohol, enzyme preparation, condiment, medicine, and chemical industry, but mainly starch and alcohol. Mo...
Claims
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Application Information
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