Assessment of the chemical profile, polyphenol content and antioxidant activity in extracts of Psidium Guajava L. fruits

Autor: Chiari, Bruna Galdorfini, Severi, Juliana Aparecida, Pauli-Credendio, Priscila Abackerli, Sylos, Célia Maria, Wagner Vilegas, Correa, Marcos Antonio, Isaac, Vera Lucia Borges
Přispěvatelé: Universidade Estadual Paulista (Unesp)
Předmět:
Zdroj: Universidade Estadual Paulista "Júlio de Mesquita Filho"
Scopus
Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
instacron:UNESP
ISSN: 8487-0729
Popis: Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-27T11:27:25Z No. of bitstreams: 0Bitstream added on 2014-05-27T14:42:39Z : No. of bitstreams: 1 2-s2.0-84870729440.pdf: 305810 bytes, checksum: a8003dc1d3d90bb475f14c0c678ee779 (MD5) Made available in DSpace on 2014-05-27T11:27:25Z (GMT). No. of bitstreams: 0 Previous issue date: 2012-12-13 Fruits and vegetables that are rich in polyphenolic compounds, especially flavonoids, may be used to benefit human health by reducing the incidence of cancers and cardiovascular diseases. Previous studies have demonstrated the antioxidant activity of guava, a fruit widely available in Brazil, possibly due to the presence of these polyphenolic compounds. The aim of this study was to analyze the total phenolic and flavonoid contents of various guava extracts, assay their antioxidant activity and record the chromatographic profiles of these extracts, to determine a simple and low way of extracting these compounds efficiently from guava. The results confirmed the presence of polyphenols in guava, including flavonoids, and its antioxidant activity. Furthermore, it was demonstrated that the 70% ethanol (by volume) was the most effective solvent to extract these compounds from the fruit, among those tested. Faculdade de Ciências Farmacêuticas Universidade Estadual Paulista (UNESP) Departamento de Fármacos e Medicamentos, c.p. 355; zip code: 14801-902, Araraquara Instituto de Química Universidade Estadual Paulista (UNESP), c.p. 355; zip code: 14800-900, Araraquara Faculdade de Ciências Farmacêuticas Universidade Estadual Paulista (UNESP) Departamento de Fármacos e Medicamentos, c.p. 355; zip code: 14801-902, Araraquara Instituto de Química Universidade Estadual Paulista (UNESP), c.p. 355; zip code: 14800-900, Araraquara
Databáze: OpenAIRE
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