• Title/Summary/Keyword: pyrone

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Phytochemical Constituents of Climacium dendroides (곧은 나무이끼(Climacium dendroides)의 식물 화학적 성분연구)

  • Nam, Jung-Hwan;Cho, In-Sook;Kim, Su-Jeong;Nam, Chun-Woo;Seo, Jong-Taek;Yoo, Dong-Lim;Kim, Won-Bae;Ryu, Seung-Yeol;Lee, Eung-Ho;Kim, Min-Young;Yoo, Young-Min;Park, Hee-Juhn;Jung, Hyun-Ju
    • Applied Biological Chemistry
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    • v.51 no.2
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    • pp.136-141
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    • 2008
  • The chromatographic separation of organic solvent extracts of liverwort led to the isolation of six compounds. 2-Chromenone (1), 3, 4-dihydroxy-cinnamic acid (2), 3, 3', 4', 5, 7-pentahydroxy-2-phenylchromen-4-one (3), kaemperol-3-O-${\beta}$-D-glucopyranoside (4), 3-[[3-(3,4-Dihydroxyphenyl)-1-oxo-2-propenyl]oxy]-1, 4, 5-trihydroxycyclohexane carboxylic acid (5) and quercetin-3-O-rutinoside (6) were isolated from the methanolic extracts of the all part of Climacium dendroides. Their structure were established by chemical and spectroscopic methods. All compounds were isolated for the first time from this plant Climacium dendroides.

Characterization of Volatile Components in Eoyuk-jang (어육장의 휘발성 향기 성분 특성)

  • Yoon, Mi-Kyung;Choi, A-Reum;Cho, In-Hee;You, Min-Jung;Kim, Ji-Won;Cho, Mi-Sook;Lee, Jong-Mee;Kim, Young-Suk
    • Korean Journal of Food Science and Technology
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    • v.39 no.4
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    • pp.366-371
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    • 2007
  • The volatile components in Eoyuk-jang, a traditional Korean fermented food, were isolated using solvent extraction, and analyzed by gas chromatography-mass spectrometry (GC-MS). A total of 36 components, including 11 aliphatic hydrocarbons, 4 acids, 2 ketones, 5 phenols, 7 alcohols, 1 pyrazines, 4 pyrones and furanones, and 2 miscellaneous components, were found in Eoyuk-jang; among them, butanoic acid was quantitatively dominant. In addition, the aroma-active compounds were determined by gas chromatography-olfactometry (GC-O) using aroma extract dilution analysis (AEDA). A total of 20 aroma-active compounds were detected by GC-O. Butanoic acid (rancid) and methional (cooked potato-like) were the most potent aroma-active compounds with the highest FD factors $(Log_3$, FD), followed by 2-methyl-2-butanol (soysauce-like), 3-hydroxy-2-butanone (buttery), and 2-furanmethanol (burnt sugar-like).

Phytochemical Constituents and Anticancer Activity of Sphagnum palustre Extract (물이끼 추출물의 식물화학적 성분 및 항암활성 연구)

  • Nam, Jung-Hwan;Jeong, Jin-Cheol;Yoon, Young-Ho;Hong, Su-Young;Kim, Su-Jeong;Jin, Yong-Ik;Lee, Ye-Jin;Yoo, Dong-Lim;Lee, Kyung-Tae;Park, Hee-Juhn
    • Korean Journal of Plant Resources
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    • v.24 no.1
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    • pp.40-47
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    • 2011
  • Sphagnum palustre is a semi aquatic moss. S. palustre has been used as Korean traditional medicine to treat cardiac pain and stroke. This study was carried out to analyze phytochemical constituents of S. palustre and investigate the biological activity for the promotion of human health. At first, we isolated seven compounds from the ethanolic extract of this plant, and their structures were characterized by spectroscopic methods. Their structures were characterized to be Coumarin(1), Caffeic acid(2), Quercetin(3), Astragalin(4), Luteolin(5), Chlorogenic acid(6), Rutin(7) were for the first time reported from this source. The ethanol extract from S. palustre which was tested for its anticancer activity against three human tumor cell line by in vitro assay.