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1.
Article in Chinese | WPRIM | ID: wpr-878808

ABSTRACT

This study aimed to clarify the microbial diversity, dominant species and the change of community structures in the fermentation of Liushenqu(Massa Medicata Fermentata), and explore the material foundation of its pharmacodynamics effect. On the basis of standardizing the fermentation process, Massa Medicata Fermentata was prepared by screening and optimizing the recipes and the standard formula issued by the Ministry. The community structure and growth process of fungi and bacteria in the samples at five time points(0, 17, 41, 48, 65 h) in the fermentation process of Massa Medicata Fermentata were analyzed by using isolation and culture of eight different media and high-throughput DNA sequencing technology. The results indicated that the samples of the two recipes pre-sented high microbial diversity at the initial fermentation stage, with Aspergillus spp. as the dominant species. As the fermentation process goes forward, Saccharomycopsis fibuligera and Rhizopus oryzae soon became dominant species from 17 h after fermentation commencement point to the fermentation end, while the other species were inhibited at a lower level from 17 h. The species diversity of bacteria in the initial fermentation samples was also high, and Enterobacter was the dominant species. Enterobacter cloacae, Pediococcus pentosaceus and Cronobacter sakazakii became dominant bacterial species 17 h after fermentation commencement, while the species diversity was decreased. Our results will be a scientific basis for promoting the fermentation process of Massa Medicata Fermentata by using pure microbial cultures.


Subject(s)
Drugs, Chinese Herbal , Fermentation , Fungi/genetics , Microbiota , Saccharomycopsis
2.
Article in Chinese | WPRIM | ID: wpr-850906

ABSTRACT

Objective: To study the chemical constituents from Medicated Leaven (namely Massa Medicata Fermentata in Chinese). Methods: Compounds were isolated and purified from chloroform extract of Medicated Leaven by column chromatograph of silica gel, ODS, Sephadex LH-20, HPLC, and their structure were elucidated on the basis of spectral data and physicochemical property. Results: Eleven chemical compounds were identified as 5-pentacosyl resorcinol (1), 5-heptadecyl resorcinol (2), 5-heneicosyl resorcinol (3), 5-tricosyl resorcinol (4), (9S,10E,12Z)-9-hydroxy-10,12-octadeca-dienoic acid (5), trans-4-hydroxy-2-nonenoic acid (6), 9,10,11-trihydroxy-11(E)-octadecenoic acid (7), (9S,12R,13S)-9,12,13-trihydroxy-10(E)-octadecenoic acid (8), (9S,12S,13S)- 9,12,13-trihydroxy-10(E)-octadecenoic acid (9), (9S,12S,13S)-9,12,13-trihydroxy-10(E)-octadecenoic acid methyl ester (10), and 9,12(Z)-octadecadienoic acid methyl ester (11). Conclusion: All above compounds are all isolated from Massa Medicata Fermentata for the first time, and the chloroform extract of Massa Medicata Fermentata and compound 8 showed inhibitory effect against TNF-α generation of RAW 264.7 induced by LPS in a dose-dependent manner.

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