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녹용추출물의 유산균 발효에 의한 플라보노이드 생성과 항산화활성 효과

Flavonoid production and antioxidant activity effect by lactic acid bacteria fermentation of deer antler extract

  • 김현경 (서원대학교 식품공학과)
  • 투고 : 2022.02.28
  • 심사 : 2022.03.08
  • 발행 : 2022.03.31

초록

녹용 기능성 소재 개발 연구의 일환으로 녹용 추출물의 유산균 발효를 수행하였다. 총 폴리페놀과 플라보노이드 함량이 증가하고 항산화 활성이 강화된 기능성 소재를 개발하고자 하였다. 유산균 발효중 증식수, 총 폴리페놀 및 총 플라보노이드 함량, DPPH 라디칼 소거 및 항산화 활성을 평가하였다. 녹용 추출물 기질에 이들 4종의 유산균을 첨가한 결과, 측정된 유산균 수는 2.04~5.00×107이었다. 한편, 녹용 추출물에 프로테아제(Baciullus amyloliquefaciens culture: Ma×azyme NNP DS)를 첨가하여 함유된 단백질의 펩타이드 결합을 분해하였다. 그런 다음 이들 4종의 유산균을 첨가하여 배양한 결과 유산균의 수는 2.84107~2.21108로 증가하였다. 총 폴리페놀 함량은 유산균 발효추출물에서 4.82~6.26g/mL이었으며, 프로테아제 효소와 젖산발효 반응 후 14.27~20.58g/mL로 증가하였다. 총 플라보노이드 함량은 유산균 발효추출물에서 1.52~2.21 g/ml이었고, 프로테아제 반응 및 발효 후에는 5.59 ~ 8.11 mg/mL로 증가하였다. 유산균 발효 추출물의 DPPH 라디칼 소거능은 17.03~22.75%였으나, protease 반응과 발효 후에는 32.82~42.90%로 현저히 증가하였다.

As part of research on the development of functional materials for antlers, lactic acid fermentation of antler extract was performed. It was intended to develop a functional material with enhanced total polyphenol and flavonoid content and enhanced antioxidant activity. During the fermentation of lactic acid bacteria, the number of proliferation, total polyphenol and total flavonoid content, DPPH radical scavenging and antioxidant activity were quantified and evaluated. As a result of adding these four types of lactic acid bacteria to the antler water extract substrate, the number of lactic acid bacteria measured was 2.04~5.00×107. Meanwhile, a protease (Baciullus amyloliquefaciens culture: Maxazyme NNP DS) was added to the antler extract to decompose the peptide bonds of the contained proteins. Then, these four types of lactic acid bacteria were added and the number of lactic acid bacteria increased to 2.84×107~2.21×108 as the result of culture. The total polyphenol contents were 4.82~6.26g/mL in the lactic acid bacteria fermentation extracts, and after the reaction of protease enzyme and lactic fermentation, increased to 14.27~20.58 g/mL. The total flavonoid contents were 1.52~2.21 g/ml in the lactic acid bacteria fermentation extracts, and after the protease reaction and fermentation, increased to 5.59~8.11 mg/mL. DPPH radical scavenging activities of lactic acid bacteria fermentation extracts was 17.03~22.75%, but after the protease reaction and fermentation, remarkably increased to 32.82~42.90%.

키워드

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