Journal of Mushroom (한국버섯학회지)

The Korean Society of Mushroom Science (한국버섯학회)
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In vitro antioxidant, anti-diabetic, anti-cholinesterase, tyrosinase and nitric oxide inhibitory potential of fruiting bodies of Coprinellus micaceus

갈색먹물버섯 자실체의 메탄올과 열수추출물의 항산화, 항당뇨, 항콜린에스테라아제, 항티로시나아제 및 Nitric oxide의 저해 효과

  • Nguyen, Trung Kien (Division of Life Sciences, Incheon National University) ;
  • Lee, Min Woong (Department of Life Sciences, Dongguk University) ;
  • Yoon, Ki Nam (Department of Clinical Laboratory Science, Ansan University) ;
  • Kim, Hye Young (Department of Clinical Laboratory Science, Shinsung University) ;
  • Jin, Ga-Heon (Department of Ophthalmic Optics, Shinhan University) ;
  • Choi, Jae-Hyuk (Division of Life Sciences, Incheon National University) ;
  • Im, Kyung Hoan (Division of Life Sciences, Incheon National University) ;
  • Lee, Tae Soo (Division of Life Sciences, Incheon National University)
  • Received : 2014.12.01
  • Accepted : 2014.12.22
  • Published : 2014.12.31
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Abstract

Coprinellus micaceus, belongs to family Psathyrellaceae of Agaricales, Basidiomycota, has been used for edible purposes in the world. This study was initiated to evaluate the antioxidant, anti-diabetic, anti-cholinesterase, anti-tyrosinase, and nitric oxide inhibitory activities of fruiting bodies from C. micaceus extracted with methanol and hot water. The HPLC analysis of phenolic compounds from the mushroom extracts identified 4 phenolic compounds including procatechuic acid, chlorogenic acid, (-)-epicatechin, and naringin. In 1,1-diphenyl-2-picrylhydrazyl(DPPH) free radical scavenging assay, the scavenging activities of methanol and hot water extracts were lower than that of positive control, BHT. The chelating effects of methanol and hot water extracts were significantly higher than that of BHT, the positive control at the all concentrations tested. In the reducing power assay, methanol and hot water extracts exhibited the lower activities compared with positive control at the 0.125-0.2 mg/ml. The methanol and hot water extracts of the mushroom inhibited the ${\alpha}$-glucosidase activity by 62.26% and 67.59%, respectively at the 2.0 mg/ml, while acarbose, the positive control, inhibited the ${\alpha}$-glucosidase activity by 81.81% at the same concentration. In the acetylcholinesterase(AChE) inhibitory activity assay, methanol and hot water extracts of the mushroom inhibited the AChE by 94.64% and 74.19%, respectively at 1.0 mg/ml, whereas the galanthamine, standard drug, inhibited the AChE activity by 97.80% at the same concentration. The tyrosinase inhibitory activities of methanol and hot water extracts were 91.33% and 91.99% at 2.0 mg/ml, while the inhibitory activity of kojic acid, the positive control, was 99.61% at the same concentration. Nitric oxide(NO) production in lipopolysaccahride (LPS) activated RAW 264.7 cells were inhibited by the methanol and hot water extracts in a concentration dependent manner. Therefore, it is concluded that fruiting bodies of C. micaceus contained natural antioxidant, anti-acetylcholinesterase and ${\alpha}$-glucosidase inhibitory, anti-inflammatory, anti-tyrosinase substances which might be used for promoting human health.

본 연구에서는 메탄올과 열수를 이용해 갈색먹물버섯의 자실체로부터 추출한 물질의 항산화, 항당뇨, 항콜린에스테라아제, 항티로시나제와 항염증 효과를 탐색하였다. 고속액체크로마토그래피를 이용해 추출물의 페놀성 화합물을 분석한 결과 procatechuic acid, chlorogenic acid, (-)-epicatechin, naringin 등 총 4종류의 페놀성 화합물이 확인되었다. 항산화 효과 실험에서 DPPH radical 소거능은 양성대조군으로 사용한 BHT에 비해 낮았지만 효과가 비교적 우수하였고, 철 이온을 제거하는 항산화 효과는 메탄올과 열수 추출물이 양성대조군인 BHT에 비해 30% 높게 나타났으나 환원력은 양성대조군에 비해 43% 정도 낮은 것으로 나타났다. 항당뇨 실험에서 ${\alpha}$-amylase와 ${\alpha}$-glucosidase에 대한 메탄올과 열수추출물의 저해효과는 2.0 mg/ml의 농도에서 각각 62.26%와 67.59%를 보여 양성대조군인 acarbose의 81.81%에 비해 낮았다. 아세틸콜린에스테라아제에 대한 메탄올과 열수추출물의 저해효과는 1.0 mg/ml의 농도에서 각각 94.64%와 74.19%를 보여 양성대조군인 galanthamine의 97.80%에 비해 낮았다. 티로시나아제에 대한 메탄올과 열수추출물의 저해효과는 2.0 mg/ml의 농도에서 각각 91.33%와 91.99%를 나타내 양성대조군인 kojic acid의 99.61%와 매우 유사한 효과를 얻었다. 염증저해 효과 실험에서는 RAW 264.7 대식세포가 배양되고 있는 배지에 갈색먹물버섯 자실체의 메탄올과 열수추출물을 각각 전 처리 한 후 염증매개 물질인 LPS를 투여하여 메탄올과 열수 추출물의 NO 생성 저해효과를 조사한 결과 추출물의 농도가 증가함에 따라 생성된 NO의 양이 감소하는 경향을 나타내었다. 따라서 갈색먹물버섯의 자실체에는 항산화, 항당뇨, 항아세틸콜린에스터라제 항티로시나아제 및 항염증 효과를 나타내는 물질이 함유되어 있어서 천연 건강식품으로 이용이 가능할 것으로 사료된다.

Keywords

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