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| MARINHO,ANDREY M.R.; MARINHO,PATRÍCIA S.B.; SANTOS,LOURIVALDO S.; RODRIGUES FILHO,EDSON; FERREIRA,IZABEL C.P.. |
| In this work we are reporting the isolation by classical methods of chromatography of six polyketides from Penicillium herquei. The compounds citreorosein ( 1) , emodin ( 2) , janthinone ( 3) , citrinin ( 4) , citrinin H1 ( 5) and dicitrinol ( 6) were identified by spectral methods of 1D and 2D NMR and MS. Compounds 1, 2 and 3 were tested against promastigotes forms of Leishmania brasiliensis and 1 and 2 were also assayed against Escherichia coli, Pseudomonas aeruginosa and Bacillus subtilis and showed good activity. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Polyketides; Biological assay; P. herquei. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652013000300909 |
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| Zimmermann,Alice Mesquita; Rivero,Alessandra Coelho; Bezerra,Aline Sobreira; Ruviaro,Amanda Roggia; Novack,Mariana Moura Ercolani; Nörnberg,José Laerte. |
| Antioxidants have the ability to neutralize free radicals produced in the body during lipid oxidation. The objective in this article was to study the effect of the barley extract on lipid oxidation in rats subjected to a high-fat diet. The experiment lasted 67 days. The animals were separated into three experimental groups: standard (P), high-fat diet group (L), and group with high-fat diet supplemented with barley extract (C). The feed intake of L and C groups was the lowest (p < 0.05). The treatments did not influence weight gain, organ weight, and the blood parameters measured. However, the levels of malondialdehyde present in the liver tissue were higher in the L group and lower in the P and C groups. Therefore, the results indicated an increased... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Oxidative stress; Biological assay; Lipid peroxidation. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612013000100024 |
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| Stallbaun, Patricia Hellenn; Baraúna, Edy Eime Pereira; Monteiro, Thiago Campos; Vieira, Renato Silva; Sales, Nilza De Lima Pereira; Oliveira, Leandro Silva. |
| O trabalho teve como objetivo analisar a resistência natural da madeira de Tachigali vulgaris L. G. Silva & H. C. Lima ao fungo Postia placenta (Fr.) M. J. Lars. & Lomb., causador da podridão parda. Foram coletadas nove árvores e, da tora basal, confeccionadas seis amostras de cada indivíduo, com dimensões de 25 mm x 25 mm x 9 mm (radial, tangencial e axial) no sentido base ao topo. As amostras foram mantidas em contato com o fungo durante 14 semanas, em sala climatizada, sendo posteriormente secas e a perda de massa avaliada. A madeira de T. vulgaris se mostrou altamente resistente a P. placenta, pois o maior valor de perda de massa foi de 12,13%. Foi observada correlação indireta de 82,9% entre a densidade básica e a durabilidade da madeira,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Engenharia Florestal; Tecnologia da madeira Podridão da madeira; Preservação da madeira; Ensaio biológico Wood decay; Wood preservation; Biological assay. |
| Ano: 2016 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1231 |
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