Weiyel Reference Materials
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| Subculture | Nutritional gravy medium (English name: NA/NB): beef paste 3.0g, peptone 10.0g,NaCl 5.0g, agar 20.0g (not included in liquid medium), distilled water 1.0L,pH 7.0. Sterilization at 121 ℃ for 15min. [Note] Adding 5 mgMnSO4 · H2O to culture Bacillus is beneficial to produce spores. |
| Subculturing | When using the essential control product, it should be moved to room temperature (20~25 ℃) for 10 minutes, the concentration value is 10 9~10 10PFU/mL, and the reference concentration is 1.71 × 10 9PFU/mL |
| Safety level | 1 |
| Application | The Escherichia coli phage PhiX174 quantitative standard quality control products, and collected phages by culturing host bacteria of Escherichia coli and phage PhiX174. The phage titer and lysis efficiency were determined by double-layer agar counting method, which was mainly used for phage PhiX174 positive quality control. |
| Sharing mode | Public welfare sharing |
Bacillus coagulans spore suspension
BNCC362557
8032 Staphylococcus albus carrier (steel sheet)
BNCC362003
Water quality fecal coliform positive quality control sample (Membrane membrane method)
BNCC360396
Escherichia coli-sfgfp green fluorescent marker strain
BNCC363778
Shigella quality control sample of sludge from medical institutions
BNCC362177
Fecal coliform positive control quality control sample (Membrane membrane method)
BNCC359576