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http://dx.doi.org/10.5352/JLS.2003.13.2.168

Studies on Antioxidative Activity of Green Tea Extracts in Medilite-Extraction Water  

차재영 (동아대학교 응용생명공학부)
조영수 (동아대학교 응용생명공학부)
Publication Information
Journal of Life Science / v.13, no.2, 2003 , pp. 168-174 More about this Journal
Abstract
The chemical compositions and antioxidant activity of green tea extracts in medilite-extraction water were compared to that of distilled water(DW). Antioxidant activity was fetermined by the formation of thiobarbituric acid reactive substances (TBARS) in rat liver homogenates and microsomes and the scavenging activity of free radicals by DPPH ($\alpha$, $\alpha$'-diphenyl-$\beta$-picrylhydrazyl). The order of total polyphenolic compounds and extracted yield by extracts was medilite 325 mesh-extraction water, medilite 600 mesh-extraction water and distilled water(DW). The ranges of scavenging activity of green tea extracts in DPPH method were 60.95% - 64.51%. The inhibition ratios of TBARS formation in the rat liver homogenates and microsomal fractions were significantly lower with green tea extracts by DW-extraction than with both medilite 325 mesh and 600 mesh-extraction water. The concentration of iron ion of water containing medilite 325 mesh and green tea extracts and of water containing medilite 600 mesh and green tea extracts were significantly higher compared to DW. Therefore, this result suggested that enhanced concentration of iron ion in green tea extracts by medilite-extraction water containing high iron ion content was associated with enhanced peroxidation of the rat liver microsomal fractions. These results showed that total polyphenolic compounds, the % of yield and mineral compounds of green tea extracts were increased using medilite 325 mesh and 600 mesh-extraction water.
Keywords
green tea; DPPH; polyphenolic compound; mineral;
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연도 인용수 순위
1 Nutrients adsorption from seawater by new porous carrier made from zeolitized fly ash and slag /
[ Khelifi,O.;Y.Kozuki;H.Murakami;K.Kurata;M.Nishioka ] / Mar. Pollut Bull   DOI   ScienceOn
2 Effect of potato polyphenolics on lipid peroxidation in rats /
[ Cha,J.Y.;Y.S.Cho ] / J. Korean Soc. Food Sci. Nutr.   과학기술학회마을
3 Effects of green tea supplemented with indigestible dextrin on postprandial levels of blood glucose and insuline in human subjects /
[ Unno,T.;K.Nagata;T.Horiguchi ] / J. Nutr. Food
4 Effect of bentonites on fluorometric selenium determination /
[ Olson,O.E.;A.A.Herr;I.S.Palmer ] / J. Assoc. Off. Anal. Chem.
5 Green tea catechins and vitamin E inhibit angiogenesis of human microvascular endothelial cells through suppression of IL-8 production /
[ Tang,F.Y.;M.Meydani ] / Nutr. Cancer   DOI   ScienceOn
6 Lipid peroxides and their relatives in organs of female rats fed diets containing excessive heme iron /
[ Murakami,A.;M.Kishimoto;M.Kawaguchi;T.Matsuura;T.Ichikawa ] / J. Jpn Soc. Nutr. Food Sci.   DOI   ScienceOn
7 Phenolic constituents of Ptunus domestica. I. Quantitative analysis of phenolic constituents /
[ Swain,T.;W.E.Hillis;M.Oritega ] / J. Sci. Food Agric.
8 Effect of water-soluble extract from leaves of Morus alba and Cudrania tricuspidata on the lipid peroxidation in tissues of rats /
[ Cha,J.Y.;H.J.Kim;Y.S.Cho ] / J. Korean Soc. Food Sci. Nutr.   과학기술학회마을
9 Changes of chemical components in persimmon leaves during growth for processing persimmon leaves tea /
[ Chung,S.H.;K.D.Moon;J.K.Kim;J.H.Seong;T.H.Sohon ] / Korean J. Food Sci. Technol.
10 /
[ Johnson,J.E.;R.Walford;D.Harma;J.Miquel ] / Free radicals, aging and degenerative disease
11 Antioxidant determination by the use of a stable free radical /
[ Blois,M.S. ] / Nature
12 Green tea or rosemary extract added to foods reduces nonheme-iron absorption /
[ Samman,S.;B.Sandstrom;M.B.Toft;K.Bukhave;M.Jensen;S.S.Sorensen;M.Hansen ] / Am. J. Clin. Nutr.
13 Pharmaceutical use of some activated bentonites(author's transl) /
[ Grecu,I.S.Barbu;L.Ghizdavu ] / Ann. Pharm Fr.
14 The role of superoxide and hydroxyl radical in the degradation of hyaluronic acid induced by metal ions and by ascorbic acid /
[ Wong,S.F.;B.Holliwell;R.Richimond;W.R.Skowroneck ] / J. Inorganic Biochem.   DOI   ScienceOn
15 Analysis of phenolic substances content on Korea plant foods /
[ Lee,J.H.;S.R.Lee ] / Korean J. Food Sci. Technol.
16 Lipid peroxidation effects of a novel iron compound, ferric maltol;A comparison with ferrous sulphate /
[ Singh,R.K.;M.A.Barrand ] / J. Pharm. Pharmacol.   DOI
17 Comparison of the antioxidant activity of rooibos tea with green, oolong and black tea /
[ Gadow,A.V.;E.Joubert;C.F.Hansmann ] / Food Chem.   DOI   ScienceOn
18 Changes in chemical compositions of green tea under the different extraction conditions /
[ Choi,H.J.;W.S.Lee;S.J.Hwang;I.J.Lee;D.H.Shin;H.Y.Kim;K.U.Kim ] / Korean J. Life Sci.   과학기술학회마을
19 Effect of Quartz porphyry supplemented diet on mineral content in tissues of common finch /
[ Cha,J.Y.;Y.S.Cho;J.B.Ihm;D.J.Kim ] / Korean J. Life Sci.   과학기술학회마을
20 Changes in hydrogen donating activities of the extract from Holoeion maximowiczii root by drying methods /
[ Choi,D.Y.;J.H.Do;K.S.Lee;C.B.Yang ] / Korean J. Food Sci. Technol.
21 Effect of dietary zeolite A and graded levels of calcium on growth, plasma, and tibia characteristics of chicks /
[ Watkins,L.;L.L.Southern ] / Poultry Sci.   DOI   ScienceOn
22 Time course of change in hepatic lipid peroxide level in iron-deficient rats /
[ Chiba,H.;M.Takasaki;R.Masuyama;M.Uehara;Y.Kanke;K.Suzuki;S.Goto ] / J. Jpn Soc. Nutr. Food Sci.   DOI
23 /
[ A.O.A.C. ] / Official methods of analysis(12th ed.)
24 Aritioxidant activity of several commercial teas and their components /
[ Kajimoto,G.;C.Mutakami ] / J. Japan Soc. Nutr. Food Sci.   DOI
25 Iron absorption from bread in humans: inhibiting effects of cereal fiber, phytate and inositol phosphates with different numbers of phosphate groups /
[ Brune,M.;L.Rossander-Hulten;L.Hallberg;A.Gleerup;A.S.Sandberg ] / J. Nutr.
26 Effect of green tea catechin on plasma cholesterol level in cholesterol fed rats /
[ Muramatsu;K.M.Fukuyo;Y.Hara ] / J. Nutr. Sci. Vitaminol.   DOI
27 Antioxidative activities and contents of polyphenolic compound of Cudrania tricuspidata /
[ Cha,J.Y.;H.J.Kim;C.H.Chung;Y.S.Cho ] / J. Korean Soc. Food Sci. Nutr.   과학기술학회마을
28 Chemicals, drugs and lipid peroxidation /
[ Plaa,G.L.;H.Witschi ] / Annu. Rev. Pharmacol. Toxical.   DOI   ScienceOn