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首页> 外文期刊>Journal of Functional Foods >Anthocyanin-rich phenolic extracts of purple root vegetables inhibit pro-inflammatory cytokines induced by H2O2 and enhance antioxidant enzyme activities in Caco-2 cells
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Anthocyanin-rich phenolic extracts of purple root vegetables inhibit pro-inflammatory cytokines induced by H2O2 and enhance antioxidant enzyme activities in Caco-2 cells

机译:紫色根菜类植物富含花青素的酚类提取物抑制H2O2诱导的促炎细胞因子并增强Caco-2细胞中的抗氧化酶活性

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摘要

Highly pigmented root vegetables are ideal sources of phytochemical antioxidants particularly anthocyanins. The objective of this study was to characterise the phenolic composition in a purple variety of carrot and potato by examining the aglycone profiles and their antioxidative stress activity. Cyanidin and petunidin were the dominant phenolics among 11 identified aglycones in carrot and potato, respectively. The anthocyanin-rich phenolic extracts not only showed strong antioxidant activities by direct radical scavenging, but more importantly they significantly reduced H2O2-induced interleukins (IL)-1 beta, IL-6, IL-8 and tumour necrosis factor (TNF)-alpha in Caco-2 cells. In addition, the extracts were able to restore the intrinsic antioxidant defences as seen in significantly elevated antioxidant enzyme activities and glutathione concentration. These results suggest that purple varieties of carrots and potatoes rich in anthocyanins can ameliorate oxidative stress mediated intestinal inflammatory responses, leading to restoration of the impaired redox balance, ultimately improved health. (C) 2016 Published by Elsevier Ltd.
机译:高色素的根菜是植物化学抗氧化剂,特别是花青素的理想来源。这项研究的目的是通过检查糖苷配基的概况及其抗氧化应激活性来表征紫色胡萝卜和马铃薯中的酚类成分。在胡萝卜和马铃薯中11种已鉴定的糖苷配基中,Cyanidin和petunidin是主要的酚类物质。富含花青素的酚类提取物不仅通过直接自由基清除显示出强大的抗氧化活性,而且更重要的是,它们显着降低了H2O2诱导的白介素(IL)-1 beta,IL-6,IL-8和肿瘤坏死因子(TNF)-alpha在Caco-2细胞中此外,从抗氧化酶活性和谷胱甘肽浓度显着提高中可以看出,提取物能够恢复固有的抗氧化防御能力。这些结果表明,富含花青素的紫色胡萝卜和马铃薯品种可以改善氧化应激介导的肠道炎症反应,从而恢复受损的氧化还原平衡,最终改善健康状况。 (C)2016由Elsevier Ltd.出版

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