a Dipartimento di Scienze , Università della Basilicata , Potenza , Italy.
b HAPPRIC , H.N.B. Garhwal University , Srinagar Garhwal , India.
Nat Prod Res. 2019 Aug;33(16):2355-2358. doi: 10.1080/14786419.2018.1440219. Epub 2018 Feb 19.
The purpose of this study is the determination of chemical composition and antioxidant activity of essential oils (EOs) from (Falc.) Lipsch. Roots have been collected on December of the first plant year (IY) and in April, August and December of the third plant year (I, 6B, D7). A GC analysis was carried out for achieving this purpose. Subsequently, total polyphenol content (TPC) and antioxidant activity measured by DPPH, FRAP and BCB assays were evaluated. Three different statistical methods: Relative Antioxidant Capacity Index (RACI), Pearson's correlation coefficient (r) and PCA, were used to compare results obtained and underline EO relationships. From the results obtained, it was possible to observe how the collection period of the EO, in particular both the month and the year of collection, influences the metabolite profile.
本研究的目的是确定(Falc.)Lipsch.根的精油(EOs)的化学成分和抗氧化活性。根于第一年植物月(IY)的 12 月以及第三年植物月(I、6B、D7)的 4 月、8 月和 12 月进行收集。为实现这一目的进行了 GC 分析。随后,通过 DPPH、FRAP 和 BCB 测定法评估总多酚含量(TPC)和抗氧化活性。使用三种不同的统计方法:相对抗氧化能力指数(RACI)、皮尔逊相关系数(r)和 PCA,对获得的结果进行比较并强调 EO 之间的关系。从获得的结果中,可以观察到 EO 的采集时间,特别是采集的月份和年份,如何影响代谢物谱。