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A processing method and rice technology, applied in the fields of food processing and grain processing, can solve the problem of high power consumption per ton of rice, and achieve the effects of reducing storage costs, insect-proof storage costs, and improving economic benefits.
Active Publication Date: 2016-12-21
WUHAN POLYTECHNIC UNIVERSITY
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Problems solved by technology
Therefore, in the processing of rice, it is easy to produce broken rice, and the power consumption per ton of rice is also high
Method used
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[0019] (1) According to the existing conventional method, select the paddy that has just been harvested and has a moisture content between 25% and 26%.
[0020] (2) Cleaning, grading, and impurity removal are carried out to the paddy according to existing conventional methods to become clean and fresh paddy.
[0021] (3) Put the net fresh grain into a batch dryer with a volume of 30 tons, and use hot air at 50°C to 65°C to dry the rice in the dryer, and control the temperature of the grain in the machine to be less than 38°C. The precipitation rate is between 0.6% and 1.1%. The clean and fresh grains are circulated and dried in the dryer, and the moisture value of the clean and fresh grains is detected online. When the moisture value detected online is greater than 18%, repeat the above cycle drying process; when the moisture value detected online is less than or equal to 18%, control the temperature of t...
[0027] (1) Transport the rice with a moisture content of 15% to 16% from the warehouse to the rice processing workshop according to a conventional method.
[0028] (2) Cleaning, grading, husking, separating paddy and whitening the rice according to conventional methods to obtain raw rice.
[0029] (3) Put the raw rice into the dryer, and carry out circulation drying according to the fresh-keeping and drying process of raw rice, so that the moisture content of the raw rice is between 12% and 12.5%.
[0030] (4) Cool the gross rice, control the ventilation temperature in the cool rice warehouse at 5°C to 30°C, and the ventilation rate per ton of gross rice at 30m 3 / h~60m 3 / h, cold rice time is 20 to 40 hours.
[0031] (5) According to conventional methods, sorting, selecting, color sorting, polishing, measuring and packaging are carried out, which is the product.
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Abstract
The invention discloses a rice fresh-keeping processing method. The method comprises the following technical points: within 48 hours, fresh harvested rice is dried until moisture is 15-16%; precipitation speed for each hour is controlled to be 0.3-0.8%, and hot air temperature is controlled to be 40-60 DEG C; rice with 15-16% moisture is temporarily stored in a grain bin with a ventilation system; during the temporary storage period, fresh air is introduced into the bin each day, and daily ventilation quantity per each ton of rice is 50-200 m<3>; as for fresh-keeping processing, brown rice is prepared from the rice with 15-16% moisture, polished rice is prepared by 3-6 treatments of emery-roll polishing of the brown rice, and the polished rice is preserved and dried to make moisture of the polished rice to be maintained at 12-12.5%; and the dried polished rice undergoes finishing, grading, vacuum packing, warehousing for temporary storage and circulation in the market. The invention has the following beneficial effects: the method is beneficial to mildew proofing and insect prevention of rice and reduction of storage cost, helps prolong shelf life of rice, and helps increase economic benefit of rice processing enterprises and added value of rice.
Description
[0001] The invention relates to the technical field of food processing, in particular to the technical field of grain processing, in particular to a fresh-keeping processing method for rice. Background technique [0002] At present, my country's rice production and consumption mainly adopt the model of rice circulation. After the rice is harvested, it is dried, and then put into the warehouse for storage or temporary storage, and then out of the warehouse to be processed into rice, and then enter the market for circulation and consumption. When rice is stored in storage for more than one year, the safe moisture content of paddy storage is 13.5% to 14.5%; the safe moisture content of paddy temporary storage is about 15%. However, when the rice is processed out of the warehouse, the optimum processing moisture is about 16%. Therefore, there is a problem that the storage moisture of paddy and the processing moisture of paddy do not match. In addition, the optimum storage moistu...
Claims
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Application Information
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