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Stimulating the Growth of Kefir-isolated Lactic Acid Bacteria using Addition of Crude Flaxseed (Linum usitatissimum L.) Extract

  • Kim, Dong-Hyeon (Center for One Health, College of Veterinary Medicine, Konkuk University) ;
  • Jeong, Dana (Center for One Health, College of Veterinary Medicine, Konkuk University) ;
  • Oh, Yong-Taek (Center for One Health, College of Veterinary Medicine, Konkuk University) ;
  • Song, Kwang-Young (Center for One Health, College of Veterinary Medicine, Konkuk University) ;
  • Kim, Hong-Seok (Center for One Health, College of Veterinary Medicine, Konkuk University) ;
  • Chon, Jung-Whan (Center for One Health, College of Veterinary Medicine, Konkuk University) ;
  • Kim, Hyunsook (Dept. of Food & Nutrition, College of Human Ecology, Hanyang University) ;
  • Seo, Kun-Ho (Center for One Health, College of Veterinary Medicine, Konkuk University)
  • Received : 2017.06.05
  • Accepted : 2017.06.26
  • Published : 2017.06.30

Abstract

Linum usitatissimum L. (flaxseed) is emerging as an important functional food ingredient because of its rich contents, namely, ${\alpha}$-linolenic acid (ALA, omega-3 fatty acid), lignans, and fiber, which are potentially beneficial for human health. Furthermore, flax or flaxseed oil has also been incorporated as a functional food ingredient into various foods such as milk, dairy products, and meat products. Flaxseed is known to possess antimicrobial activity in vitro and in vivo, but its growth-stimulating effect on lactic acid bacteria is not clear. Hence, the objective of this study was to determine whether crude flaxseed extract stimulated the growth kefir-isolated lactic acid bacteria in vitro. The result of this study showed that Lactobacillus kefiranofaciens DN1, Lactobacillus brevis KCTC3102, Lactobacillus bulgaricus KCTC3635, and Lactobacillus plantarum KCTC3105 treated with $100{\mu}L$ of crude flaxseed extract showed significantly higher growth than the control treated with $100{\mu}L$ of water (p<0.05). Based on the results of this study, crude flaxseed extract could be used as a growth stimulator for lactic acid bacteria in various food applications, including production of milk and dairy products.

Keywords

References

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  1. Improving Kefir Bioactive Properties by Functional Enrichment with Plant and Agro-Food Waste Extracts vol.6, pp.3, 2017, https://doi.org/10.3390/fermentation6030083