Seasonality Role on the Phenolics from Cultivated Baccharis dracunculifolia

Autor(es)

de Sousa, Joao Paulo B. ; Leite, Mateus F. ; Jorge, Renata F. ; Resende, Dimas O. ; da Silva Filho, Ademar A. ; Furtado, Niege A. J. C. ; Soares, Ademilson E. E. ; Spadaro, Augusto C. C. ; de Magalhaes, Pedro Melillo ; Bastos, Jairo K.

• Tipo de documento: Artigo Científico
• Fonte: Evidence-based Complementary and Alternative Medicine; v. 2011, p. 8-pg., 2011-01-01.

Resumo

Baccharis dracunculifolia is the source of Brazilian green propolis (BGP). Considering the broad spectrum of biological activities attributed to green proplis, B. dracunculifolia has a great potential for the development of new cosmetic and pharmaceutical products. In this work, the cultivation of 10 different populations of native B. dracunculifolia had been undertaken aiming to determine the role of seasonality on its phenolic compounds. For this purpose, fruits of this plant were collected from populations of 10 different regions, and 100 individuals of each population were cultivated in an experimental area of 1800 m(2). With respect to cultivation, the yields of dry plant, essential oil and crude extract were measured monthly resulting in mean values of 399 +/- 80 g, 0.6 +/- 0.1% and 20 +/- 4%, respectively. The HPLC analysis allowed detecting seven phenolic compounds: caffeic acid, ferulic acid, aromadendrin-4'-methyl ether (AME), isosakuranetin, artepillin C, baccharin and 2-dimethyl-6-carboxyethenyl-2H-1-benzopyran acid, which were the major ones throughout the 1-year monthly analysis. Caffeic acid was detected in all cultivated populations with mean of 4.0%. AME displayed the wide variation in relation to other compounds showing means values of 0.65 +/- 0.13% at last quarter. Isosakuranetin and artepillin C showed increasing concentrations with values between 0% and 1.4% and 0% and 1.09%, respectively. The obtained results allow suggesting that the best time for harvesting this plant, in order to obtain good qualitative and quantitative results for these phenolic compounds, is between December and April. (AU)

• Processo FAPESP: 04/13005-1 - Seleção de genótipo de Baccharis dracunculifolia dentre 10 acessos cultivados, por meio de análises mensais durante 12 meses, da fração volátil e substâncias fixas, visando à produção de óleo essencial e a determinação da melhor época de colheita
• Beneficiário: João Paulo Barreto de Sousa
• Modalidade de apoio: Bolsas no Brasil - Mestrado
• Processo FAPESP: 06/59893-0 - Desenvolvimento de metodologia analítica e estudo fitoquímico do extrato hidroalcoólico e da fração volátil das folhas e ramos de Copaifera langsdorffii (Leguminosae: Caesalpinioideae)
• Beneficiário: João Paulo Barreto de Sousa
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 01/14219-7 - Estudo fitoquímico, realização de ensaios biológicos, cultivo e influência da sazonalidade no metabolismo secundário de Braccharis dracunculifolia e na produção de própolis verde por Apis mellifera
• Beneficiário: Jairo Kenupp Bastos
• Modalidade de apoio: Auxílio à Pesquisa - Regular