GB/T 8612-1988 Soybeans for soy food industry

This standard applies to soybeans used in the soybean food industry. GB/T 8612-1988 Soybeans used in the soybean food industry GB/T8612-1988 Standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
Soybean for soybean food industry
Soybean for soybean an industry
This standard applies to soybean for soybean food industry. Technical conditions
GB/T 8612—88
1.1Soybean for soybean food industry is classified by the water-soluble protein content of net grain. The grade index and other quality indexes are shown in the table below. Water-soluble protein (dry basis)% "Impurities
Minimum index!
Classification "Cotyledon change||Spotted grains and moldy grainsInsect-damaged grains and broken grains" "Color [Color grain
≤1.0≤14.0
1.2Soybeans below grade 3 are out-of-grade soybeans, and out-of-grade soybeans are not used in the soybean food industry." Total broken grains
1.3Soybeans with detached seed coats, intact cotyledons, and seed coats with white cattails without damaging the cotyledons are all good grains. 1.4 The maximum limit of soybean cotyledon discoloration is 20%. Any grain exceeding 20% ​​shall not be used as raw material for soybean food. 1.5 Animal and plant quarantine items shall be implemented in accordance with relevant national regulations. 「Smell
「Normal
1.6 Hygiene standards are implemented in accordance with GB2715-81 "Food Hygiene Standards", GB2761-81 "Standards for the Allowable Amount of Aflatoxin B1 in Food", GB4790-84 "Hygiene Standards and Test Methods for Dibromoethane Residues in Food", GB4809-84 "Standards for the Allowable Amount of Fluoride in Food", and GB5127-85 "Hygiene Standards for the Allowable Remaining Amount of Dichlorvos, Dimethoate, Malathion, and Parathion in Food".
2 Glossary
2.1 Cotyledon discolored grains: After high-temperature baking, the cotyledons are visible to the naked eye as red to brown grains. 2.2 Moldy grains and diseased grains: According to the explanation of GB1352-86 "Soybean" on moldy grains and diseased grains 2.3 Broken kernels and worm-eaten kernels: follow the explanation of broken kernels and worm-eaten kernels in GB1352-86. 2.4 Impurities: follow the explanation of impurities in GB1352-86. 2.5 Color and odor: follow the explanation of color and odor in GB1352-86. 3 Inspection methods
3.1 Sampling
Follow GB5491-85 "Sampling and sub-sampling method for inspection of grains and oilseeds". 3.2 Water-soluble protein
Follow Appendix A "Determination of water-soluble protein in soybeans" in GB5511-85 "Determination of crude protein in grains and oilseeds". bZxz.net
3.3 Determination of impurities
Follow GB5494-85 "Determination of impurities in grains and oilseeds" 3.4 Moldy and broken grains
According to GB5494-85.
3.5 Moisture content determination
According to GB5497-85 "Method for determination of moisture in grain and oilseeds". 3.6 Color and odor identification
According to GB5492-85 "Method for identification of color, odor and taste in grain and oilseeds". 3.7 Determination of grains with discolored cotyledons
Randomly take complete soybean grains (excluding broken grains and grains with obvious insect damage) from the average sample after sampling. Spread 200 grains flat in a small plate, put in an oven, bake at 105℃ for 40 minutes, and take out. Cut along the seam of the cotyledons with a knife and count them. The cotyledons can be seen to turn light red with the naked eye. to brown grains. Number of grains with discolored cotyledons
Granules with discolored cotyledons (%) =
Total number of grains in the sample
The allowable error of the double test results shall not exceed 2% of the average value. The average value shall be taken as the measurement result and the measurement result shall be an integer. 4
Packaging, transportation and storage
The packaging, transportation and storage of soybeans must comply with the requirements of quality assurance, quantity assurance, transportation safety and classification and graded storage to prevent contamination.
Additional notes:
This standard was proposed by the Grain Storage and Transportation Bureau of the Ministry of Commerce. This standard was drafted by the Beijing Cereals, Oils and Food Inspection Institute. The main drafters of this standard are Li Zhigao, Wang Dong and Xie Zenghua. Approved by the Ministry of Commerce of the People's Republic of China on January 25, 1988 and implemented on July 1, 1988
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