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. According to the arrow sign of Xilin bottle cap, open the strain and dissolved liquid; 2. Pour the bacteria tablets into the dissolved liquid, cover the rubber stopper, shake and dissolve; 3. After being fully dissolved, it can be absorbed in proportion according to the test requirements; 4. Please use up immediately after opening, and do not store it; |
| Growth conditions | 37 ℃, aerobic, 18-24h |
| Storage conditions | -20 ℃, kept away from light |
| Safety level | 1 |
| Application | Pharmacopoeia test |
| Sharing mode | Public welfare sharing |
Talc powder contaminated by Bacillus atrophicus 9372
BNCC362552
Seawater total coliform positive control quality control sample (Multi-tube fermentation method)
BNCC363180
Fecal coliform positive control quality control sample (Membrane membrane method)
BNCC359576
Clostridium sporogenes spore suspension
BNCC362135
Reference material of total bacterial count in food
BNCC359084
Bacillus subtilis black variety spore stain carrier (cloth)
BNCC362001