Results: 3070

Chemical composition and insecticidal activity of Cymbopogon citratus essential oil from Cuba and Brazil against housefly

Essential oil of Cymbopogon citratus collected from Brazil and Cuba was tested to a chemical characterization and then was tested on the post-embryonic development of Musca domestica. The chemical composition analysis by GC-MS of the oils from Brazil/Cuba allowed the identification of 13 and 12 major con...

Inhibitory effect of lotus seedpod oligomeric procyanidins on advanced glycation end product formation in a lactose-lysine model system

Electron. j. biotechnol; 18 (2), 2015
Background Industrial food processing induces protein glycation modifications and toxic advanced glycation end products (AGEs) which affect human health. Therefore, it is of interest to monitor AGEs in food processing. The present study was carried out to investigate the influence of lotus seedpod oligom...

Extraction optimization of total triterpenoids from Jatropha curcas leaves using response surface methodology and evaluations of their antimicrobial and antioxidant capacities

Electron. j. biotechnol; 18 (2), 2015
Background Triterpenoids are multifunctional secondary metabolites in plants. But little information is available concerning the actual yield, optimal extraction method and pharmacologic activity with regard to triterpenoids from Jatropha curcas leaves (TJL). Hence, response surface methodology (RSM) was...

Atividade de nanoformulações de Melaleuca alternifolia e terpinen-4-ol em isolados de Rhodococcus equi

Rhodococcus equi é o agente etiológico da rodococose equina, importante doença respiratória de potros. Especialmente na última década, a emergência de cepas resistentes aos antimicrobianos empregados no tratamento da rodococose tem sido relatada. Nesse sentido, há a necessidade de estudos envolve...

Avaliação de dieta formulada com subprodutos de mandioca na produção de sêmen de coelhos

Avaliaram-se as características quantitativas e qualitativas do sêmen de coelhos alimentados com uma ração referência e outra ração formulada com 79,83% de subprodutos de mandioca. Utilizaram-se 20 reprodutores da raça Nova Zelândia Branco, com idade média inicial de sete meses, alojados indivi...

Chemical composition and fermentation characteristics of sugar cane silage enriched with detoxified castor bean meal

This experiment was designed to evaluate the effects of the inclusion of detoxified castor bean meal (CM) content on the chemical-bromatological composition, as well as the fermentation characteristics and dry matter losses of sugarcane silage. The treatments consisted of four levels (0, 7, 14 and 21% na...

Atividade ovicida e larvicida do extrato hidroalcoólico de Artemisia annua sobre parasitas gastrintestinais de bovinos

Os parasitas gastrintestinais causam enorme prejuízo econômico na bovinocultura, tanto nacional como mundial, ocasionado principalmente por Bunostumom sp., Cooperia sp. e Trichostrongylus sp. O objetivo deste trabalho foi determinar a eficácia in vitro do extrato hidroalcoólico de Artemisia annua (H....

Polymorphism of three milk protein genes in Mexican Jersey cattle

Electron. j. biotechnol; 18 (1), 2015
The objective was to estimate the allelic and genotypic frequencies, genetic diversity and polymorphic information content for the β-casein, κ-casein and β-lactoglobulin genes. Blood and frozen semen samples were collected from 453 Jersey individuals registered by the Mexican Jersey Cattle...

Potential of giant reed (Arundo donax L. ) for second generation ethanol production

Electron. j. biotechnol; 18 (1), 2015
Background The production of second generation ethanol from lignocellulosic biomasses that have not had their potential fully explored as feedstock is of great importance. Arundo donax is one these biomasses. It is a promising grassy plant to be used as a renewable resource for the production of fuels an...

A comparative proteomic study of white and black glutinous rice leaves

Electron. j. biotechnol; 18 (1), 2015
Background Black glutinous rice contains remarkable levels of anthocyanins, which possess anti-oxidative properties and thus have health benefits. The accumulation of anthocyanins in grains of thirty black glutinous rice varieties was measured, and the results revealed that the accumulated anthocyanin co...