GB 4789.35-2016: Translated English of Chinese Standard. GB 4789.35-2016: National food safety standard - Microbiological examination of food - Examination of lactic acid bacteria
https://www.chinesestandard.net, 15 de set. de 2017 - 15 páginas
This standard specifies the testing method of the lactic acid bacteria in the food containing lactic acid bacteria. This standard is applicable to the testing of lactic acid bacteria in foods containing active lactic acid bacteria.
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GB 4789.41-2016: Translated English of Chinese Standard. GB4789.41-2016 ...
Visualização parcial - 2017
1:10 sample homogenate ABSORB 1 mL Aescinate agar culture medium anaerobic environment autoclaved at 121 average number Beef powder Bifidobacterium number individually calculated by multiplying Carbohydrate conical flask containing 225 mL continuous appropriate dilutions cooled to 48 counting Bifidobacterium number Crystal violet Cysteine Hydrochloride modified dilution factor duration from sample environment for 72 fermentation tube finished within 15 g Yeast powder Glucose Gram stain HEAT to dissolve lactic acid bacteria Lactobacillus Lactose Li-Mupirocin and Cysteine Mannitol Methodology ADD micro pipette mix it uniformly mL distilled water mL of physiological mL of sample mL sterile pipette modified MRS medium multiplying the average neutral red number of colonies number of lactic number of Streptococcus numeration culture condition Operate in accordance physiological saline plate pouring plate to mix produce 1:10 sample requires counting Bifidobacterium result description ROTATE the plate selection and result Sorbitol sterile homogeneous sterile plate strains are positive transferring the diluent