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Hidrólise enzimática dos polissacarídeos do café
(Universidade Federal de São CarlosBRUFSCarPrograma de Pós-Graduação em Engenharia Química - PPGEQ, 2013-08-29)
Instant coffee is one of the main products generated by food industry worldwide, consisting of solubilized fraction from roasted and grounded coffee by heat treatment in two steps: thermal extraction at 125 0C, followed ...
Enhancement of anaerobic digestion of sludge from Kraft pulp mill wastewater treatment using thermal hydrolysis
(2022)
In the present work, the biodegradation improvement after thermal hydrolysis of the sludge generated in the aerobic wastewater treatment of a cellulose industry was evaluated. Response surfaces are presented for the different ...
Structural, thermal, and morphological characteristics of cassava amylodextrins
(2018-05-01)
BACKGROUND: Amylodextrins from cassava starch were obtained by acid hydrolysis, and their structural, thermal and morphological characteristics were evaluated and compared to those from potato and corn amylodextrins. ...
Thermal behaviour of corn starch granules under action of fungal alpha-amylase
(Springer, 2008-08-01)
Corn starch, partially hydrolyzed by fungal alpha-amylase was investigated by using thermal analysis, microscopy and X-ray diffraction. After enzymatic treatment lower degradation onset temperatures were observed. DSC ...
Thermal behaviour of corn starch granules under action of fungal alpha-amylase
(Springer, 2008-08-01)
Corn starch, partially hydrolyzed by fungal alpha-amylase was investigated by using thermal analysis, microscopy and X-ray diffraction. After enzymatic treatment lower degradation onset temperatures were observed. DSC ...
Hydrolysis rates of TMOS catalyzed by oxalic acid and stimulated by ultrasound
(Kluwer Academic Publ, 1999-06-01)
A simple calorimetric method was employed to study the kinetics of the hydrolysis of the solventless TMOS-water mixtures, under ultrasound stimulation, as a function of the concentration of oxalic acid. The reaction rates ...
Hydrolysis rates of TMOS catalyzed by oxalic acid and stimulated by ultrasound
(Kluwer Academic Publ, 1999-06-01)
A simple calorimetric method was employed to study the kinetics of the hydrolysis of the solventless TMOS-water mixtures, under ultrasound stimulation, as a function of the concentration of oxalic acid. The reaction rates ...
Production of xylo-oligosaccharides by immobilized-stabilized derivatives of endo-xylanase from Streptomyces halstedii
(2013-03-01)
An endoxylanase from Streptomyces halstedii was stabilized by multipoint covalent immobilization on glyoxyl-agarose supports. The immobilized enzyme derivatives preserved 65% of the catalytic activity corresponding to the ...
Production of xylo-oligosaccharides by immobilized-stabilized derivatives of endo-xylanase from Streptomyces halstedii
(2013-03-01)
An endoxylanase from Streptomyces halstedii was stabilized by multipoint covalent immobilization on glyoxyl-agarose supports. The immobilized enzyme derivatives preserved 65% of the catalytic activity corresponding to the ...
Structural and physicochemical characterization of RS prepared using hydrolysis and heat treatments of chickpea starch
(WILEY-BLACKWELL, 2011)
The aim of this study was to evaluate the production and the structural and physicochemical properties of RS obtained by molecular mass reduction (enzyme or acid) and hydrothermal treatment of chickpea starch. Native and ...