Industrial production method of lipopeptide bio-surfactant
A technology of biological surfaces and production methods, applied in microorganism-based methods, biochemical equipment and methods, microorganisms, etc., can solve the problems of low yield, unstable biological fermentation process, and high cost
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[0018] The present invention will be described in detail through the following examples:
[0019] The industrial production method of the lipopeptide biosurfactant includes the following steps:
[0020] (1) Bacterial breeding: The starting bacterium was selected from the Bacillus subtilis No. 10366 of China Industrial Microorganism Preservation and Management Center. After enrichment culture, blood plate separation and screening, a high-yield production strain was obtained, No. VTS-1106 ;
[0021] (2) Inclined seed cultivation: the ratio of the medium is 20g / L glucose, 5g / L ammonium nitrate, 1.0g / L potassium dihydrogen phosphate, 2g / L disodium hydrogen phosphate, 0.5g / L magnesium sulfate, yeast powder 0.8g / L, L-glutamic acid 0.8g / L, niacin 0.0002g / L, the balance is water; pH value 7.2-7.3, 0.1Mpa sterilization for 20min, slant culture at 37℃ constant temperature for 24h, check if there is no Infect the bacteria for later use. The total amount of slant culture is calculated as ≥ 6%...
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