Common name: Bengal Red Agar
English name:Rose Bengal Medium
Used for counting, isolating, and culturing molds and yeast in cosmetics.
Culture medium is a mixed nutritional product prepared by artificial methods, specifically for microbial cultivation, separation, identification, research, and preservation. The protein peptone contained in Bengal red agar provides a nitrogen source; Glucose provides a carbon source and inhibits bacteria along with tiger red; Phosphate is a pH buffer, magnesium sulfate can promote fungal growth, and agar powder is a coagulant for the culture medium.
It is made from culture medium materials such as peptone, glucose, magnesium sulfate, phosphate, tiger red, agar, etc., and packaged by ball milling.
After pre-treatment according to GB standards, the samples were inoculated into a culture medium at 28 ± 1 ℃ for 5 days, and the results were observed.
Brewery yeast grows well with creamy colored colonies; Aspergillus niger grows well, with white hyphae and black spores; The growth of Escherichia coli and Staphylococcus aureus is inhibited.
Escherichia coli grows well, with or without purple red or red colonies with precipitation rings; Citrobacter frederii grows well with colorless colonies; The growth of Enterococcus was inhibited.
1. This culture medium is only used for scientific research.
2. The collected specimens must be inoculated and cultured as soon as possible to ensure accurate results.
3. The specimens used and their cultivation waste should be considered as potentially infectious substances and should be disposed of in accordance with the operating standards of infectious disease laboratories.
4-30 ℃, stored away from light.
【Period of validity】
The validity period is 3 years.
1. Safety technical specifications for cosmetics - Microbial testing methods, 2015 edition
2. SN/T 1538.1-2005 Guidelines for the Preparation of Culture Medium Part 1: General Principles for Quality Assurance of Laboratory Culture Medium Preparation
3. SN/T 1538.2-2007 Guidelines for the Preparation of Culture Media Part 2: Practical Guidelines for Performance Testing of Culture Media
4. WS/T 232-2002 Quality Inspection Procedures for Commercial Microbial Culture Media
5. GB 4789.28-2013 Quality Requirements for Culture Media and Reagents for Microbiological Testing of Food