• 제목/요약/키워드: Isovanillin

검색결과 3건 처리시간 0.015초

GC-MS법을 이용한 울금의 퇴화물 분석 (Analysis of the Degradation Products of Turmeric using GC-MS)

  • 안춘순
    • 한국의류학회지
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    • 제31권6호
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    • pp.859-868
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    • 2007
  • 퇴색된 출토복식의 염료를 판정하기 위한 장기적인 프로젝트의 일환으로서 본 연구에서는 울금뿌리로부터 추출한 염료와 추출염료로 염색한 직물을 실험실 조건에서 28일간 퇴화시킨 후 그로부터 생성되는 퇴화 화합물을 가스 크로마토그라피 질량분석법(GC-MS)을 이용해 분석하였다. 2-propenoic acid, 3-(2-hydroxyphenyl)-는 오븐 퇴화시킨 울금추출액 전체에서 지속적으로 검출되었으며, 그 양은 7일 퇴화시료 까지 급격히 감소하다가 그 후 28일까지는 서서히 평형을 유지하였다 울금추출액의 오븐 퇴화 결과 위의 다섯 개 화합물 외에 isovanillin과 vanillic acid가 새롭게 검출되었다. 28일간 퇴화시킨 PER시료에서는 isovanillin과 그 외에 feruloylmethane, 2-propenoic acid, 3-(2-hydroxyphenyl)-, benzoic acid, and vanillic acid가 검출되었다. 울금추출액으로 염색한 직물로부터는 feruloylmethane과 2-propenoic acid, 3-(2-hydroxyphenyl)-가 퇴화물로 검출되었다. PER 방법에서 검출된 isovanillin과 feruloylmethane, 2-propenoic acid, 3-(2-hydroxyphenyl)-, benzoic acid, vanillic acid등은 출토복식 중 울금으로 염색된 직물을 확인하는 데 주요한 대조구 화합물로 사용될 수 있을 것으로 사료된다.

A Benzenoid from the Stem of Acanthopanax senticosus

  • Ryu, Ji-Young;Son, Dong-Wook;Kang, Jung-Il;Kim, Hyun-Su;Kim, Bak-Kwang;Lee, Sang-Hyun
    • Archives of Pharmacal Research
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    • 제27권9호
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    • pp.912-914
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    • 2004
  • Seven compounds were isolated from the stem of Acanthopanax senticosus by repeated col-umn chromatography. Their structures were elucidated as isovanillin (1), (-)-sesamin (2), iso-fraxidin (3), (+)-syringaresinol (4), 5-hydroxymethylfurfural (5), eleutheroside B (6), and eleuth-eroside E (7) by spectral analysis. Among them, isovanillin (1) was isolated for the first time from the family Araliaceae.

Screening of ${\alpha}$-Glucosidase Inhibitory Activity of Vietnamese Medicinal Plants : Isolation of Active Principles from Oroxylum indicum

  • Nguyen, Mai Thanh Thi;Nguyen, Nhan Trung;Nguyen, Hai Xuan;Huynh, Thuy Nghiem Ngoc;Min, Byung-Sun
    • Natural Product Sciences
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    • 제18권1호
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    • pp.47-51
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    • 2012
  • Among 38 Vietnamese medicinal plant extracts investigated for their ${\alpha}$-glucosidase inhibitory activity, 35 extracts showed $IC_{50}$ values below $250{\mu}g/mL$. The MeOH extracts of the heartwood of Oroxylum indicum, the seeds of Caesalpinia sappan, and the fruits of Xanthium strumarium exhibited strong ${\alpha}$-glucosidase inhibitory activity with $IC_{50}$ values less than $50{\mu}g/mL$. Fractionation of the MeOH extract of the heartwood of O. indicum led to the isolation of oroxylin A (1), oroxyloside (2), hispidulin (3), apigenin (4), ficusal (5), balanophonin (6), 2- (1-hydroxymethylethyl)-4H,9H-naphtho[2,3-b]furan-4,9-dione (7), salicylic acid (8), p-hydroxybenzoic acid (9), protocatechuic acid (10), isovanillin (11), and ${\beta}$-hydroxypropiovanillon (12). Compounds 1 - 3, 5, 6, 8, 10, and 12 showed more potent activities, with $IC_{50}$ values ranging from 2.13 to $133.51{\mu}M$, than a positive control acabose ($IC_{50}$, $241.85{\mu}M$). The kinetic study indicated that oroxyloside (2) displayed mixed-type inhibition with inhibition constant (Ki) was $3.56{\mu}M$.