Study on the Novel Strain Rhizopus Oryzae ATCC2809?s Growth and Fermentation

The high quality saccharifying power strain is very important for fermentation in China. R.oryzae ATCC2809 was screened from Chinese traditional alcohol starters ?JiuQu?, which is an excellent strain possessing strong saccharifying power in musk fermentation and generating aroma taste flavor. For further exploring the characteristics of strain R.oryzae ATCC2809 matched the standard species description of growth characteristics and productivity of Rhizopus oryzae strain ATCC2809, and saccharifying power of the strain Rhizopus oryzae ATCC2809 as the main indexes, the main growing factors including trace element, temperature, saccharification, culture medium, amino acid concentrations after the fermentation by R.oryzae ATCC2809 in the mash, etc., were analyzed by comparison experiment. When the fermentation was over, the content of the amino acid of the mash of R.oryzae ATCC2809 was contrasted by the other two traditional strains of R.oryzae F14 and R.oryzae Q303, because the later two strains were widely used in industrial production and achieved good economic profit for the enterprises. At last, we got the conclusion: the essential trace elements of strain R.oryzae ATCC2809 were: P(phosphorus), Mg(magnesium). The strain R.oryzae ATCC2809 grew very well in PDA. Its saccharification power in Czapek's bran medium was better than the others culture mediums. The optimal production yields were achieved at 32?.