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- W2024005637 abstract "본 연구에서는 동양배에 함유된 유용성분을 분자수준에서 밝히고자, 우리나라에서 가장 많이 섭취되고 있는 품종 중의 하나인 추황배를 대상으로 배 과피의 MeOH 추출물을 해리성을 이용하여 용매분획하였다. 얻어진 획분들을 대상으로 항산화 활성에 초점을 맞추어 open column chromatography와 high performance liquid chromatography를 행하여 3종의 항산화 화합물을 단리하였다, 그 결과, BuOH 획분으로부터 화합물 1을, EtOAc-산성 획분으로부터 화합물 2를, 그리고 EtOAc-페놀성 획분으로부터 화합물 3을 단리하고, 각각 NMR 및 MS 분석을 행하여 구조해석을 행하였다. 그 결과, 화합물 1-3은 각각 2-carboxyl 4(1H)-quinolinone (kynurenic acid, 화합물 1), cis-coumaric acid (화합물 2), 그리고 vanillin(화합물 3)으로 동정되었다. 이 3종의 화합물 모두 본 연구에 의해 배로부터 처음 동정되었다. 본 연구결과가 배의 유용성 및 기능성 연구를 위한 기초자료로 활용되길 기대한다. Three low-molecular compounds were isolated from methanol extracts of pear (Pyrus pyrifolia N. cv. Chuhwangbae) fruit peels using solvent fractionation, various types of column chromatogrphy (Diaion HP-20, Sephadex LH-20, and silica gel), and high performance liquid chromatography with an assay guided by 1,1-diphenyl-2-picrylhydrazyl radical-scavenging activity. The isolated compounds were identified as 2-carboxyl-4(1H)-quinolinone (kynurenic acid, 1) from butanol fraction, cis-p-coumaric acid (2) from ethyl acetate-acidic fraction, and vanillin (3) from the ethyl acetate-phenolic fraction, respectively. These isolated compounds were confirmed on the basis of the spectroscopic data of electrospray ionization mass spectrometry and nuclear magnetic resonance. This is the first time that compounds 1-3 were isolated and identified in pear." @default.
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- W2024005637 date "2013-04-30" @default.
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- W2024005637 title "Isolation and Identification of 3 Low-molecular Compounds from Pear (Pyrus pyrifolia Nakai cv. Chuhwangbae) Fruit Peel" @default.
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- W2024005637 doi "https://doi.org/10.9721/kjfst.2013.45.2.174" @default.
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