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US 12,018,305 B2Granted
Process for production of nigericin from Streptomyces sp. MCC-0151
AssigneeCouncil of Scientific and Industrial Research
InventorsGulam Dastager Syed, Amit Kumar Sahu
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Abstract
A fermentation process is provided for the synthesis of Nigericin from Streptomyces sp. having accession number MCC 0151 and its isolation with high yield. A microbial inoculant composition is provided, comprising a biologically pure culture of Streptomyces sp. MCC 0151 for the exclusive production of Nigericin with high yield.
Claims9
A process for synthesis of nigericin from Streptomyces sp. MCC 0151, the process comprising:
- (i) providing a pure colony of Streptomyces sp. MCC 0151;
- (ii) preparing an inoculum by incubating the pure colony of Streptomyces sp. MCC 0151 in liquid cultivation medium (LCM);
- (iii) providing a metabolite production medium;
- (iv) aseptically inoculating the inoculum from (ii) to the metabolite production medium and culturing the inoculum therein;
- (v) mixing the metabolite production medium containing the Streptomyces sp. MCC 0151 and ethyl acetate in a ratio of 1:1 to obtain a mixture;
- (vi) centrifuging the mixture obtained in (v) to obtain a supernatant and an ethyl acetate extract comprising nigericin;
- (vii) evaporating the ethyl acetate extract obtained in (vi) to obtain a dried crude extract;
- and
- (viii) purifying the dried crude extract obtained in (vii) by column chromatography to obtain a purified nigericin, wherein nigericin is produced having a high yield with concentration up to 500 mg/L.
6 more elements
Dependencies are inferred from the claim text.