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Antioxidants 2012, 1, 33-43; doi:10.3390/antiox1010033 antioxidants ISSN 2076-3921 www.mdpi.com/journal/antioxidants Article Total Phenolic Content and Antioxidant Activity of Some Malvaceae Family Species Adriana Maria Fernandes de Oliveira 1, *, Lilian Sousa Pinheiro 2 , Charlane Kelly Souto Pereira 2 , Wemerson Neves Matias 2 , Roosevelt Albuquerque Gomes 2 , Otemberg Souza Chaves 2 , Maria de Fátima Vanderlei de Souza 2 , Reinaldo Nóbrega de Almeida 2,3 and Temilce Simões de Assis 3 1 Universidade F ederal de Campina Grande, Unid ade Acadêmica de Ciências da Vida, CEP 58900-000, Cajazeiras, PB, Brazil 2 Programa de P ós-Graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde, Universidade Federal da Paraíba, CEP 58051-970, João Pessoa-PB, Brazil; E-Mails: [email protected] (L.S.P.); [email protected] (C.K.S.P.); [email protected]. br (W.N.M.); [email protected] (R.A.G.); [email protected] (O.S.C.); [email protected] (M.F.V.S.); [email protected] (R.N.A.) 3 Departamento d e Fisiologia e Patolo gia, Centro de Ciências da Saú de, Universidade Federal da Paraíba, CEP 58059-900, João Pessoa-PB, Brazil; E-Mail: [email protected] * Author to whom co rrespondence should be addressed; E-Mail: [email protected]; Tel.: +83-3531-4300; Fax: +83-3531-3046. Received: 16 August 2012; in revised form: 10 September 2012 / Accepted: 24 S eptember 2012 / Published: 26 October 201 2 Abstract: The antioxidant activity of four species of the Malvaceae family (Sidastrum micranthum (A. St.-Hil.) Fryxell, Wissadula periplocifolia (L.) C. Presl, Sida rhombifolia (L.) E. H. L and Herissantia crispa L. (Brizicky)) were studied using the total phenolic content, DPPH radical scavenging activity and Trolox equivalent antioxidant capacity (TEAC) assays. The antioxidant activity of the crude extract, phases and two isolated flavonoids, kaempferol 3,7-di-O- α-L-rhamnopyranoside (lespedin) and kaempferol 3-O-β-D-(6'' -E-p-coumaroil) glucopyranoside (tiliroside) was determined. The results showed that there is a strong correlation between total polyphenol contents and antioxidant activity of the crude extract of Sidastrum micranthum and Wissadula periplocifolia; however, this was not observed between Sida rhombifolia and Herissantia crispa. OPEN ACCESS
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