Korean Journal of Microbiology (미생물학회지)

The Microbiological Society of Korea (한국미생물학회)
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Antioxidant Activities and Monacolin K Production of Fermented Chinese Yam by Monascus sp. MK805

Monascus sp. MK805 균주를 이용한 발효마의 Monacolin K 생산과 항산화 활성

  • Jeon, Chun-Pyo (Department of Medicine Quality Analysis, Andong Science College)
  • 전춘표 (안동과학대학교 의약품질분석과)
  • Received : 2014.01.16
  • Accepted : 2014.02.18
  • Published : 2014.03.31
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Abstract

This study was carried out to investigate the characteristics of fermented chinese yam and rice (Dioscorea japonica, Dioscorea batatas, Dioscorea opposita, Rice, FCYR) using Monascus sp. MK805. The extracts from FCYR were measured to examine pigments, antioxidant activities were investigated through DPPH radical scavenging activity, total polyphenol and flavonoid contents, reducing power. Also it was investigated monacolin K productivity by FCYR. Pigments productivity (yellow, orange and red) were 26.2, 13.9, 17.3 at Dioscorea japonica, 41.9, 22.6, 53.2 at Dioscorea batatas, 12.5, 7.5, 9.7 at Dioscorea opposita and 10.1, 7.7, 10.2 at rice, respectively. DPPH radical scavenging activity of FCYR was about 69.7, 79.6, 57.8, and 42.3%, total polyphenol contents of FCYR was about 480.6, 658.7, 379.3, and 212.9 mg/kg, total flavonoid contents of FCYR was about 342.5, 448.4, 235.2, and 168.7 mg/kg, reducing power of FCYR was about 1.57, 2.14, 1.14, and 0.35 (OD at 700 nm), respectively. And then monacolin K productivity of FCYR was about 453.8, 509.5, 332.2, and 263.2 mg/kg, respectively.

본 연구는 Monascus sp. MK805 균주를 이용하여 장마, 병마, 둥근마 및 쌀의 발효 특성을 조사하기 위하여 실시하였다. 발효마로부터 색소, 항산화활성으로 DPPH radical 소거활성, 총 polyphenol 및 flavonoid 함량, 환원력을 조사하였다. 또한 발효마로부터 monacolin K 생산성을 조사하였다. 색소생산량은 장마, 병마, 둥근마의 경우 yellow, orange 및 red 색소의 흡광도 값이 장마는 26.2, 13.9 및 17.3, 병마는 41.9, 22.6 및 53.2, 둥근마는 12.5, 7.5 및 9.7로 조사되었으며, 대조군으로 사용된 쌀의 색소의 흡광도 값이 각각 10.1, 7.7 및 10.2로 나타났다. DPPH radical 소거활성은 장마, 병마, 둥근마의 경우 발효 시 각각 69.7, 79.6 및 57.8%로 조사되었고, 쌀의 경우에는 42.3%의 DPPH radical 소거활성을 나타내었다. 총 polyphenol 함량을 측정한 결과 장마, 병마, 둥근마 및 쌀은 각각 480.6, 658.7, 379.3, 212.9 mg/kg으로 조사되었으며, 총 flavonoid함량은 각각 342.5, 448.4, 235.2, 168.7 mg/kg으로 나타났다. 환원력은 장마, 병마, 둥근마 및 쌀은 각각 1.57, 2.14, 1.14 및 0.35의 흡광도 값을 나타내었으며, monacolin K 함량을 측정한 결과에서는 장마, 병마, 둥근마 및 쌀은 각각 453.8, 509.5, 332.2 및 263.2 mg/kg으로 나타났다.

Keywords

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