Factorial design and response surface techniques were used to optimize the culture medium for the production of inulinase by Kluyveromyces marxianus. Sucrose was used as the carbon source instead of inulin. Initially, a ...

Galacto-oligosaccharides are non-digestible carbohydrates and are recognized as important prebiotics for than stimulation of the proliferation of lactic acid bacteria and bifidobacteria in the human intestine. GOS can be ...

The adsorption of an extracellular inulinase directly onto an ion exchange resin from a clarified crude broth was investigated in this work. The enzyme inulinase was obtained from Kluyveromyces marxianus ATCC 16045 by ...

A three-year (2006–2008) survey on commercial wheat grain was conducted aimed at quantifying the intensity of Fusarium head blight epidemics related to kernel quality and levels of deoxynivalenol (DON) and nivalenol (NIV). ...

Micotoxinas são metabólitos secundários produzidos por fungos filamentosos em diferentes etapas da cadeia produtiva de alimentos. Entre micotoxinas, ocratoxina A (OTA) é de grande importância, e apresenta efeitos ...

Visando melhor aproveitamento do soro de queijo estudou-se a influência da proporção de soro e da concentração de hidrocoloide nos teores de lactose, ácido lático e tempo de fermentação de bebidas lácteas. Utilizou-se ...

This study aimed to evaluate B-galactosidase immobilization. For this purpose, the ionic strength of the buffer, reaction time, amount of the immobilization support, and pH were evaluated by a central composite design. ...

A adição de aliltrimetilsilano, promovida por TiCl4, a íons N-aciliminios cíclicos de 5- e 6- membros derivados do ácido (S)-(+)-mandélico, (1R,2S)-trans-2-fenil-1-cicloexanol e (1R,2S,5R)- 8-fenilmentol ocorreu com baixas ...

Uma série de novas pirazolinas N-acil trialometiladas derivadas de ésteres metílicos de ácidos graxos foi sintetizada por reação de ciclocondensação entre hidrazidas graxas e 4-alcóxi-1,1,1‑trialometil-3-alquen-2-onas. ...

This work reports, for the first time, the determination of major and trace elements (Al, As, Ba, Ca, Cd, Co, Cr, Cu, Fe, K, La, Mg, Mn, Mo, Na, Ni, P, Pb, S, Se, Sn, Sr, Ti, Tl, U, V, and Zn) in the fractions of the ...

The application of natural antifungal substances is motivated by the need for alternatives to existing methods that are not always applicable, efficient, or that do not pose risk to consumers or the environment. Furthermore, ...

In this work, natural cashew apple juice was used as cultivation medium as an alternative to substitute brain heart infusion medium. The effect of aeration and juice supplementation with yeast extract on the production of ...

This work reports the synthesis of new fatty N-acylamino acids and N-acylamino esters from the C16:0, C18:0, C18:1, and C18:1(OH) fatty acid families and demonstrates the activity of these compounds as organogel agents. ...

As células de combustível microbiológicas (CCM) surgem com a intenção de associar proteção ambiental, geração de energia e valoração de resíduos. A geração biológica de eletricidade busca complementar a futura matriz ...

O objetivo deste trabalho foi avaliar a composição do meio de cultura para a produção da enzima B-galactosidase de Kluyveromyces marxianus CCT 7082 utilizando a técnica de delineamento experimental. A produção da enzima ...

Amyloglucosidase enzyme was produced by Aspergillus niger NRRL 3122 from solid-state fermentation, using deffated rice bran as substrate. The effects of process parameters (pH, temperature) in the equilibrium partition ...

The optimization of a traditional technique of cellular disruption by abrasion was carried out and a process using ultrasonic waves associated with glass pearls to extract β-galactosidase from Kluyveromyces marxianus ...

O Rio Grande do Sul é o primeiro produtor nacional de arroz. A industrialização dessa importante matéria-prima gera grande quantidade de grãos quebrados como subproduto do beneficiamento. Esse subproduto tem sido alvo de ...

The objective of this study was to elaborate liposomes, through the lipid film hydration methodology, to nanoen-capsulate phenolic compounds of Spirulina LEB-18 and Chlorella pyrenoidosa microalgae, and evaluate their ...

The asymmetric unit of the title compound, C16H16N2O4, contains one half-molecule, the whole molecule being generated by an inversion center located at the mid-point of the C-C bond of the central ethane group. An ...