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 | 1. Cultivate the target bacteria until the spore yield is maximum; 2. Inactivate and dissolve the bacteria themselves and collect spores; 3. Count and pack the spores; |
| Growth conditions | 45 ℃;24-48h; Aerobic |
| Storage conditions | 2-8 ℃ |
| Safety level | 1 |
| Morphology | 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. |
| 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 |
Bacillus subtilis spore suspension
BNCC361464
Mycobacterium smegmatis nucleic acid reference (Heat inactivated) (Strongly positive)
BNCC363811
Fecal coliform standard quality control sample (Multitube fermentation method)
BNCC359289
Quality control samples by enzyme substrate method for drinking water
BNCC360392
Reference material of escherichia coli count in food
BNCC359093
Pseudomonas aeruginosa carrier (steel plate)
BNCC362005