Asian-Australasian Journal of Animal Sciences

  • 제30권11호
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  • Pages.1643-1650
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  • 2017
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  • 1011-2367(pISSN)
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  • 1976-5517(eISSN)
아세아태평양축산학회 (Asian Australasian Association of Animal Production Societies)
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Comparative analysis of the microbial communities in raw milk produced in different regions of Korea

  • Kim, In Seon (Department of Agricultural Biotechnology, Seoul National University) ;
  • Hur, Yoo Kyung (Graduate School of International Agricultural Technology, Seoul National University) ;
  • Kim, Eun Ji (Graduate School of International Agricultural Technology, Seoul National University) ;
  • Ahn, Young-Tae (R&BD Center, Korea Yakult Co., Ltd.) ;
  • Kim, Jong Geun (Graduate School of International Agricultural Technology, Seoul National University) ;
  • Choi, Yun-Jaie (Department of Agricultural Biotechnology, Seoul National University) ;
  • Huh, Chul Sung (Graduate School of International Agricultural Technology, Seoul National University)
  • 투고 : 2017.07.17
  • 심사 : 2017.09.19
  • 발행 : 2017.11.01
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초록

Objective: The control of psychrotrophic bacteria causing milk spoilage and illness due to toxic compounds is an important issue in the dairy industry. In South Korea, Gangwon-do province is one of the coldest terrains in which eighty percent of the area is mountainous regions, and mainly plays an important role in the agriculture and dairy industries. The purposes of this study were to analyze the indigenous microbiota of raw milk in Gangwon-do and accurately investigate a putative microbial group causing deterioration in milk quality. Methods: We collected raw milk from the bulk tank of 18 dairy farms in the Hoengseong and Pyeongchang regions of Gangwon-do. Milk components were analyzed and the number of viable bacteria was confirmed. The V3 and V4 regions of 16S rRNA gene were amplified and sequenced on an Illumina Miseq platform. Sequences were then assigned to operational taxonomic units, followed by the selection of representative sequences using the QIIME software package. Results: The milk samples from Pyeongchang were higher in fat, protein, lactose, total solid, and solid non-fat, and bacterial cell counts were observed only for the Hoengseong samples. The phylum Proteobacteria was detected most frequently in both the Hoengseong and Pyeongchang samples, followed by the phyla Firmicutes and Actinobacteria. Notably, Corynebacterium, Pediococcus, Macrococcus, and Acinetobacter were significantly different from two regions. Conclusion: Although the predominant phylum in raw milk is same, the abundances of major genera in milk samples were different between Hoengseong and Pyeongchang. We assumed that these differences are caused by regional dissimilar farming environments such as soil, forage, and dairy farming equipment so that the quality of milk raw milk from Pyeongchang is higher than that of Hoengseong. These results could provide the crucial information for identifying the microbiota in raw milk of South Korea.

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피인용 문헌

  1. Insights into Psychrotrophic Bacteria in Raw Milk: A Review vol.82, pp.7, 2017, https://doi.org/10.4315/0362-028x.jfp-19-032
  2. Robustness and efficacy of an inhibitory consortium against E. coli O26:H11 in raw milk cheeses vol.115, pp.None, 2017, https://doi.org/10.1016/j.foodcont.2020.107282