Phenolic profile and antioxidant activity from non-toxic Mexican Jatropha curcas L. shell methanolic extracts

作者：Patricia Perea Dominguez Xiomara; Gabriela Espinosa Alonso Laura; Hosseinian Farah; HadiNezhad Mehri; Valdez Morales Maribel; Medina Godoy Sergio

来源：Natural Product Research, 2017, 31(5): 610-614.

DOI：10.1080/14786419.2016.1209665

• In vitro antioxidant activity
• phenolic profile
• seed shells by-product

Jatropha curcas seed shells are the by-product obtained during oil extraction process. Recently, its chemical composition has gained attention since its potential applications. The aim of this study was to identify phenolic compounds profile from a non-toxic J. curcas shell from Mexico, besides, evaluate J. curcas shell methanolic extract (JcSME) antioxidant activity. Free, conjugate and bound phenolics were fractionated and quantified (606.7, 193.32 and 909.59 mu g/g shell, respectively) and 13 individual phenolic compounds were detected by HPLC. The radical-scavenging activity of JcSME was similar to Trolox and ascorbic acid by DPPH assay while by ABTS assay it was similar to BHT. Effective antioxidant capacity by ORAC was found (426.44 +/- 53.39 mu mol Trolox equivalents/g shell). The Mexican non-toxic J. curcas shell is rich in phenolic compounds with high antioxidant activity; hence, it could be considerate as a good source of natural antioxidants.
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• 出版日期2017