The potato processing industries generate substantial quantities of phenolic-rich potato peels as waste by-products that could be valuable natural sources of antimicrobials and antioxidants in food industry. The present study is aimed to evaluate antimicrobial and antioxidant potential of hydro ethanol extract of peels of three commonly used potato varieties (Kufri Chandramukhi, Kufri Chipsona-3, and Kufri Jyoti) alone and in combination along with cytotoxicity evaluation. At their individual effect, antimicrobial and antioxidant potential of potato peel extracts were found to be in the following decreasing order: Kufri Chisona-3 > Kufri Jyoti > Kufri Chandramukhi. In combination, peel extracts of Kufri Chipsona-3/Kufri Jyoti blend demonstrated synergistic antimicrobial and antioxidant interactions whereas other tested combinations showed additive antimicrobial and antioxidant effects. The peel extracts of Kufri Chipsona-3/Kufri Jyoti blend did not show any cytotoxic effect up to 1000 μg/ml concentration. Besides, a high positive correlation between total phenolic contents and antimicrobial activity of potato peel extracts was observed. The results provide evidence that hydro ethanol extract of potato peels of Kufri Chipsona-3/Kufri Jyoti blend may help in designing a more potent safe and effective novel natural antimicrobial and antioxidant agents in food and pharmaceutical industries.

中文翻译：

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Kufri Chandramukhi、Kufri Chipsona-3 和 Kufri Jyoti 马铃薯品种单独和组合果皮的水乙醇提取物的抗菌和抗氧化功效评价

马铃薯加工业产生大量富含酚类物质的马铃薯皮作为副产品，它们可能是食品工业中宝贵的抗菌剂和抗氧化剂的天然来源。本研究旨在单独评估三种常用马铃薯品种（Kufri Chandramukhi、Kufri Chipsona-3和Kufri Jyoti）果皮的水乙醇提取物的抗菌和抗氧化潜力，并结合细胞毒性评估。在它们各自的作用下，马铃薯皮提取物的抗菌和抗氧化潜力按以下递减顺序排列：Kufri Chisona -3 >  Kufri Jyoti  >  Kufri Chandramukhi. Kufri Chipsona-3 / Kufri Jyoti混合物的果皮提取物组合显示出协同抗菌和抗氧化相互作用，而其他测试组合显示出附加的抗菌和抗氧化作用。Kufri Chipsona -3/ Kufri Jyoti混合物的果皮提取物在高达 1000 μg/ml 的浓度下没有表现出任何细胞毒性作用。此外，观察到总酚含量与马铃薯皮提取物的抗菌活性之间存在高度正相关。结果证明，Kufri Chipsona -3/ Kufri Jyoti马铃薯皮的水乙醇提取物 混合可能有助于在食品和制药行业设计更有效、安全和有效的新型天然抗菌剂和抗氧化剂。