Korean Journal of Organic Agriculture (한국유기농업학회지)

Korean Association of Organic Agriculture (한국유기농업학회)
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Analysis of Antibacterial, Antioxidant, and In Vitro Methane Mitigation Activities of Fermented Scutellaria baicalensis Georgi Extract

발효 황금 뿌리 추출물의 항균, 항산화 효과 및 메탄가스 저감 효과 In Vitro

  • Marbun, Tabita Dameria (Department of Animal Science, Kyungpook National University) ;
  • Song, Jaeyong (Department of Animal Science, Kyungpook National University) ;
  • Lee, Kihwan (Department of Animal Science, Kyungpook National University) ;
  • Kim, Su Yeon (Department of Animal Science, Kyungpook National University) ;
  • Kang, Juhui (Department of Animal Science, Kyungpook National University) ;
  • Lee, Sang Moo (Department of Animal Science, Kyungpook National University) ;
  • Choi, Young Min (Department of Animal Science, Kyungpook National University) ;
  • Cho, Sangbuem (CALSNBT Co. Ltd.) ;
  • Bae, Guiseck (Department of Animal Science and Technology, Chung-Ang University) ;
  • Chang, Moon Baek (Department of Animal Science and Technology, Chung-Ang University) ;
  • Kim, Eun Joong (Department of Animal Science, Kyungpook National University)
  • Received : 2016.07.08
  • Accepted : 2016.09.26
  • Published : 2016.11.30
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Abstract

This study was conducted to investigate the antibacterial, antioxidant, and in vitro greenhouse gas mitigation activities of fermented Scutellaria baicalensis Georgi extract. Seven starter cultures were used, comprising four of lactic acid bacteria and three of Saccharomyces cerevisiae. Ten grams of S. baicalensis Georgi powder was diluted in 90 mL autoclaved MRS broth. Each seed culture was inoculated with 3-10% (v/v) S. baicalensis Georgi MRS broth and incubated at $30^{\circ}C$ for 48 h. Among the starter cultures used, only Lactobacillus plantarum EJ43 could withstand the fermentation conditions. This fermentation broth was dried and extracted with ethanol to assess its antibacterial, antioxidant, and in vitro methane mitigation activities. The extract of S. baicalensis Georgi fermented by L. plantarum EJ43 (SBLp) showed higher antibacterial activity (bigger clear zone) compared to the unfermented S. baicalensis Georgi extract (SB0). SBLp also presented 1.2 folds higher antioxidant activity than SB0. During in vitro rumen fermentation, SBLp showed reduction in methane production compared to SB0 or the control. In conclusion, fermentation by L. plantarum EJ43 may enhance antibacterial and antioxidant activities of S. baicalensis Georgi and decrease enteric methane production.

Keywords

References

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