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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 94 for “"enzymatic hydrolysis"”.
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Pretreatment and enzymatic hydrolysis of lignocellulosic materials
… on lignocellulosic materials; and (b) enhancing enzymatic hydrolysis in a continuous tubular membrane reactor (TMR) process.;The alkaline oxidation pretreatment method was found to be more efficient than ammonia steeping pretreatment in lignin removal and digestible cellulose enrichment for the …
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Enzymatic hydrolysis of cellulose : a kinetic study
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1972.
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Synthesis of Resveratrol Ester Derivatives Using Selective Enzymatic Hydrolysis.
… resveratrol using lipase catalyzed hydrolysis. Therefore, the tri-acylated resveratrols 3, 5, 4'-tri-O-isobutyroyl resveratrol and 3, 5,4'-tri-O-hexanoyl resveratrol were first synthesized.</p><p>3,5,4'-tri-O-isobutyroyl resveratrol and 3,5,4'-tri-O-hexanoyl resveratrol were then …
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Enzymatic hydrolysis of liquefied corn starch in a membrane bioreactor
The overall objective of this project was to develop and optimize a membrane reactor for the continuous saccharification of liquefied corn starch by glucoamylase. The effects of enzyme concentration, substrate concentration and residence time on starch conversion were studied. Increasing the …
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Enhancing the functionality of delactosed whey by enzymatic hydrolysis using Response Surface Methodology Approach (RSM)
… amplifying its protein functionality. Moderate enzymatic hydrolysis can significantly enhance protein functionality. It is, therefore, hypothesized that subjecting DLW to enzymatic proteolysis will lead to enhanced functionality. To amplify and improve the functionality of DLW via enzymatic …
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Enzymatic hydrolysis and fermentation of soy flour to produce ethanol and soy protein concentrate with increased polyphenols
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2023-12-01
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Lignocellulose Saccharification via Cellulose Solvent Based Fractionation Followed by Enzymatic Hydrolysis: the Last Obstacle to Integrated Biorefineries
… be a key substrate characteristic that impacts enzymatic cellulose hydrolysis, studies in this thesis showed CrI values varied greatly depending on measurement techniques, calculation approaches, and sample preparation conditions. A correlation between CAC values and glucan digestibility of …
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Effects of the Non-ionic Surfactant Tween 80 on the Enzymatic Hydrolysis of Model Cellulose and Lignocellulosic Substrates
… of the non-ionic surfactant Tween 80 on the enzymatic hydrolysis of cellulose and LC substrates. Model cellulose substrates were prepared from cellulose nanocrystals (CNCs) obtained by sulfuric acid hydrolysis of wood pulp. Two methods were developed for the removal of the sulfate groups on …
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Understanding the Impacts of Ammonia Fiber Expansion (AFEX™) Pretreatment and Densification on Densified Products Quality and the Bioproducts Yield Through Enzymatic Hydrolysis and Fast Pyrolysis
… makes it even more challenging during the enzymatic hydrolysis. The carbohydrate components, cellulose and hemicellulose are not readily accessible by the enzymes during the hydrolysis process due to the presence of lignin. Pretreatment is the process to convert the native recalcitrant …
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Understanding the Relative Importance of the Effects of Soluble and Insoluble Inhibitors on the Enzyme Digestibility of Steam Pretreated Radiata Pine
… sugars to ethanol. High sugar yields during enzymatic hydrolysis requires an effective pretreatment to disrupt and/or remove some of the lignin and hemicelluloses, so that the cellulose is more accessible to enzymes. Softwoods, such as Pinus radiata, are amongst the most recalcitrant …
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Identification and Elucidation of Factors Contributing to High Quality Beef Flavors
… of beef extract was developed based on enzymatic hydrolysis and incorporation of the components of lean beef into a beef flavor. This product had a good flavor profile and was superior to synthetic beef flavorings. It lacked an intense beef flavor.
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On the Recalcitrant Nature of Sphagnum's Cell Wall
… may influence Sphagnum’s susceptibility to enzymatic breakdown. Two dimensional 13C solid state NMR was initially employed to characterise the polymer composition, mobility, and spatial organisation of the intact isotopically labelled Sphagnum fuscum cell wall. Comparing S. fuscum with the …
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Assessment of pre-treatment technologies for bio-ethanol production using multi-objective optimisation
… often solubilised in a basic solution prior to hydrolysis. A variety of methods exist for pre-treating bagasse which require different raw materials and have different operating conditions, and thus have different costs and environmental impacts associated with them. In order to determine an …
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A study of compounds having antibacterial activity isolated from Rubus pinfaensis Levl. et Vant.
… and characterised. One new compound after enzymatic hydrolysis yielded a new aglycone, which has been named pinfaensic acid. Acylation and methylation yielded the methyl diacetoxy derivative, which was purified to allow its structural elucidation and hence identify the parent as glucosyl …
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Physicochemical properties of whey protein hydrolysates and their applications in infant formula
… their application in infant formulas. Real-time hydrolysis of whey protein isolate by bromelain was monitored using in-flow small-angle X-ray scattering (SAXS). Whey protein molecules were measured with an average size of ~ 20 Å. During hydrolysis, structural transformations including the …
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Ultrasound-assisted enzymatic extraction of protein hydrolysates from brewer's spent grain
… In this research, an ultrasound-assisted enzymatic extraction was designed to extract protein hydrolysates from BSG. Original BSG and ultrasound pretreated BSG were hydrolyzed under different enzyme (Alcalase) loadings and incubation times. Centrifugation was applied to separate …
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Integration of Extrusion and Clean Fractionation Processes as a Pretreatment Technology of Lignocellulosic Biomasses
… (extension and clean fractionation) in terms of enzymatic hydrolysis glucose yield and percent lignin and hemicellulose extraction. Statistical analyses and optimizations were performed for each of the feedstocks using Response Surface Methodology.<br> Raw prairie cordgrass (PCG), switchgrass …
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