Biological Activities and Valuable Bioactive Compounds from Portuguese Medicinal Plants

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Biological Activities and Valuable Bioactive Compounds from Portuguese Medicinal Plants

June 14, 2021 Agricultural Sciences 0

There are currently over 85,000 plant species that have been documented for medical use around the world. As a result, plant-derived natural products hold great promise for the discovery and development of new pharmaceuticals in a variety of human ailments. The lack of effective pharmaceutical formulations, as well as the resistance created by current antibiotic pathogens, as well as oxidative stress, necessitate the development of new therapeutic agents derived from plants. Several studies have shown that medicinal plants have antioxidant properties, which are largely due to their phytochemical profile. Endangered plants can provide a source of new bioactive compounds capable of preventing cancer, diabetes, hypertension, and Alzheimer’s disease by combating oxidative stress and its associated pathologies The goal of this study was to determine the levels of total phenolics, flavonoids, and caffeine in six medicinal plants that have traditionally been used in phytotherapy and are typically consumed as tea or infusions: Camellia sinensis, Melissa officinalis, Lippia citriodora, Cymbopogon citratus, Matricaria chamomilla. as well as Tilia cordata Significant differences in total phenolics and flavonoids content were discovered among the plants studied and depending on the nature of the extract. Caffeine concentrations were also very different, following the sequence M. officinalis T. cordata C. citratus M. chamomilla L. citriodora C. sinensis. Furthermore, the antioxidant activity of each plant varied according to C. citratus (90.9 percent ) > C. sinensis (87.8 percent ) > M. officinalis (50.7 percent ) > M. chamomilla (45.3 percent ) > T. cordata (32.2 percent ) > L. citriodora (32.2 percent ). (28.0 percent ).

Author (s) Details

Ana F. Vinha
FCS/UFP-Faculdade de Ciências da Saúde, Universidade Fernando Pessoa, Porto, Portugal and LAQV/REQUIMTE/Departamento de Ciências Químicas, Laboratório de Bromatologia, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal.

Carla Sousa
FCS/UFP-Faculdade de Ciências da Saúde, Universidade Fernando Pessoa, Porto, Portugal.

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