Objective To Screen the Bacillus strains that producing L- Djenkolic acid. Methods Extracellular metabolites of 32 Bacillus strains were analyzed by LC-QTOF MS and Metlin database. Results The result showed that four Bacillus strains contain L-Djenkolic acid, including Bacillus cohnii FJAT-10017, Aneurinibacillus aneurinilyticus FJAT-10004 , Paenibacillus glucanolyticus FJAT-10020 and Brevibacillus agri FJAT-10018. The content of L-Djenkolic acid was highest in Bacillus cohnii FJAT-10017, with the relative content of 1.73%. Conclusion Bacillus cohnii FJAT-10017 is the high-yield Bacillus strain producing L-Djenkolic acid. This result provided theory basis for development and utilization of active substances from Bacillus.
标题:基于液相色谱四极杆飞行时间质谱的产非蛋白质氨基酸-今可豆氨酸芽胞杆菌筛选
英文标题:Screening of Bacillus strains producing Non-protein amino acid named L-Djenkolic acid based on liquid chromatography-hybrid quadrupole time-of-flight mass spectrometry