| 摘要 |
1352545 Mixed culturing of micro-organisms Y MIURA 28 May 1971 [6 June 1970] 17960/71 Heading C6F A process for propagating micro-organisms involves culturing in a nutrient medium containing a hydrocarbon or carbohydrate carbon source (specified), at least one yeast or mould strain capable of assimilating the carbon source in combination with at least one aerobic bacterium strain capable of assimilating the carbon source which has a higher optimum temperature for growth than the yeast or mould strain, under aerobic conditions at a temperature which is higher than the optimum temperature for growth of the yeast or mould strain but not exceeding the optimum temperature for growth of the bacterium strain. Culturing is generally carried out at a temperature of 25‹ to 47‹C and at apH of 3À5 to 8À5, but the p H is preferably 3À5-5À5 when a high production of yeast is desired and 6À0-8À5 in the case of bacteria or moulds. The symbiotic cultivation of many species or strains of yeast or moulds with bacteria is treated extensively in the many Examples.
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