• 제목/요약/키워드: Lepisorus thunbergianus

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일엽초의 페놀성 물질 (Phenolic Compound from Lepisorus thunbergianus)

  • 이민원
    • 생약학회지
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    • 제29권2호
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    • pp.142-145
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    • 1998
  • Two phenylpropanoids and one flavan 3-ol were isolated from Lepisorus thunbergianus (Polypodiaceae, fern), which is used as folkmedicine. Phenylpropanoids were identified as caffeic acid and chlorogenic acid, and flavan 3-ol was elucidated as (-)-epicatechin 7-O-${\beta}$-D-glucoside by physico-chemical and spectral evidences (HMQC, NOESY).

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일엽초 추출물의 항산화 및 항암 효과 (Antioxidant and Anticancer Properties of the Extracts from Lepisorus thunbergianus (Kaulf.) Ching)

  • ;권용수;임정대;유창연;김명조
    • 한국약용작물학회지
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    • 제23권4호
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    • pp.324-333
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    • 2015
  • Lepisorus thunbergianus (Kaulf.) Ching has been used in folk medicine in Korea. In this study, a L. thunbergianus methanol extract and its fractions were investigated for their antioxidant properties. The results showed that the ethyl acetate and butanol fractions of L. thunbergianus possess potent DPPH radical scavenging activities. Both fractions also possessed reducing power and inhibited reactive oxygen species formation. In addition, the cytotoxic activity of the L. thunbergianus n-hexane fraction (HF) was investigated. The results suggested that the HF remarkably suppressed proliferation of human breast, liver and colon cancer cells. These results demonstrate, for the first time, that L. thunbergianus extract induces apoptosis in SW620 cells, suggesting that L. thunbergianus may have potential as a therapeutic agent for colon cancer.

제주도 난대상록수림에서 착생식물의 다양성 연구 (Diversity of Epiphyte in the Warm Temperate Evergreen Forest. Jejudo)

  • 송국만;강영제;현화자;변광옥
    • 한국환경과학회지
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    • 제22권1호
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    • pp.99-107
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    • 2013
  • This study surveyed the distribution and characteristics of epiphytes and host trees in Jejudo's warm-temperate evergreen forests area. The gathered data will be used for evaluating ecological changes according to climate change. The study found 46 species of epiphytes in Jejudo; 12 of which were species of pteridophytes and 5 species of orchids, totaling 17 species of epiphytes. The appearance frequency was the greatest with Lepisorus thunbergianus, followed by Lemmaphyllum microphyllum and Lepisorus onoei. The area with the greatest diversity of epiphytes was nutmeg tree forests which have the largest number of 2.89 average species. Lemmaphyllum microphyllum had the greatest percent cover of the epiphytes whose importance was found to be the greatest. The factors involved were the epiphytes' diversity index (0.64), maximum species diversity (1.23), evenness (0.52), and dominance (0.48). The study has noted the distribution characteristics of epiphytes according to altitudes above sea level. The Lemmaphyllum microphyllum can survive at an altitude of 600 m above sea level, Lepisorus thunbergianus at 200 - 1,400m above sea level, Lepisorus onoei. at 400 - 1,000 m, and Gonocormus minutus at an altitude above 800 m. The host trees, consisting of Quercus serrata, Castanopsis cuspidata var. sieboldii, and Carpinus laxiflora, stands at 2-19 m high and 2.5 - 120 cm wide, showing diverse kinds of trees and sizes. Jejudo's warm-temperate evergreen forests have lower epiphyte diversity compared with those of subtropical and tropical areas in Japan and China. Based on the characteristics of the host trees order, epiphytes' distribution associated with the altitude above sea level was typical.

민간약 "암초"의 생약학적 연구 (Pharmacognostical Studies on the Folk Medicine 'Am Cho')

  • 박성수;김정묘;박종희
    • 생약학회지
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    • 제32권2호통권125호
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    • pp.128-134
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    • 2001
  • The Korean folk medicine 'Am Cho' has been used as the folk remedy for diuretic, stomach and liver cancer. The botanical origin of the crude drug has not been studied pharmacognostically. To clarify the botanical origin of 'Am Cho', the comparative morphological and anatomical characteristics have been studied of Lepisorus species growing wild in Korea, i.e. L. annuifrons, L. onoei, L. thunbergianus, L. ussuriensis and 'Am Cho' form Korea. As a result, it was clarified that 'Am Cho' from Korea was derived from Lepisorus onoei.

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조계산의 식물상에 관한 연구 (A study on the Flora of the Mt. Joghesan)

  • Kim, Jong-Hong;Suk-Mo Chang
    • 환경위생공학
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    • 제5권1호
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    • pp.63-88
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    • 1990
  • 1980년 7월부터 1981년 12월까지 20회에 걸쳐 전라남도 도립공원인 조계산의 식물상을 조사한 결과는 다음과 같다. 조사지에서의 식물은 총 122과, 424속, 597종 107변종, 10품종이었으며, 식용식물이 204종, 약용식물이 199종 기타 유료섬유자원식물이 30종으로 나타났다. 상록활엽수는 차나무, 조릿대, 붉가시나무 등 22종이고 상록침엽수는 비자나무, 소나무, 금송, 편백나무 등 15종이었다. 식물군락은 참나무류와 서어나무, 조릿대 등 활엽수림으로 우점종은 조록싸리, 덜꿩나무, 물푸레나무, 가막살나무, 개옻나무, 느티나무 등이고 초본류는 참억새, 그령, 지리대사초, 새이삭여뀌, 갈퀴나물, 밀나물, 쑥부쟁이 등이 군락을 이루고 있었다. 조계산에서 선암사지구는 식생이 양호하였으나 타지역은 식물상이 많이 파괴되었으며 굴목치지구는 산화의 피해를 많이 받은 지역으로 산화에 비교적 강한 참나무류가 우점종이었다. 특징 수종은 털조장나무, 박쥐나무, 대팻집나무, 히어리, 노목인 자귀나무, 고로쇠나무, 차나무 군락, 노각나무, 흰말채나무 종이며, 초본으로는 관엽식물인 족제비고사리, 꼬리고사리, 거미고사리, 일엽초 등과 천마, 보춘화, 새이삭여뀌군락 등은 부호가 요망된다. 조계산의 소나무림은 1650~1963년 인력에 의해 대채되었던것이 복구되지 못하여 조계산을 중심으로 접치지구와 오두치지구의 700m이상 지역은 거의 무송림지역으로 되어 있었다.

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