Phytochemicals and bioactive analysis of different sweet tea (Lithocarpus litseifolius [Hance] Chun) varieties,Journal of Food Biochemistry

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Phytochemicals and bioactive analysis of different sweet tea (Lithocarpus litseifolius [Hance] Chun) varieties
Journal of Food Biochemistry ( IF 3.5 ) Pub Date : 2020-03-16 , DOI: 10.1111/jfbc.13183
Mengke Wang ₁ , Xing Liu ₁ , Zejie Zhang ₁ , Jiawen Yu ₁ , Jiajia Liu ₁ , Yiqiang Wu ₂

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This paper aims to investigate the constituent phytochemicals and biological activities of six Lithocarpus litseifolius (Hance) Chun (L. litseifolius) cultivars. Processed by UPLC‐MS/MS and untargeted metabolomics analysis software (MS‐DIAL and MS‐FINDER), components of different L. litseifolius cultivars were analyzed qualitatively and quantitatively. By conducting a comprehensive analysis of spectra, MS/MS fragmentation, and retention time, 40 compounds (including 6 phenolic glycosides and 34 flavonoids) were identified rapidly and accurately. Moreover, the total phenolic content (TPC), total flavonoid content (TFC), antioxidant, antimicrobial effects, and pheochromocytoma (PC12) cell viability of different L. litseifolius varieties were evaluated. Purple small leaf (PSL) was found to be the most superior variety with the highest antioxidant activities (8.27, 10.09, and 10.80 mg TE/g for DPPH, ABTS, and FRAP assays, respectively), broad‐spectrum antimicrobial activity, and lowest cell cytotoxicity. The results showed that these bioactivities were closely related to phytochemicals among the six cultivars.

中文翻译：

不同品种甜茶（Lithocarpus litseifolius [Hance] Chun）的植物化学成分和生物活性分析

本文旨在研究6个石楠（Hance）春 （L. litseifolius）品种的组成植物化学活性。通过UPLC-MS / MS和非靶向代谢组学分析软件（MS-DIAL和MS-FINDER）处理，定性和定量分析了不同的L. litseifolius品种的成分。通过对光谱，MS / MS碎片和保留时间进行全面分析，可以快速，准确地鉴定出40种化合物（包括6种酚类糖苷和34种类黄酮）。此外，不同的L. litseifolius 的总酚含量（TPC），总类黄酮含量（TFC），抗氧化剂，抗菌作用和嗜铬细胞瘤（PC12）细胞活力对品种进行了评估。紫色小叶（PSL）被发现是最优良的品种，具有最高的抗氧化活性（对于DPPH，ABTS和FRAP分析，分别为8.27、10.09和10.80 mg TE / g），广谱抗菌活性最低。细胞的细胞毒性。结果表明，六个品种中这些生物活性与植物化学物质密切相关。

更新日期：2020-03-16

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