Recognition and determination of compounds of interest of nonconventional food plants from family farming in Canguçu, RS, Brazil
DOI:
https://doi.org/10.35977/0104-1096.cct2021.v38.26922Keywords:
knowledge, food security, sovereignty, appraisalAbstract
The objective of this study was to recognize the ethnobotanical knowledge on nonconventional food plants (NFPs) of traditional communities, as well as to characterize their bioactive compounds, to guarantee both food security and safety, through the characterization of their bioactive compounds. The analyses were performed to determine phenolic compounds, carotenoids, and antioxidant activity from different NFP species found in the family production units (UPF Unidades de Produção Familiar) of families that are members of the Associação Escola Família Agrícola da Região Sul (Aefasul). The survey results indicated that 62% of the interviewed families had already heard about NFPs and, among the indications, 355 were identified as eventually being consumed by the interviewed families, among which Ananas bracteatus, Butia odorata, Eugenia uniflora, Psidium cattleianum and Syagrus romanzoffiana stood out. Regarding the bioactive compounds found, the content of carotenoids (119,840 μg β-carotene g-1) in the leaves of Tropaeolum majus, and the levels of gallic acid-equivalent phenolic compounds (186.02 g EAG100 g-1) in its flowers stand out. The bioactive compounds found in the NFPs lead us to infer that they have great nutritional and economic potential. However, more research is necessary, as well as different methods of analysis, to confirm the results to provide greater scientific evidence on these properties, in order to guarantee food safety and food security.