Antioxidant activity and free radical-scavenging capacity of extracts from guava (Psidium guajava L.) leaves

作者: Hui-Yin Chen , Gow-Chin Yen

DOI: 10.1016/J.FOODCHEM.2006.02.047

关键词:

摘要: Abstract The objectives of this study were to the antioxidant activity and free radical-scavenging effects extracts from guava leaves dried fruit. results indicated that 94.4–96.2% linoleic acid oxidation was inhibited by addition leaf tea at a concentration 100 μg/ml. fruit exhibited weaker than did extracts. also demonstrated scavenging on ABTS + radicals superoxide anion increased with increasing concentrations. displayed significant ability peroxyl radicals. However, decreased when extract greater 10 μg/ml. various cultivars more commercial chromatogram data contained phenolic acids, such as ferulic acid, which appeared be responsible for their activity. Correlation analysis there linear relationship between potency, content compounds

参考文章(52)
Alexander N. Glazer, [14] Phycoerythrin fluorescence-based assay for reactive oxygen species Methods in Enzymology. ,vol. 186, pp. 161- 168 ,(1990) , 10.1016/0076-6879(90)86106-6
ALAN Y. W. LEE, STEPHEN S. M. CHUNG, Contributions of polyol pathway to oxidative stress in diabetic cataract The FASEB Journal. ,vol. 13, pp. 23- 30 ,(1999) , 10.1096/FASEBJ.13.1.23
V W Bowry, K U Ingold, R Stocker, Vitamin E in human low-density lipoprotein. When and how this antioxidant becomes a pro-oxidant. Biochemical Journal. ,vol. 288, pp. 341- 344 ,(1992) , 10.1042/BJ2880341
K C Chang, S Y Chung, H J Ko, H K Noh, J S Suh, B W Seong, K W Chun, W S Chong, S H Kim, Possible superoxide radical-induced alteration of vascular reactivity in aortas from streptozotocin-treated rats Journal of Pharmacology and Experimental Therapeutics. ,vol. 266, pp. 992- 1000 ,(1993)
Vincenzo Matteo, Ennio Esposito, Biochemical and therapeutic effects of antioxidants in the treatment of Alzheimer's disease, Parkinson's disease, and amyotrophic lateral sclerosis. Current Drug Targets - Cns & Neurological Disorders. ,vol. 2, pp. 95- 107 ,(2003) , 10.2174/1568007033482959
J.P. Freitas, P.M. Filipe, F.Guerra Rodrigo, Lipid peroxidation in type 2 normolipidemic diabetic patients Diabetes Research and Clinical Practice. ,vol. 36, pp. 71- 75 ,(1997) , 10.1016/S0168-8227(97)00032-6
KEVIN D. CROFT, The Chemistry and Biological Effects of Flavonoids and Phenolic Acidsa Annals of the New York Academy of Sciences. ,vol. 854, pp. 435- 442 ,(1998) , 10.1111/J.1749-6632.1998.TB09922.X
Tetsuo Ohkuwa, Yuzo Sato, Makoto Naoi, Hydroxyl radical formation in diabetic rats induced by streptozotocin. Life Sciences. ,vol. 56, pp. 1789- 1798 ,(1995) , 10.1016/0024-3205(95)00150-5
Sushil K. Jain, Robert McVie, John J Jaramillo, Melissa Palmer, Tiney Smith, Z. D. Meachum, Rufus L. Little, The effect of modest vitamin E supplementation on lipid peroxidation products and other cardiovascular risk factors in diabetic patients. Lipids. ,vol. 31, ,(1996) , 10.1007/BF02637057