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Analysis of plant polyphenols by hig...

Ansong, Godfred.

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Analysis of plant polyphenols by high-performance liquid chromatography/mass spectrometry and protein binding.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Analysis of plant polyphenols by high-performance liquid chromatography/mass spectrometry and protein binding./
作者:	Ansong, Godfred.
面頁冊數:	72 p.
附註:	Source: Masters Abstracts International, Volume: 42-06, page: 2204.
Contained By:	Masters Abstracts International42-06.
標題:	Chemistry, Biochemistry. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1419587
ISBN:	0496243406

Analysis of plant polyphenols by high-performance liquid chromatography/mass spectrometry and protein binding.
Ansong, Godfred.

Analysis of plant polyphenols by high-performance liquid chromatography/mass spectrometry and protein binding. - 72 p.

Source: Masters Abstracts International, Volume: 42-06, page: 2204.

Thesis (M.S.)--Miami University, 2004.

The high molecular weight plant polyphenols known as tannins have both positive and negative effects on human and animal health. Tannin constituents from natural sources have been implicated in astringency of wine, inhibition of carcinogenesis and control of diabetes. The main tannin constituents in white oak, black raspberry and tannic acid were analyzed with HPLC and mass spectrometry. Vescalagin, castalagin, grandinin and roburin E, four ellagitannins purified from the white oak were characterized with a preliminary radiolabeled protein-binding assay. Sanguiin H-10 and its precursors were identified as the main ellagitannins in black raspberry. A hexagalloyl constituent of tannic acid was identified as the active constituent likely to have insulin-mimetic activity. A simple method was devised to assess the protein binding capacities of plant polyphenols by immobilizing unfractionated plant extracts on filter paper disks, and reacting with radiolabeled BSA. Protein binding was proportional to the amount of immobilized extract.

ISBN: 0496243406Subjects--Topical Terms:

1017722
Chemistry, Biochemistry.

Analysis of plant polyphenols by high-performance liquid chromatography/mass spectrometry and protein binding.
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502 $a Thesis (M.S.)--Miami University, 2004.
520 $a The high molecular weight plant polyphenols known as tannins have both positive and negative effects on human and animal health. Tannin constituents from natural sources have been implicated in astringency of wine, inhibition of carcinogenesis and control of diabetes. The main tannin constituents in white oak, black raspberry and tannic acid were analyzed with HPLC and mass spectrometry. Vescalagin, castalagin, grandinin and roburin E, four ellagitannins purified from the white oak were characterized with a preliminary radiolabeled protein-binding assay. Sanguiin H-10 and its precursors were identified as the main ellagitannins in black raspberry. A hexagalloyl constituent of tannic acid was identified as the active constituent likely to have insulin-mimetic activity. A simple method was devised to assess the protein binding capacities of plant polyphenols by immobilizing unfractionated plant extracts on filter paper disks, and reacting with radiolabeled BSA. Protein binding was proportional to the amount of immobilized extract.
590 $a School code: 0126.
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650 4 $a Agriculture, Animal Culture and Nutrition. $3 1017857
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