Weiyel Reference Materials
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 this standard is used, it is moved to room temperature to be completely dissolved, shaken evenly, and used after instantaneous centrifugation to avoid repeated freezing and thawing as much as possible. |
Growth conditions | 37 ℃;18-24h; Aerobic; |
Storage conditions | -80 ℃ |
Safety level | 1 |
Application | This DNA standard is to extract and purify the nucleic acid of enteric invasive Escherichia coli (EIEC) after heat inactivation treatment. The absolute determination of the concentration of nucleic acid is determined by digital PCR, and then the nucleic acid solution is diluted to the required concentration with TE buffer solution. This standard is not contagious and has no biosafety risk. It is suitable for nucleic acid detection, specific analysis and other nucleic acid related studies of intestinal invasive Escherichia coli (EIEC). It cannot be used for clinical diagnosis of diseases. |
Sharing mode | Public welfare sharing |