Contact YM(R)

Кат. номер

1021390001

1.02139.0001

(Yeasts and Molds) Envirocheck™
Envirocheck Contact Yeasts and Moulds, a semi-quantitative detection of microorganisms on surfaces and in liquids, are flexible paddles that are coated with Tryptic soy agar to determine the yeasts and moulds from samples. Slide A is coated with CASO (Tryptic Soy) Agar containing 0.05% Triphenyl Tetrazolium chloride (TTC). The growth of bacteria is indicated by red colonies due to the formation of red formazan dye when TTC is reduced and Slide B is coated with Rose Bengal Chloramphenicol Agar. Chloramphenicol inhibits the growth of bacteria additionally to Rose Bengal. Rose Bengal reduces the size and height of mould colonies so that slow-growing fungi are not overgrown by more rapidly growing species.
This medium is recommended for the selective isolation and enumeration of yeasts and moulds from environmental materials and foodstuffs. Envirocheck contact slides can be used for both surface and liquid testing in industrial and environmental monitoring.
Count the number of colonies on both sides of the paddle. CASO Agar with TTC: Count the number of colonies for obtaining the total aerobic bacterial count (TVC). Rose Bengal Chloramphenicol Agar: Count the number of colonies to obtain the fungal contamination (colonies of yeasts are red-pink)
Sterility: passes test
pH-value/side one (25°C): 6.6 - 7.3
pH-value/side two (25°C): 6.2 - 7.0
Growth/side one
- Escherichia coli ATCC 8739 (WDCM 00012):
good
- Staphylococcus aureus ATCC 6538 (WDCM 00032): fair/good
- Candida albicans ATCC 10231 (WDCM 00054): none/poor
- Saccharomyces cerevisiae ATCC 9763 (WDCM 00058): none/poor
- Pseudomonas aeruginosa ATCC 9027 (WDCM 00026): good
- Aspergillus brasiliensis (formerly A. niger) ATCC 16404(WDCM 00053): good
Growth/side two
- Escherichia coli ATCC 8739 (WDCM 00012):
none
- Staphylococcus aureus ATCC 6538 (WDCM 00032): none
- Candida albicans ATCC 10231 (WDCM 00054): good
- Saccharomyces cerevisiae ATCC 9763 (WDCM 00058): good
- Pseudomonas aeruginosa ATCC 9027 (WDCM 00026): inhibited
- Aspergillus brasiliensis (formerly A. niger) ATCC 16404(WDCM 00053): good
Incubation: 48 hrs.; 28 °C; aerobic; Aspergillus up to 72 hrs
ENVIROCHECK is a trademark of Merck KGaA, Darmstadt, Germany

storage conditions	Store below +15°C.
Quality Level	100
material	plastic cap, plastic slide, plastic tube
form	solid (ready-to-use)
Торговая марка	Envirocheck™
application(s)	microbiology: suitable
Featured Industry	Food and Beverages
storage temp.	2-30°C
suitability	molds, yeasts