NUTRITIVE MEDIUM FOR YEAST CULTIVATION Russian patent published in 2011 - IPC C12N1/16 C12Q1/04 

FIELD: food industry.

SUBSTANCE: nutritive medium contains a mixture of extract of sweet potato with yeast or tomato extract, substances simplifying identification of Candida genus microorganisms chosen from the group of chromogenic and/or fluorogenic substrates, indicators or colouring agents represented in the nutritive medium by preferably 5-bromine-4-chloride-3-indoxyl-myo-inositolphosphate, methyl-umbelliferyl-α-D-glucopyranoside, 5-bromine-4-chloride-3-indolyl-N-acetyl-β-D-glucopyranoside, 6-chloride-3-indoxyl-β-D-glucopyranoside, 4-methyl-umbelliferyl-N-acetyl-β-D-galactosaminide, 5-bromine-4-chloride-3-indoxyl-N -acetyl-β-D-glucosaminide, hydrobromide L-proline-7-amido-4-methyl-cumarin, para - nitroanilide L-proline, bromocresol purple, bromthymol blue, carbon sources represented by glycerine or separated milk, chromogenic reactions activators represented in the medium by glycerine or maltose or trehalose, additional nitrogen sources represented by glycine or bacterial peptone or fermentative casein hydrolysate, bacteria inhibitors represented in the medium by nalidicsic acid or tea rose extract or sodium deoxycholate or sodium sulphite or ammonium-bismuth citrate or triphenyltetrazolium chloride, pH - regulating substances, ferments activators represented in the medium by potassium monophosphate or potassium diphosphate or 3-morpholinopropanesulphonic acid or magnesium sulphate, agar and distilled or deionised water at preset components ratio.

EFFECT: invention allows to simultaneously extract and identify relevant Candida genera and reduce the terms of Candida genus microorganisms extraction, identification and differentiation.

12 cl, 32 tbl, 22 ex