Quality control sample of Listeria monocytogenes in milk powder|BNCC384117 |BNCC

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Quality control samples of Listeria monocytogenes in milk powder

Culture medium	Bovine brain extract powder: 4.0, bovine heart extract powder: 4.0, peptone: 5.0, casein peptone: 16.0, sodium chloride: 5.0, glucose: 2.0, disodium hydrogen phosphate: 2.5, agar: 13.5,pH:7.4±0.2(25 ℃)
Subculture procedure	Brain extract powder: 5.0g, heart extract powder: 12.5g, peptone: 5.0g, tryptone: 10.0g, sodium chloride: 5.0g, glucose 2.0g, disodium hydrogen phosphate 2.5g, agar 15.0g (not included in liquid medium),pH 7.4±0.2. 121 ℃,15min sterilization.
Growth conditions	37 ℃,18-24h, aerobic
Storage conditions	-20 ℃
Safety level	2
application	GB 4789.30-2016 National Food Safety Standard Food Microbiological Examination of Listeria monocytogenes Examination, Qualitative Examination of Listeria monocytogenes in Simulated Milk Powder Matrix Quality Control and Personnel Assessment (Positive)
Sharing mode	Public welfare sharing