Department of Pharmaceutical Sciences, Faculty of Pharmacy and Nutrition and Health Sciences, University of Calabria, Rende, CS, Italy.
Plant Foods Hum Nutr. 2011 Sep;66(3):261-9. doi: 10.1007/s11130-011-0248-y.
The present study aimed to evaluate for the first time the phenols, flavonoids, carotenoids, capsaicin and dihydrocapsaicin content and the antioxidant and hypoglycemic properties of Capsicum annuum var. acuminatum small and C. annuum var. cerasiferum air-dried fruits. The ethanol extract of C. annuum var. acuminatum small, characterized by the major content of total poliphenols, flavonoids, carotenoids and capsaicinoids, showed the highest radical scavenging activity (IC(50) of 152.9 μg/ml). On the contrary, C. annuum var. cerasiferum showed a significant antioxidant activity evaluated by the β-carotene bleaching test (IC(50) of 3.1 μg/ml). The lipophilic fraction of both C. annuum var. acuminatum and C. annuum var. cerasiferum exhibited an interesting and selective inhibitory activity against α-amylase (IC(50) of 6.9 and 20.1 μg/ml, respectively).
本研究首次评估了小尖辣椒和 C. annuum var. cerasiferum 空气干燥果实的酚类、类黄酮、类胡萝卜素、辣椒素和二氢辣椒素含量以及抗氧化和降血糖特性。小尖辣椒 C. annuum var. acuminatum 的乙醇提取物以总多酚、类黄酮、类胡萝卜素和辣椒素含量为主，表现出最高的自由基清除活性（IC(50)为 152.9 μg/ml）。相反，C. annuum var. cerasiferum 通过β-胡萝卜素漂白试验评估表现出显著的抗氧化活性（IC(50)为 3.1 μg/ml）。小尖辣椒 C. annuum var. acuminatum 和 C. annuum var. cerasiferum 的亲脂部分对α-淀粉酶均表现出有趣的选择性抑制活性（IC(50)分别为 6.9 和 20.1 μg/ml）。
