7 documents found, page 1 of 1
Evaluation of antitumoral and antioxidant activities of the hydroalcoholic extr...
Santos Filho, José Rivaldo dos; Santos, Everton da Silva; Mandim, Filipa; Molina, Adriana K.; Barros, Lillian; Gonçalves, Regina Aparecida CorreiaThe fruits of Sapindus saponaria L., popularly known as 'saboeiro', have been used in medicine. This study evaluated the antioxidant and antitumor activities of the hydroethanolic extract (HAE) and fractions obtained from the fruit pericarp of S. saponaria. The HAE was obtained from the S. saponaria fruit pericarp by maceration; this was followed by fractionation using reversed-phase solid-phase extraction, res...
An analytical method for the quantitative determination of iron ion chelating c...
Santos, Éverton da Silva; Teixeira, Leticia de Melo; Castro, Juliana Cristina; Mardigan, Laura Paulino; Santos, José Rivaldo dosIron is a fundamental microelement for human life; however, deficiencies or excesses of these metal ions can cause severe complications and mortality. Chelators are compounds that bind and inhibit iron. Ultraviolet-visible (UV-vis) spectrophotometric methods are key analytical tools in the identification of chemical entities, with the benefits of having good precision and accuracy, and the equipment being easil...
Effect of sucrose on the fatty acid metabolism of adventitious root cultures in...
Follador, Bruna Gabrieli; Santos, Éverton da Silva; Gonçalves, José Eduardo; Gonçalves, Regina Aparecida Correia; Oliveira, Arildo José Braz deIn this study, the effect of sucrose on the neutral lipid profile of adventitious root cultures of Stevia rebaudiana was evaluated. The cultures were obtained employing a roller bottle system. In this system, Schott-type flasks were used, which contained Murashige and Skoog liquid medium at 33.3% strength (MS/3) supplemented with 30, 60, and 80 g L-1 of sucrose, respectively, and 10.7 mM 1-naphthaleneacetic aci...
Limonoid detection and profile in callus culture of sweet orange
Pessoa, Luiz Gustavo Antunes; Pessoa, Leonardo Antunes; Santos, Éverton da Silva; Pilau, Eduardo Jorge; Gonçalves, José EduardoPlant tissue culture has emerged as an important tool to produce bioactive compounds from various plant species, including the sustainable production of limonoids that are receiving considerable attention due to the benefits associated with human health such as anticancer activities. The purpose of the present study was to evaluate the capacity of limonoids aglycone production from callus culture from sweet ora...
Callus culture of Aspidosperma ramiflorum Muell. Arg.: growth and alkaloid prod...
Oliveira, Arildo José Braz de; Koike, Luzia; Reis, Francisco de Assis Machado; Shepherd, Simone Liliane KirszenzaftCallus culture of Aspidosperma ramiflorum was established in Murashige and Skoog medium. Callus were supplemented with 1 mg.L-1 2,4-dichlorophenoxyacetic acid, 1.5 mg.L-1 benzylaminopurine, 30 g L-1 sucrose and 10 g L-1 agar. Cultures accumulated the same major alkaloids, ramiflorine A and ramiflorine B, present in the stem bark of the parent plant. The alkaloid contents of 10-methoxy-geissoschizol, ramiflorine...
Effect of different culture medium components on production of alkaloid in call...
Rocha, Luciano Kleber da; Oliveira, Arildo José Braz de; Mangolin, Claudete Aparecida; Machado, Maria de Fátima Pires da SilvaThe production of alkaloids from Cereus peruvianus callus cultured in medium supplemented with different tyrosine concentrations, different 2,4-D/kinetin levels, and with NaCl was investigated using long-term callus culture. α- and β-Esterase isozyme patterns were also analyzed to investigate the differential gene expression in callus subcultured with the different tyrosine concentrations. The greate...
Concentração de açúcares no néctar e visitantes florais do siratro (Macroptiliu...
Toledo, Vagner de Alencar Arnaut de; Oliveira, Arildo José Braz de; Ruvolo-Takasusuki, Maria Claudia Colla; Mitsui, Marina Hitumi; Vieira, Renata EuniceSiratro (Macroptilium atropurpureum Urb.) é uma planta forrageira com alto valor nutricional e excelente palatabilidade, sua fenologia é pouco conhecida. Objetivando melhorar o conhecimento e compreensão dos polinizadores do siratro e sua biologia floral, o conteúdo de açúcares totais no néctar de suas flores e a identificação desses açúcares foram determinados por espectrofotometria e cromatografia, respectiva...