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- W2019922782 abstract "누룩은 탁주와 약주의 제조를 위한 당화효소와 알코올발효를 위한 미생물의 공급원으로서 제품의 맛과 품질을 결정하는 중요한 역할을 한다. 본 연구에서는 산성누룩의 세균과 진균의 다양성을 조사하기 위해 순수분리 종과 16S 및 28S rRNA gene를 대상으로 한 PCR-DGGE를 이용한 분석을 수행하였다. 누룩 내 세균의 수는 <TEX>$2.7{times}10^9$</TEX> CFU/g이었으며 순수분리와 PCR-DGGE 분석에서 우점종은 Kocuria spp., Pantoea spp., Lactobacillus spp., Pediococcous spp., Weissella spp., Staphylococcus spp. 그 외 endophytic bacterium, uncultured gamma-proteobacteria, uncultured Cyanobacteria와 Actinobacteria였다. PCR-DGGE profile에서 주된 우점종은 Pediococcous pentosaceus와 uncultured Cyanobacteria 이었다. 누룩 내 진균의 수는 <TEX>$3.5{times}10^8$</TEX> CFU/g이었으며 순수분리와 PCR-DGGE 분석에서 우점종은 Trichomonascus spp., Pichia spp., Torulaspora spp., Wickerhamomyces spp., Sacharomycopsis spp., Lichtheimia spp., Mucor spp., Rhizopus spp., Aspergillus spp., Cladosporium spp.였다. PCR-DGGE profile에서 주된 우점종은 Pichia kudriavzevii와 Aspergillus oryzae이었다. PCR-DGGE 기술은 본 연구에서 누룩의 미생물군집을 평가하기 위해 처음으로 사용되었으며 미생물 다양성을 설명하는 데 효과적임을 입증하였다. Nuruk plays a significant role in the flavor and quality of Takju and Yakju, which are produced through saccharification and alcohol fermentation by various microorganisms. In this study, we identified microbial strains isolated from a plate count and PCR-denaturing gradient gel electrophoresis (DGGE) analysis targeting the 16S and 28S rRNA genes, in order to characterize bacterial and fungal diversity in Sansung Nuruk. The numbers of bacteria and fungi in Nuruk were <TEX>$1.5{times}10^9$</TEX> CFU/g and <TEX>$2.2{tims}10^8$</TEX> CFU/g, respectively. The 16S rRNA gene sequence indicated that the predominant bacteria in the isolates and PCR-DGGE profile of Nuruk were Kocuria spp., Pantoea spp., Lactobacillus spp., Pediococcus spp., Weissella spp., Staphylococcus spp., endophytic bacterium, uncultured Gamma-proteobacteria, uncultured Cyanobacteria, and Actinobacteria. Dominant bacteria from the PCR-DGGE profile were Pediococcous pentosaceus and uncultured Cyanobacteria. The 28S rRNA gene sequence indicated the predominant fungi in the isolates and PCR-DGGE profile to be Trichomonascus spp. Pichia spp., Torulaspora spp., Wickerhamomyces spp., Sacharomycopsis spp., Lichtheimia spp., Mucor spp., Rhizopus spp. Aspergillus spp., and Cladosporium spp. Dominant fungi from the PCR-DGGE profile were Pichia kudriavzevii and Aspergillus oryzae. The PCR-DGGE technique was used for the first time in this study to assess a microbial community in Nuruk and proved to be an effective protocol for profiling microbial diversity." @default.
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- W2019922782 date "2012-01-30" @default.
- W2019922782 modified "2023-10-16" @default.
- W2019922782 title "Analysis of Microbial Diversity in Nuruk Using PCR-DGGE" @default.
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- W2019922782 doi "https://doi.org/10.5352/jls.2012.22.1.110" @default.
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