title: Phenolic profile and antioxidant activity from non-toxic Mexican Jatropha curcas L. shell methanolic extracts.
abstract: 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 μg/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 μmol 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.
authors: a Laboratorio de Alimentos Funcionales, Departamento de Biotecnología Agrícola, Unidad Sinaloa, Centro Interdisciplinario de Investigación para el Desarrollo Integral Regional , Instituto Politécnico Nacional , Guasave , Mexico.
authors: Xiomara Patricia
authors: XP
authors: Perea-Domínguez
authors: a Laboratorio de Alimentos Funcionales, Departamento de Biotecnología Agrícola, Unidad Sinaloa, Centro Interdisciplinario de Investigación para el Desarrollo Integral Regional , Instituto Politécnico Nacional , Guasave , Mexico.
authors: Laura Gabriela
authors: LG
authors: Espinosa-Alonso
authors: b Food Science and Nutrition Division, Department of Chemistry , Carleton University , Ottawa , Canada.
authors: Farah
authors: F
authors: Hosseinian
authors: b Food Science and Nutrition Division, Department of Chemistry , Carleton University , Ottawa , Canada.
authors: Mehri
authors: M
authors: HadiNezhad
authors: c Área de Metabolómica Agrícola, Departamento de Biotecnología Agrícola , CONACyT - Centro Interdisciplinario de Investigación para el Desarrollo Integral Regional-Instituto Politecnico Nacional , Guasave , Mexico.
authors: Maribel
authors: M
authors: Valdez-Morales
authors: a Laboratorio de Alimentos Funcionales, Departamento de Biotecnología Agrícola, Unidad Sinaloa, Centro Interdisciplinario de Investigación para el Desarrollo Integral Regional , Instituto Politécnico Nacional , Guasave , Mexico.
authors: Sergio
authors: S
authors: Medina-Godoy
mesh_terms: D000975:Antioxidants / Q000494:pharmacology*; D031286:Jatropha / Q000737:chemistry*; D010636:Phenols / Q000032:analysis*; D010936:Plant Extracts / Q000032:analysis* / Q000494:pharmacology
chemical_list: D000975:Antioxidants; D010636:Phenols; D010936:Plant Extracts
keywords: % ARA, antiradical activity percentage; BHT, butylated hydroxytoluene; BP, bound phenolics; IC50, concentration required to cause a 50% of radical inhibition; In vitro antioxidant activity; JcSME, Jatropha curcas shell methanolic extract; SCP, soluble conjugated phenolics; SFP, soluble free phenolics; TE, Trolox equivalents; phenolic profile; seed shells by-product