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In vitro antioxidant and bioactive properties of corn (Zea mays L.)

机译:体外抗氧化剂和玉米生物活性性质(Zea mays L.)

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摘要

This study investigated the antioxidant activity, inhibitory effects on a-glucosidase, angiotensin-converting enzyme (ACE) and aldose reductase (AR) of five types of corn cultivars (white, yellow, black, red and purple). The total phenolic content (TPC) and total anthocyanins (TA) ranged from 146.28 to 598.71 mg GAE/g and from 1.66 to 446.38 mg C3G/100 g respectively. All tested extracts were capable of scavenging peroxynitrite (ONOO-) at level of 1.6 mg/ mL of TPC to extents ranging from 41.29 to 86.23%. All of the extracts also inhibited the activity of a-glucosidase with efficacies values from 17.75 to 69.83% whereas moderate inhibitory activity ACE (17.22-42.4%) and AR inhibitory activity from 22.7 to 87.2% was shown. Differences in inhibition of peroxynitrite formation and inhibition of enzymatic activities appeared to be dependent on the profile of total phenolic compounds, anthocyanins and another non phenolic compounds present in each type of corn.
机译:本研究研究了抗氧化活性,对葡糖酶,血管紧张素转化酶(ACE)和醛糖还原酶(AR)的抗氧化活性,抑制作用的五种玉米品种(白色,黄色,黑色,红色和紫色)。 总酚含量(TPC)和总花青素(TA)分别为146.28至598.71mg,分别为1.66至446.38mg C3G / 100g。 所有测试的提取物都能够将过氧硝酸盐(ONOO-)施加至1.6mg / ml的TPC水平,以距离41.29至86.23%的范围。 所有提取物还抑制了A-葡萄糖苷酶的活性,效率值从17.75%到69.83%,而中等抑制活性ACE(17.22-42.4%)和AR抑制活性为22.7至87.2%。 抑制过氧硝酸盐形成和酶活性抑制的差异似乎依赖于每种类型玉米中存在的总酚类化合物,花青素和另一种非酚类化合物的轮廓。

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