Microbiology and Biotechnology Letters (한국미생물·생명공학회지)

The Korean Society for Microbiology and Biotechnology (한국미생물·생명공학회)
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Solid Fermentation of Medicinal Herb Using Phellinus baumii Mycelium and Anti-thrombin and Anti-oxidation Activity of its Methanol Extract

장수상황버섯 균사체를 이용한 한약재의 고체발효 및 메탄올 추출물의 트롬빈 저해 활성과 항산화 활성

  • Shin, Yong-Kyu (Dept. of Microbiology, Kyungpook National University) ;
  • Jang, Han-Su (Gyeongbuk Institute for Bioindustry) ;
  • Kim, Jong-Sik (Dept. of Biological Science, Andong National University) ;
  • Ryu, Hee-Young (Dept. of Food and Nutrition, Andong National University) ;
  • Kim, Jong-Kuk (Dept. of Microbiology, Kyungpook National University) ;
  • Kwun, In-Sook (Dept. of Food and Nutrition, Andong National University) ;
  • Sohn, Ho-Yong (Dept. of Food and Nutrition, Andong National University)
  • Published : 2008.09.28
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Abstract

To produce bioactivity-strengthen medicinal herbs, the 36 medicinal herbs which have antioxidation or blood circulation activity, were solid fermented using Phellinus baumii mycelium. Most of medicinal herbs, except Chrysanthemum indicum (flower), Zizyphus jujuba Miller (fructus), Aconitum koreanum R. Raymond (root), Magnolia denu-data (flower), and Polygonatum sibiricum Redt (root bark), showed good fermentation at $25^{\circ}C$ for 20 days under 90% of relative humidity. The poor fermentations of the herbs could be explained by lack of nutrient, structural rigidity, and the content of antifungal substance. After fermentation, the average water content of herbs were increased to $67.21{\pm}11.43%$ from $30.84{\pm}15.67%$, but the average pH and average methanol extraction ratio were slightly decreased to $11.16{\pm}7.06%$ and $4.83{\pm}0.73$ from $13.91{\pm}12.22%$ and $5.06{\pm}0.87$, respectively. The analysis of thrombin inhibition and DPPH scavenging activity of the methanol extracts of herbs showed that thrombin inhibition activities of the fermented Drynaria fortunei Kunze, Melia azedarach var. japonica, Prunus persica and Orostachys japonicus, and DPPH scavenging activities of the fermented Polygala tenuifolia, Scrophularia buergeriana, Angelica dahurica, Drynariafortunei Kunze, Cyperus rotundus, and Boschniakia rossica were increased as compared with those activities of non-fermented its cognate herbs. Our results suggest that the production of bioactivity-strengthen medicinal herbs is possible by solid fermentation of Phellinus baumii mycelium, as fermented Drynaria fortunei Kunze showed increased antioxidant and thrombin inhibitory activities than those of non-fermented herbs.

장수상황버섯(Phellinus baumii) 균사체를 이용한 한약재의 고체발효를 통한 기능성 강화 한약재 생산을 목적으로, 항산화 활성 또는 혈류 개선활성이 우수하다고 알려진 36종의 한약재를 멸균 후, 장수상황버섯 균사체를 접종하여 고체발효 가능성을 검토하였다. $2^{\circ}C$, 상대습도 90% 배양기에서 20일간 발효시킨 결과, 감국, 대추, 백부자, 신이 및 황정을 제외한 31종에서 양호한 발효가 진행되었으며, 발효 가능여부는 한약재 식물체의 사용부위의 구조적 견고성, 영양조건 및 항진균 활성 등과 연관되리라 판단된다. 한약재의 고체발효 이후, 발효전과 비교하였을 때 평균 수분함량은 $30.84{\pm}15.67%$에서 $67.21{\pm}11.43%$로 2.2배 증대되었으며, 평균 메탄올 추출효율과 평균 pH는 $13.91{\pm}12.22%$ 및 $5.06{\pm}0.87$에서 각각 $11.16{\pm}7.06%$ 및 $4.83{\pm}0.73$ 다소 감소하는 경향을 나타내었다. 각각의 메탄올 추출물을 이용한 항혈전 활성 및 항산화 활성을 측정한 결과, 골쇄보, 천련자, 도엽, 와송의 경우에는 트롬빈 저해 활성이 각각 발효전에 비하여 31.38, 23.63, 22.57, 13.85% 증가되었으며, 원지, 현삼, 백지, 향부자, 골쇄보 및 육종용에서는 DPPH 소거능이 발효전에 비해 각각 58.9, 49.8, 48.1, 32.8, 24.1, 20.7% 증가되어 장수상황버섯 균사체 발효 한약재의 긍정적 생리활성 증가를 확인하였다. 본 연구결과는 상황버섯 균사체를 이용한 한약재의 고체발효를 통해, 특정 기능성의 강화 원재료를 생산할 수 있으며, 골쇄보의 경우와 같이 항혈전 활성 및 항산화 활성이 동시에 증대된 한약재 생산이 가능함을 제시하고 있다.

Keywords

References

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