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Abstract:
The molecular detection method of qPCR combined with PMA is an effective method for the detection of active microorganisms. This study aimed to develop PMA-qPCR method for the six dominant bacteria (including Staphylococcus pasteuri, Leuconostoc mesenteroides, Pediococcus pentosaceus, Lactococcus lactis subsp. lactis, Lactobacillus plantarum and Lactobacillus casei) during the traditional brewing of Hong Qu glutinous rice wine. Firstly, specific primers were designed and synthesized for real-time quantitative PCR analysis, and PMA treatment conditions were further optimized. Then, the PMA-qPCR method for the quantitative detection of six dominant bacteria was constructed through the construction of standard curves. The results showed that the six designed and synthesized specific primers were effective and feasible; the optimal PMA treatment condition was PMA concentration 50 μmol/L and cross linking exposure time 5 min. The constructed PMA-qPCR assay for the live bacteria was applied to the traditional brewing process of Hong Qu glutinous rice wine. Pediococcus pentosaceus, Leuconostoc mesenteroides and Lactococcus lactis subsp. lactis were determined to be the three dominant bacteria during traditional brewing system. The constructed PMA-qPCR assay for viable bacteria could be used to detect the dominant bacteria and their dynamic changes timely and quantitatively during the traditional brewing of Hong Qu glutinous rice wine, which is helpful to elucidate the mechanism of action of different bacteria during the traditional brewing process of Hong Qu glutinous rice wine. © 2018, Editorial Office of Journal of CIFST. All right reserved.
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Journal of Chinese Institute of Food Science and Technology
ISSN: 1009-7848
Year: 2018
Issue: 7
Volume: 18
Page: 210-219
Cited Count:
WoS CC Cited Count: 0
SCOPUS Cited Count: 1
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 1
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