Soubir Titov
Biotechnology and Genetic Engineering Discipline, Khulna University, Khulna-9208, Bangladesh.
Sheng Wu Gong Cheng Xue Bao. 2007 Mar;23(2):257-61.
In the present study, antioxidant activities of the fruits of A. heterophyllus, A. squamosa, T. bellirica, S. samarangense, A. carambola and O. europa were investigated. For this, at first matured fruits of them were sliced into small pieces and dried in the sun and finally crushed in a grinder to make powder. Ethanolic extracts of fruit powder were prepared using 99.99% ethanol. The antioxidative activities of these extracts were determined according to their abilities of scavenging 1, 1-diphenyl-2-picrylhydrazyl (DPPH) free radical. It was demonstrated that all the ethanolic extracts of A. heterophyllus, A. squamosa, T. bellirica, S. samarangense, A. caranbola and O. europa showed antioxidant activities. The IC50 of the ethanolic extracts of A. heterophyllus, A. squamosa, T. bellirica, S. samarangense, A. carambola and O. europa were 410, 250, 34, 200, 30 and 76 microg/mL, respectively. Among them, A. carambola showed the highest antioxidant activities followed by T. bellirica, O. europa, S. samarangense, A. squamosa and A. heterophyllus indicating that fruits of A. carambola, T. bellirica and O. europa are very beneficial to human health.
在本研究中，对异叶番荔枝、番荔枝、毛诃子、洋蒲桃、杨桃和油橄榄的果实抗氧化活性进行了研究。为此，首先将它们的成熟果实切成小块，在阳光下晒干，最后在研磨机中粉碎制成粉末。使用99.99%的乙醇制备果粉的乙醇提取物。根据这些提取物清除1,1-二苯基-2-苦基肼（DPPH）自由基的能力来测定其抗氧化活性。结果表明，异叶番荔枝、番荔枝、毛诃子、洋蒲桃、杨桃和油橄榄的所有乙醇提取物均表现出抗氧化活性。异叶番荔枝、番荔枝、毛诃子、洋蒲桃、杨桃和油橄榄乙醇提取物的IC50分别为410、250、34、200、30和76微克/毫升。其中，杨桃表现出最高的抗氧化活性，其次是毛诃子、油橄榄、洋蒲桃、番荔枝和异叶番荔枝，这表明杨桃、毛诃子和油橄榄的果实对人体健康非常有益。
