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Comparative time-course study of aminoacyl- and dipeptidyl-resin hydrolysis
(1997-12-01)
The classic hydrolysis procedure for quantification of resin-bound aminoacyl and peptidyl groups with 12 N HCl: propionic acid was recvaluated by studying the influence of the nature of the resin and the resin-bound group. ...
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 ...
Xylooligosaccharide production from sugarcane bagasse and leaf using Aspergillus versicolor endoxylanase and diluted acid
(2021-01-01)
Xylooligosaccharides (XOS) are xylose oligomers that have numerous health benefits and can be produced by the acid or enzymatic hydrolysis of xylan-rich materials. This study aimed to extract xylan from sugarcane bagasse ...
A kinetic modeling for the ultrasound-assisted and oxalic acid-catalyzed hydrolysis of 3-glycidoxypropyltrimethoxysilane
(2016-12-01)
Abstract: Instantaneous hydrolysis rates of the ultrasound-assisted and oxalic acid-catalyzed hydrolysis of 3-glycidoxypropyltrimethoxysilane (GPTMS) have been obtained at several temperatures by using a dynamic ...
Kinetics of autocatalytic acid hydrolysis of cellulose with crystalline and amorphous fractions
(SPRINGER, 2010)
The acid hydrolysis of cellulose with crystalline and amorphous fractions is analyzed on the basis of autocatalytic model with a positive feedback of acid production from the degraded biopolymer. In the condition of low ...
A study of the hydrolysis pathway in oxalic acid catalyzed reacting TMOS-water mixtures under ultrasound stimulation
(Kluwer Academic Publ, 2000-04-01)
The hydrolysis of TMOS in oxalic acid catalyzed reacting TMOS-water mixtures, under ultrasound stimulation, was studied by fitting a simplified dissolution and reaction modeling for samples, the hydrolysis rate of which ...
Optimization of acid hydrolysis from the hemicellulosic fraction of Eucalyptus grandis residue using response surface methodology
(Elsevier B.V., 2007-01-01)
Biotechnological conversion of biomass into fuels and chemicals requires hydrolysis of the polysaccharide fraction into monomeric sugars. Hydrolysis can be performed enzymatically and with dilute or concentrate mineral ...
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 ...
Post consumer pet depolymerization by acid hydrolysis
(Taylor & Francis Inc, 2007-02-01)
The reaction of post-consumer poly(ethylene terephthalate) with aqueous solutions of sulfuric acid 7.5M was investigated in terms of temperature, time and particle size. The reaction extent reached 80% in four days at 100 ...
Biotechnological valorization of mycelium-bound lipase of Penicillium purpurogenum in hydrolysis of high content lauric acid vegetable oils
(2022-05-01)
The study deals with the direct use of whole cells of a species of Penicillium as biocatalyst (mycelium-bound lipase) for the hydrolysis of vegetable oils under low-power ultrasonic irradiation. Whole cells of Penicillium ...