https://socictopen.socict.org/files/original/520c4a74c72292b4ebcc88867394825d.pdf 222624a957cb62336ca89d234f25bfa3 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Agricultura sostenible Description An account of the resource Dominio científico: Agricultura sostenible Text A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Efecto antioxidante y contenido polifenólico de Syringodium filiforme (Cymodoceaceae) Creator An entity primarily responsible for making the resource Kethia L González García, Olga Valdés Iglesias, Abilio Laguna, Maylín Díaz Martínez, José Antonio González Lavaut Description An account of the resource Antioxidant effect and polyphenol content of Syringodium filiforme (Cymodoceaceae). 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. Rev. Biol. Trop. 59 (1): 465-472. Epub 2011 March 01. Date A point or period of time associated with an event in the lifecycle of the resource 2011 Subject The topic of the resource Actividad Antioxidante, Syringodium filiforme, fitoquímica, polifenoles Source A related resource from which the described resource is derived Revista de Biología Tropical Publisher An entity responsible for making the resource available Vicerractoría Investigación Coverage The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant Biology (General) Relation A related resource <a href="http://www.scielo.sa.cr/scielo.php?script=sci_arttext&amp;pid=S0034-77442011000100040&amp;lng=en&amp;tlng=en" target="_blank" rel="noreferrer noopener">http://www.scielo.sa.cr/scielo.php?script=sci_arttext&amp;pid=S0034-77442011000100040&amp;lng=en&amp;tlng=en</a>