Voltar
Artigo Acesso aberto Produção Nacional Revisado por pares
BIBTEX RIS

Phytochemical screening, antioxidant, and antimicrobial activities of the crude leaves′ extract from Ipomoea batatas (L.) Lam

2011; SAGE Publishing; Volume: 7; Issue: 26 Linguagem: Inglês

10.4103/0973-1296.80682

ISSN

0976-4062

Autores

Francisco Carlos Groppo, MárciaThaís Pochapski, ElianaCristina Fosquiera, L. A. ESMERINO, ElizabeteBrasil dos Santos, PauloVitor Farago, FábioAndré Santos,

Tópico(s)

Natural Antidiabetic Agents Studies

Resumo

Pharmacognosy Magazine,2011,7,26,165-170.DOI:10.4103/0973-1296.80682Published:May 2011Type:Short CommunicationAuthors:Márcia Thaís Pochapski, Eliana Cristina Fosquiera, Luís Antônio Esmerino, Elizabete Brasil dos Santos, Paulo Vitor Farago, Fábio André Santos, and Groppo F. C Author(s) affiliations:Márcia Thaís Pochapski1, Eliana Cristina Fosquiera2, Luís Antônio Esmerino3, Elizabete Brasil dos Santos2, Paulo Vitor Farago3, Fábio André Santos2, Francisco Carlos Groppo1 1Department of Pharmacology, Anesthesiology and Therapeutics, Piracicaba Dental School, University of Campinas, Piracicaba, SP, Brazil 2Department of Dentistry, Ponta Grossa State University, Ponta Grossa, Paraná, Brazil 3Department of Phamarcy, Ponta Grossa State University, Ponta Grossa, Paraná, Brazil Abstract:Background: Ipomoea batatas (L.) Lam., popularly known as sweet potato (SP), has played an important role as an energy and a phytochemical source in human nutrition and animal feeding. Ethnopharmacological data show that SP leaves have been effectively used in herbal medicine to treat inflammatory and/or infectious oral diseases in Brazil. The aim of this research was to evaluate the phytochemical, antioxidant, and antimicrobial activities of the crude leaves' extract of SP leaves. Materials and Methods: The screening was performed for triterpenes/steroids, alkaloids, anthraquinones, coumarins, flavonoids, saponins, tannins, and phenolic acids. The color intensity or the precipitate formation was used as analytical responses to these tests. The total antioxidant capacity was evaluated by the phosphomolybdenum complex method. Antimicrobial activity was made by agar disk and agar well diffusion tests. Results: The phytochemical screening showed positive results for triterpenes/steroids, alkaloids, anthraquinones, coumarins, flavonoids, saponins, tannins, and phenolic acids. Total contents of 345.65, 328.44, and 662.02 mg were respectively obtained for alkaloids, anthraquinones, and phenolic compounds in 100 g of the dry sample. The total antioxidant capacity was 42.94% as compared to ascorbic acid. For antimicrobial studies, no concentration of the SP freeze dried extract was able to inhibit the growth of Streptococcus mutans, S. mitis, Staphylococcus aureus, and Candida albicans in both agar disk and agar well diffusion tests. Conclusions: SP leaves demonstrated the presence of secondary metabolites with potential biological activities. No antimicrobial activity was observed. Keywords:Antimicrobial activity, antioxidant activity, convolvulaceae, phenolic content, sweet potatoView:PDF (820.1 KB) Full Text

Referência(s)