Now showing items 1-6 of 6
Pretreatment of sugarcane bagasse with microwaves irradiation and its effects on the structure and on enzymatic hydrolysis
(Applied Energy, 2014-06-01) [Artigo]
This paper refers to the new proposal of pre-treatment of sugarcane bagasse with microwave associated to glycerol, seeking greater release of fermentable sugars during enzymatic hydrolysis. The residue was subjected to ...
A Novel beta-Glucosidase from Sporidiobolus pararoseus: Characterization and Application in Winemaking
(Journal of Food Science, 2011-09-01) [Artigo]
For the first time, the production of an extracellular beta-glucosidase (Sp-beta-gl) by a Sporidiobolus pararoseus yeast strain is reported. The Sp-beta-gl activity was quantified, characterized, and assessed for its ...
Influence of ozonolysis time during sugarcane pretreatment: Effects on the fiber and enzymatic saccharification
(Bioresource Technology, 2017-01-01) [Artigo]
Modifications in sugarcane bagasse (SCB) from ozonolysis (O) NaOH (B) and ultrasound (U) (OBU) treatment for cellulosic ethanol production by enzymatic hydrolysis, were evaluated when increasing the exposure time of SCB ...
Effect of lanthanide ion doping on Mg−Al mixed oxides as active acid−base catalysts for fatty acid ethyl ester synthesis
(Renewable Energy, 2019-04-01) [Artigo]
MgAl-hydrotalcites (HT) containing 1–2% of the lanthanide ions La3+, Ce3+ and Lu3+ were evaluated as heterogeneous catalysts in the transesterification process for fatty acid ethyl ester (FAEE) synthesis in order to ...
Purification and Characterization of the alpha-Glucosidase Produced by Thermophilic Fungus Thermoascus aurantiacus CBMAI 756
(Journal of Microbiology, 2010-08-01) [Artigo]
An alpha-glucosidase enzyme produced by the fungus Thermoascus aurantiacus CBMAI 756 was purified by ultra filtration, ammonium sulphate precipitation, and chromatography using Q Sepharose, Sephacryl S-200, and Superose ...
Modulation of the activity and selectivity of the immobilized lipases by surfactants and solvents
(Biochemical Engineering Journal, 2015) [Artigo]
Most of lipases are in equilibrium between a majority inactive closed form and a minority active open form in aqueous media. Perhaps, a certain stabilization of these open forms of lipases could be achieved in the presence ...