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 | This spore suspension is a pure spore suspension, which is obtained by cell separation and collection of spores. It can be used directly, and the corresponding volume can be added according to the test requirements. |
| Growth conditions | 45 ℃;24-48h; Aerobic |
| Storage conditions | 2-8 ℃ |
| Safety level | 1 |
| Morphology | The colony diameter is 0.5-1mm, round, with neat edges, opaque, gray-white front, convex in the middle, bright surface, smooth surface, moist texture, easy to pick up, G + (blue-purple), bacilli |
| Application | It is suitable for the production of sterilization effect indicator bacteria and high-density Bacillus coagulans in canned food. |
| Sharing mode | Public welfare sharing |
Escherichia coli bacteriophage PhiX174 standard quality control product
BNCC362980
Bacillus subtilis black variety spore stain carrier (cloth)
BNCC362001
Quality control samples of salmonella from sewage of medical institutions
BNCC362178
Quality control sample of total bacterial count in drinking water
BNCC360334
Staphylococcus aureus nucleic acid reference material (Heat inactivated)(Strongly positive)
BNCC360678
Quality control samples of fecal coliforms in medical institutions
BNCC362169