KS J ISO 17410-2007 Microbiology of food and animal feeding stuffs-Horizontal method for the enumeration of psychrotrophic microorganisms《食品和动物饲料的微生物学 适冷微生物记数水平方法》.pdf

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1、 KSKSKSKS KSKSKSK KSKSKS KSKSK KSKS KSK KS KS J ISO 17410 KS J ISO 17410 :2007 (2012 ) 2007 10 31 http:/www.kats.go.krKS J ISO 17410:2007 : ( ) ( ) () () () ( ) : (http:/www.standard.go.kr) : :2002 11 30 :2007 10 31 :2012 12 28 : 20120814 : ( 02-509-7270) (http:/www.kats.go.kr). 10 5 , . KS J ISO 17

2、410:2007 .1 1 1 2 1 3 .1 4 1 5 2 5.1 2 5.2 .2 (PCA) 6 3 6.1 .3 6.2 3 6.3 .3 6.4 .3 6.5 3 6.6 .3 6.7 .3 6.8 3 6.9 4 pH 6.10 .4 6.11 .4 7 .4 8 4 9 4 9.1 4 , 9.2 4 9.3 .5 10 .5 10.1 5 10.2 .5 10.3 .6 11 7 12 .7 8 i KS J ISO 17410:2007 (2012 ) Microbiology of food and animal feeding stuffsHorizontal met

3、hod for the enumeration of psychrotrophic microorganisms 2001 ISO 17410, Microbiology of food and animal feeding stuffs Horizontal method for the enumeration of psychrotrophic microorganisms , . ISO 17410 ISO/TC34 (SC9) . 1 6.5 . . 2 . . ( ) . KS H ISO 68871, , 10 1: 10 1)KS H ISO 7218, ISO 8261, Mi

4、lk and milk productsPreparation of samples and dilutions for microbiological examination 3 . 3.1 (psychrotrophic microorgansim) , 4 1) 2 5 . KS J ISO 17410:2007 4.1 2 , . . 10 1 . 4.2 6.5 10 . 4.3 mL g . 5 KS H ISO 7218 . , . , 1 (32) . 5.1 KS H ISO 68871 5.2 (PCA) 5.2.1 (enzymatic digest of casein)

5、 5.0 g (yeast extract) 2.5 g (glucose) 1.0 g (agar) 918 g a 1 000 mL a . L 1.0 g . . 5.2.2 . . , 25 7.00.2 pH(6.9 ) . (6.10 ) . 121 (6.1 ) 15 . 2 KS J ISO 17410:2007 , 4447 (6.7 ) . . 4447 (6.7 ) . 15 mL (6.5 ) . 3755 (6.3 ) ( ) . 30 (KS H ISO 7218 ). 6 KS H ISO 7218 . 1 , . . 6.1 121 . 6.2 1 170175

6、 . 6.3 3755 . 6.4 (6.51) . 6.5 90100 mm . 6.6 0.1 mL, 1 mL 10 mL . 6.7 4447 . 6.8 3 KS J ISO 17410:2007 . 6.9 pH 25 0.01 pH , 0.1 pH . 6.10 , . 6.11 . 7 . . . . 8 KS H ISO 68871 ISO 8261 . 9 9.1 , KS H ISO 68871 ISO 8261 , (1 ) . 9.2 9.2.1 ( ) 1 2 . PCA (5.3 ) (1 ) 0.1 mL (6.6 ) . 9.2.2 (6.11 ) . .

7、 . 9.2.3 9.2.2 6.5 (6.4 ) . 10 . 4 KS J ISO 17410:2007 9.3 (9.2.3 ) (6.8 ) 150 . , . . 1/4 , . 1/4 , . 10 10.1 KS H ISO 7218 . 15 1 . (1) mL g (CFU) N . d n n V C N 2 1 1 . 0 ) (1) C : 15 2 V : (mL) n 1 : n 2: d : . 10.2 10.2.1 :15150 . 5 , 5 . 28 500 29 000, 11 500 12 000 . mL( ) g ( ) CFU , 10 1.

8、09.9 . 10.2.2 ( ) ( ) 2 15 , . 5 KS J ISO 17410:2007 . (2) g ( ) mL( ) N E . d n V C N E (2) C : V : (mL) n : ( n2) d : 10.2.3 ( ) ( ) 2 , . mL( ) g ( ) 1/(Vd) V : (mL) d : 10.2.4 150 , 150 . (3) . mL( ) g ( ) N . d n V C N (3) C : V : (mL) n : ( n2) d : 10.3 0.1 mL . 10 2 :125138 10 3 :1820 818 136

9、 2 002 . 0 301 10 2 1 . 0 2 1 . 0 18 20 125 138 1 . 0 2 2 1 d n n V C N KS H ISO 7218 mL g 140 000 1.410 5 6 KS J ISO 17410:2007 . 11 (Poisson distribution) 1652 % ( 1 ). . KS H ISO 7218 . 12 . ( ) . 7 KS J ISO 17410:2007 8 1 Cowell and Morisetti, J. SC. Fd. Agri., 20, 1969, p. 573. 2 IDF Standard 1

10、32A:1991, MilkEstimation of numbers of psychrotrophic microorganisms, rapid colony count technique, 25 hours at 21 3 KS H ISO 68872, , 10 2: 4 KS H ISO 68873, , 10 3: 5 KS H ISO 68874, , 10 4: , , 6 ISO 68875, Microbiology of food and animal feeding stuffsPreparation of test samples, initial suspens

11、ion and decimal dilutions for microbiological examinationPart 5:Specific rules for the preparation of the initial suspension and decimal dilutions of products other than milk and milk products, meat and meat products, or fish products 153787 1 145 3(16) (02)26240114 (02)26240148 http:/ KS J ISO 17410 :2007 KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS Microbiolog of food and animal y feeding stuffs Horizontal method for the enumeration of psychrotrophic microorganisms ICS 07.100.30 Korean Agency for Technology and Standards http:/www.kats.go.kr

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