SHI Yu,LIU Xiaofeng,SHAN Liqian,et al.Isolation and Identification of Arisaema Cum Bile Fermentation Strain and Preliminary Investigation on Its Compound Strain Fermentation[J].Chinese Journal of Experimental Traditional Medical Formulae,2022,28(17):150-156.
SHI Yu,LIU Xiaofeng,SHAN Liqian,et al.Isolation and Identification of Arisaema Cum Bile Fermentation Strain and Preliminary Investigation on Its Compound Strain Fermentation[J].Chinese Journal of Experimental Traditional Medical Formulae,2022,28(17):150-156. DOI: 10.13422/j.cnki.syfjx.20212450.
Isolation and Identification of Arisaema Cum Bile Fermentation Strain and Preliminary Investigation on Its Compound Strain Fermentation增强出版
In order to solve the problem that the quality and stability of Arisaema Cum Bile in the fermentation process with hybrid bacteria were not easy to control, the microorganism in the fermentation process of Arisaema Cum Bile was isolated and identified, the dominant strains were screened and the fermentation process of Arisaema Cum Bile with compound bacteria was investigated.
Method
2
The submerged culture during the fermentation process of Arisaema Cum Bile was taken out for strain separation and purification. Bacteria and fungi multiphase identification and detection methods and automatic microbial analysis system were used to analyze and compare DNA sequences and identify microorganisms. The isolated and identified strains were respectively inoculated and fermented. After screening the dominant strains, a preliminary exploration of compound strain fermentation were carried out. The contents of index components in Arisaema Cum Bile fermented by compound strain and traditional Arisaema Cum Bile were compared by ultra-performance liquid chromatography-triple quadrupole tandem mass spectrometry (UPLC-QqQ-MS/MS). Mmobile phase was 0.1% formic acid acetonitrile solution (A)-0.1% formic acid aqueous solution (B) for gradient elution (0-2 min, 35%-45%A; 2-10 min, 45%-48%A; 10-12 min, 48%-100%A; 12-12.01 min, 100%-35%A; 12.01-15 min, 35%-65%A), the flow rate was set at 0.35 mL·min
-1
. The mass spectrographic analysis employed electrospray ionization (ESI), negative ion acquisition mode and multiple reaction monitoring (MRM) scanning mode were adopted to collect information, the collection range was
m
/
z
50-1 000.
Result
2
Eight microorganisms were isolated and identified from the submerged culture of Arisaema Cum Bile. Among them,
Enterococcus
sp. (anaerobic) and
E. casseliflavus
were selected as the dominant strains in the fermentation process. Compared with the traditional fermentation method, the contents of chenodeoxycholic acid, hyodeoxycholic acid and hyocholic acid in free cholic acid increased by 1.76, 0.06, 0.19 mg·g
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