Comparison of the antioxidant activity of roasted tea with green, oolong, and black teas

International Journal of Food Sciences and Nutrition
Eiki SatohMasakazu Nishimura

Abstract

Although the antioxidant properties of green, oolong, and black teas have been well studied, antioxidant activity has not been examined in roasted tea. Therefore, in the current studies, we investigated the antioxidant activity of roasted tea in comparison with those of green, oolong, and black teas. Using water extracts of the various teas, we examined the total phenolic content as well as the antioxidant activities, including the reducing power, the 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity, and the inhibition of hemolysis caused by 2,2'-azo-bis(2-amidinopropane) dihydrochloride (AAPH)-induced lipid oxidation in erythrocyte membranes. The roasted tea contained lower levels of total phenolics than green, oolong, or black tea (green tea > oolong tea > black tea > roasted tea). The relative reducing power and DPPH scavenging activity decreased in the following order: green tea > roasted tea > oolong tea > black tea. Also, green tea was more effective against AAPH-induced erythrocyte hemolysis than other teas (green tea>roasted tea = oolong tea = black tea). These results suggest that roasted tea is beneficial to health, in humans, because of its high antioxidant activity.

References

Sep 8, 1978·Science·I Fridovich
Oct 1, 1995·Archives of Biochemistry and Biophysics·N SalahC Rice-Evans
Jan 1, 1996·Free Radical Biology & Medicine·S A van AckerA Bast
Jan 1, 1996·Free Radical Biology & Medicine·C A Rice-EvansG Paganga
Feb 1, 1996·Journal of Natural Products·E Haslam
Jan 1, 1997·Nutrition Reviews·B Halliwell
Feb 3, 1998·Critical Reviews in Food Science and Nutrition·D A BalentineL C Bouwens
Feb 3, 1998·Critical Reviews in Food Science and Nutrition·S A WisemanB Frei
Oct 29, 1999·Food and Chemical Toxicology : an International Journal Published for the British Industrial Biological Research Association·J H Weisburger
Nov 24, 1999·Journal of Agricultural and Food Chemistry·I F Benzie, Y T Szeto
Aug 17, 2000·International Journal of Food Sciences and Nutrition·S C Langley-Evans
Sep 20, 2000·Journal of Agricultural and Food Chemistry·C Da PortoM C Nicoli
Aug 22, 2001·Journal of Agricultural and Food Chemistry·A YildirimA A Kara
Feb 13, 2002·Journal of the American College of Nutrition·Diane L McKay, Jeffrey B Blumberg
Oct 31, 2002·Journal of Agricultural and Food Chemistry·Qin Yan ZhuCarl L Keen
Feb 18, 2003·Critical Reviews in Food Science and Nutrition·Jane V Higdon, Balz Frei
Jul 1, 1956·Journal of Gerontology·D HARMAN
Dec 3, 2003·Journal of Agricultural and Food Chemistry·Ki Won LeeChang Yong Lee
Dec 4, 2003·Journal of Agricultural and Food Chemistry·Kenichi YanagimotoTakayuki Shibamoto

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Citations

Jan 8, 2013·Bioscience, Biotechnology, and Biochemistry·Yang-Hee HongHyung Joo Suh
Aug 2, 2011·Phytomedicine : International Journal of Phytotherapy and Phytopharmacology·Md Shahidul Islam
Mar 31, 2011·The Journal of Nutritional Biochemistry·Young Jun KimSung-Joon Lee
Jan 20, 2011·Diabetic Medicine : a Journal of the British Diabetic Association·Y HayashinoUNKNOWN HIPOP-OHP Research Group
Sep 1, 2011·Toxicological Research·So-Young Choi, Young-Chul Kim
Sep 14, 2007·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Nihal TurkmenGokce Polat
May 22, 2010·Plant Foods for Human Nutrition·Yong-Seo ParkShela Gorinstein
Sep 15, 2010·Free Radical Research·Agnieszka AugustyniakNeven Zarković
Dec 12, 2019·BMC Complementary and Alternative Medicine·Shuang LiuZhijian Hu
Jun 5, 2013·Journal of Food Science and Technology·Barinderjit SinghBhavesh Chandra Sarkar
Jan 1, 2012·Journal of Chemical Biology·Ryan A HylandJens R Coorssen
Nov 17, 2019·Antioxidants·Justyna PiechockaAnna Jędrusek-Golińska
Jun 7, 2019·Journal of Food Science and Technology·Yahya MaghsoudlouSedighe Tavasoli
Jul 17, 2021·Journal of Zhejiang University. Science. B·Yating LuXiaochang Wang

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