Aureobasidium pullulans PA-2 fermenting medium and fermenting condition optimizing method
A technology of Aureobasidium pullulans and fermentation medium, which is applied in the field of Aureobasidium pullulans PA-2 fermentation medium and fermentation condition optimization, can solve problems such as not being able to meet the application requirements of Aureobasidium pullulans, increase the number of spores, improve Production efficiency and the effect of increasing the number of spores
Pending Publication Date: 2019-10-25
QINGHAI UNIVERSITY
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Problems solved by technology
However, the current research on Aureobasidium pullulans is mainly focused on fermenting sugars and increasing the active substances in the fermentation broth,
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The invention provides an Aureobasidium pullulans PA-2 fermenting medium and a fermenting condition optimizing method and relates to the technical field of bacterial culture. The quantity of spores for performing fermenting culture on Aureobasidium pullulans PA-2 can be increased effectively, so that production efficiency is improved. The Aureobasidium pullulans PA-2 fermenting medium 84.60 g/L ofglucose, 46.35 g/L of soybean flour and 10.91 g/L of inorganic salts; the inorganic salts include NaCl, MgSO4, KCl, K2HPO4 and (NH4)2SO4; as fermenting culture conditions, pH is 7.0, fermenting culture time is 120 h, inoculating quantity is 8%, rotational velocity is 180 r/min, fermenting temperature is 25 DEG C, and liquid-holding capacity is 60 mL. The Aureobasidium pullulans PA-2 fermenting medium is applicable to cultivation of Aureobasidium pullulans.
Description
【Technical field】 [0001] The invention relates to the technical field of bacterial strain cultivation, in particular to a fermentation medium of Aureobasidium pullulans PA-2 and a method for optimizing fermentation conditions. 【Background technique】 [0002] Field weeds are the medium for the occurrence and spread of crop diseases and insect pests, which increase the labor and input costs of agricultural field management and become one of the factors that seriously endanger the agricultural economy (Li Jiuxin, 2011; Chen Shiguo, 2015; Li Xiangju, 2018). The long-term and extensive use of chemical pesticides has led to the rapid development of weed resistance in farmland, frequent crop damage and pesticide residues, increasing the difficulty of management and labor costs (Feng Weizhuo, 2001; Liang Qiaoling, 2007). Therefore, increasing the abundance of herbicides in order to study efficient, new, green, and non-polluting biopesticides and avoiding weed resistance caused by lo...
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Login to View More IPC IPC(8): C12N1/14A01N63/04A01P13/00C12R1/645
CPCC12N1/14A01N63/30
Inventor 郭青云程亮魏有海朱海霞杨莹庄新亚
Owner QINGHAI UNIVERSITY