Data/hora: 17/05/2024 17:47:51

Provedor de dados: | 20
País: | Belgium

Título:

Efecto antioxidante y contenido polifenólico de Syringodium filiforme (Cymodoceaceae)

Antioxidant effect and polyphenol content of Syringodium filiforme (Cymodoceaceae)

Autores: | González García, K.L.; Valdés Iglesias, O.; Laguna, A.; Díaz Martínez, M.; González Lavaut, J.A.
Data: | 2011-04-20
Ano: | 2011
Resumo: | The marine  phanerogam Syringodium filiforme, known as “manatee grass”, is a common species that grows in coastal areas  associated to Thalassia testudinum. With the aim to describe some of its possible chemical characteristics, this  study was performed with a sample of 1.2kg, collected in March 2009, in Guanabo beach, Havana, Cuba. The  sample was dried (less than 12% humidity) and a total extract prepared; other three extracts were prepared with  the use of solvents of increasing polarity. The phytochemical screening and analytical determinations of each  fraction were undertaken Total polyphenol content was determined using pyrogallol as reference´s standard;  chlorophyll a and b and anthocyanin content were also quantified. Total extract and fractions antioxidant activity  were evaluated by using the free radical scavenging activity assay with 1,1-Diphenyl-2-Picrylhydrazyl reactive  (knowing as DPPH´s method). The phytochemical screening of the different extracts detected the presence of  high concentrations of flavonoids, phenols, terpenes, antocyaninns, reducing sugars and alkaloids. The total  extract and methanol fraction showed significant free radical scavenging properties, while the petroleum ether  fraction showed moderate activity, and the chloroform fraction and the aqueous soluble precipitate (residual  salt) obtained didn’t show antioxidant properties against free radicals. The results of this work confirmed the  potentialities of this species for biological purposes
Tipo: | Journal Contribution
Idioma: | Espanhol

Identificador:

Rev. Biol. Trop., 59(1). p. 465-472

0034-7744

http://hdl.handle.net/1834/3910