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Valorisation of table tomato crop by-products: Phenolic profiles and in vitro antioxidant and antimicrobial activities
Food and Bioproducts Processing ( IF 3.5 ) Pub Date : 2020-11-01 , DOI: 10.1016/j.fbp.2020.09.006
Mikel Añibarro-Ortega , José Pinela , Ana Ćirić , Valter Martins , Filomena Rocha , Marina D. Soković , Ana Maria Barata , Ana Maria Carvalho , Lillian Barros , Isabel C.F.R. Ferreira

Abstract Little attention has been paid to the phenolic composition and bioactive properties of primary tomato plant by-products (Solanum lycopersicum L.) as compared to fruits. In this study, axillary green shoots resulting from pruning and aerial biomass at the end of the cultivation cycle were characterized for their composition in chlorophylls and phenolic compounds, as well as for antioxidant and antimicrobial activities. The HPLC-DAD-ESI/MSn analysis allowed identifying phenolic acids and flavonoids, with prevalence of quercetin-3-O-rutinoside (rutin). The extracts had in vitro antioxidant and antihemolytic activity, especially those produced from pruning materials. Despite their low activity against the tested microfungi, some extracts had ability to inhibit and kill some bacteria more effectively than the antibiotic ampicillin. It was interesting to conclude that table tomato crop remains, currently with no commercial value, can be used to produce extracts with antioxidant and antibacterial activities for possible use in the agri-food sector as natural preservatives.

中文翻译:

食用番茄作物副产品的价值化:酚类特征和体外抗氧化和抗菌活性

摘要 与果实相比,主要番茄植物副产品 (Solanum lycopersicum L.) 的酚类成分和生物活性特性很少受到关注。在这项研究中,在栽培周期结束时修剪和空中生物量产生的腋生绿芽的叶绿素和酚类化合物的组成以及抗氧化和抗菌活性被表征。HPLC-DAD-ESI/MSn 分析允许鉴定酚酸和黄酮类化合物,槲皮素-3-O-芸香苷(芦丁)普遍存在。提取物具有体外抗氧化和抗溶血活性,尤其是那些由修剪材料产生的提取物。尽管它们对受试微真菌的活性较低,但一些提取物比抗生素氨苄青霉素更有效地抑制和杀死某些细菌。
更新日期:2020-11-01
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