Cronobacter sakazakii quantitative strain|BNCC364021 |BNCC

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  • Quantitative strains of cronobacter sakazakii-BNCC

Quantitative strains of cronobacter sakazakii

  • Price： Contact
  • number：BNCC364021
  • Packing：Syringa; 10 ^ 4CFU/bottle
  • Form：
    The colony is 1-2mm in diameter, round, neat edges, opaque, golden yellow on the front, raised in the middle, smooth surface, bright surface, moist texture, easy to pick up, G-(red), bacilli, purity: pure
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Quantitative strains of cronobacter sakazakii
Culture medium Peptone: 10.0, beef powder: 3.0, sodium chloride: 5.0, agar: 15.0,pH: 7.3±0.1(25 ℃)
Subculture procedure ① According to the culture conditions, the bacteria are first cultured into a bacterial suspension; ② Measure the absorbance of the bacterial suspension and calculate the initial concentration of the bacterial suspension according to the standard formula; The initial concentration multiplied by the survival rate is the actual concentration after freeze-drying; ④ According to the actual concentration after freeze-drying, the bacterial suspension was diluted to obtain the target concentration, and then subpacked and freeze-dried;
Growth conditions 30 ℃;18-24h; aerobic
Storage conditions -80 ℃
Safety level 1
morphology The colony is 1-2mm in diameter, round, neat edges, opaque, golden yellow on the front, raised in the middle, smooth surface, bright surface, moist texture, easy to pick up, G-(red), bacilli, purity: pure
application GB 4789.40-2016 National Food Safety Standard Food Microbiological Examination-Examination of Cronobacter (Enterobacter sakazakii)
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