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5、d and animal feeding stuffs General requirements and guidance for microbiological examinations ( . ) ISO 8261 Milk and milk products General guidance for the preparation of tests samples, initial suspensions and decimal dilutions for microbiological examination ( . , ) ISO/TS 11133 ( ) Microbiology
6、of food and animal feeding stuffs - Guidelines on preparation and production of culture media ( . ) ISO 21527-1 Microbiology of food and animal feeding stuffs -Horizontal method for the enumeration of yeasts and moulds - Part 1: Colony count technique in products with water activity greater than 0,9
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9、2 5.2.1.2.1 , , . pH , (5,6 0,2) . pH 25 C. 10 31 % - ( ) . (6.5) . 121 C 15 . (6.3), 44 C 47 C. 50 C 15 3 (6.6). , ISO 7218, ISO/TS 11133 ( ). ISO/TS 11133 ( ). ! , . 5.2.1.2.2 - (, ), (50 /3) (50 /3). , , 50 , 100 3 . 0,1 % - ( ) ( , ) . 5 3 100 3 . , , , 1. 5.2.1.2.3 , , , DG18. , 1 3 1 3: ZnSO4
10、7H2O 1 ; CuSO4 5H2O 0,5 ; , 100 36. 5.2.1.3 5.2.1.3.1 DG18 . ISO/TS 11133-1 ISO/TS 11133-2 : 5.2.1.3.2 : (25 1) C. : Saccharomyces cerevisiae ATCC 9763; Wallemia sebi ATCC 42694; Aspergillus restrictus ATCC 42693; Eurotium rubrum ATCC 42690 , . : SDA (D- ), . : . : , PR 0,5._ 1) , , - .2) .3 ISO 21527-22013 : , . 5.2.1.3.1 : (25 1) C. : Escherichia coli ATCC 25922; Bacillus subtilis ATCC 6633 , .
