Exploring the chemical and bioactive properties of: Hibiscus sabdariffa L. calyces from Guinea-Bissau (West Africa)

• Autor(a) principal: Jabeur, Inès
• Data de Publicação: 2018
• Outros Autores: Pereira, Eliana, Caleja, Cristina, Calhelha, Ricardo C., Soković, Marina, Catarino, Luís, Barros, Lillian, Ferreira, Isabel C.F.R.
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
• Texto Completo: http://hdl.handle.net/10198/19994

Different external factors influence the chemical characteristics of natural products, varying according to the geographic origin. The present study determined the nutritional and chemical composition of Hibiscus sabdariffa L. dried calyces (Guinea-Bissauan origin), as well as the phenolic composition, antioxidant, anti-inflammatory, cytotoxicity and antimicrobial activity of its infusion and hydroethanolic extracts. Among the chemical composition, glucose and quinic acid showed the major concentration for sugars and organic acids, respectively. Palmitic acid and α-tocopherol were the most abundant lipophilic compounds. The individual phenolic compounds were analysed through HPLC-DAD-ESI/MS. Thirteen compounds were identified in the hydroethanolic extract, while twelve were identified in the infusion, being 3- O-caffeoylquinic acid the major non-anthocyanin compound. Three anthocyanins were identified, being delphinidin-3-O-sambubioside the most abundant. Both extracts showed promising results in all the bioactive assays. This study exhibited beneficial properties of H. sabdariffa and also emphasized the potential applications of this plant in different industrial sectors.