Warehousing method for fresh-keeping of rice

Abstract

The invention relates to a warehousing method for fresh-keeping of rice. The warehousing method comprises following steps of: (1) constructing or reconstructing a grain depot in the shape of a cuboid, arranging sealing windows at upper potions of walls on four sides and arranging heat-preservation and thermal insulation material inside of walls, wherein the areas of the sealing windows are 10 to 25% of those of walls; (b) arranging a cooling device, a ventilating device, a temperature self-control device, a humidity self-control device into the grain depot; and (c) laying a layer of calcium oxide on the ground of the grain depot and laying a PVC thin film on calcium oxide, drying paddy or rice with moisture content less than 15% by utilizing sunlight and packaging paddy or rice to be piled on the PVC thin film, adding repellents and utilizing the PVC thin film to wrap up pockets, controlling temperature of the grain depot within the range of 10 to 15 DEG C and keeping relative humidity of the grain depot within the range of 30% to 50% for storage, decreasing oxygen-bearing content within the range of 4v% to 10v% after 20 to 30 days till ex-warehouse processing is performed. The warehousing method for fresh-keeping of rice has following beneficial effects: neither rice worms nor moulds can be produced from rice or paddy insulated by the PVC thin film; storage time of rice or paddy can be prolonged; and nutrition and mouth feel can be maintained.

Description

technical field [0001] The invention belongs to the field of grains and relates to a storage method, in particular to a storage method for keeping rice fresh. Background technique [0002] Rice is an indispensable food for people's three meals a day. Rice contains about 75% carbohydrates, 7%-8% protein, 1.3%-1.8% fat, and is rich in B vitamins. The carbohydrates in rice are mainly starch, and the protein contained is mainly rice glutenin, followed by rice gelatin and globulin. High, digestibility 66.8%~83.1%, also is a kind of higher in cereal protein. [0003] my country's rice has its unique advantages and occupies an important position in the domestic and foreign markets. For a long time, my country’s rating and pricing standards in the process of rice purchase, storage and circulation mainly include roughness rate, polished rice rate, yellow-grained rice, impurities, moisture, color and smell, etc., but these indicators are not enough to reflect consumers’ concerns. In...

AI Technical Summary

Problems solved by technology

Due to the lack of effective rice storage methods, at present, a large amount of rice with good eating quality has mildew, insects, aging and other phenomena every year in China, causing huge losses