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Showing 1 to 13 of 13 for “"thermal inactivation"”.
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Thermal Inactivation Studies on Bacillus Subtilis Endospores
Made available in DSpace on 2014-12-09T14:36:49Z (GMT). No. of bitstreams: 1 6408401.pdf: 4206227 bytes, checksum: 1bd9f259bd54b42018914769c1c27718 (MD5) Previous issue date: 1964
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Thermal Inactivation and Injury of Staphylococcus Aureus
Made available in DSpace on 2014-12-05T23:08:03Z (GMT). No. of bitstreams: 1 6400523.pdf: 4876228 bytes, checksum: e8aa3e39546c53f0b195710384a97aee (MD5) Previous issue date: 1963
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Thermal Inactivation of Escherichia coli O157:H7 and Salmonella Agona in Wheat Flour
… for ready-to-bake products, although data on thermal inactivation of foodborne pathogens in wheat flour remains scarce. The objective of this research was to first determine appropriate methods and parameters for bacterial inoculation and thermal treatment of wheat flour, and to subsequently …
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Detection, activity and resistance to thermal inactivation of peroxidase in the blue crab (Callinectes sapidus)
… and may cause undesirable quality changes in thermally processed foods. Peroxidase activity and its resistance to thermal inactivation in fresh and pasteurized lump, claw and flake meat of both male and female blue crabs was determined spectrophotometrically. Activity was greatest in the flake …
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Thermal inactivation of Salmonella and Escherichia coli O157:H7 in heat treated, recycled used cooking oil
… surviving populations was utilized to generate thermal death curves. Segmented regression was performed using the Proc NLIN function of SAS (v 9.4) and z-values were calculated using linear regression (SAS v 9.4). Non-linear death curves were observed for all pathogen and temperature …
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A comparison among lipoxygenase, trypsin inhibitor, and urease enzyme inactivation during blanching of dehulled and whole soybeans
This study investigated the thermal inactivation by immersion cooking of antinutritional factors in soybeans while minimizing protein insolubilization. The comparison of inactivation kinetics of lipoxygenase (LO), trypsin inhibitors (TI), and urease (U) enzyme was used to determine the limiting …
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Biochemical Characterization of a Partial Deficiency for Ump Synthase in Holstein Cattle (Enzyme, Genetic Disorder, Metabolic Defect, Hereditary Orotic Aciduria)
… Response to pH was comparable in the two groups. Thermal inactivation of UMP synthase did not distinguish heterozygotes from controls nor did a test of the stability of UMP synthase when hemolysates were stored at 4(DEGREES). Other parameters relating to nucleotide metabolism did not differ …
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Impact of strain variability on the risk presented to chilled foods by non-proteolytic clostridium botulinum
… strong quantitative support for modelling of the thermal properties of the spores. Insights on strain variability were included in a modular quantitative microbial risk assessment (QMRA) for a model dairy-based chilled dessert using a Monte Carlo simulation technique. The model considered four …
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The importance of crystal lattice structure of cellulose in the production and action of cellulase
… differences relative to the crystal forms. The thermal inactivation of various enzyme preparations gave different rates of inactivation. The rates of inactivation were also dependent on the type of crystalline substrate used in the assay. The measurement of the activation energies of various …
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Investigation of the determinants of thermal stability of the nitrile hydratase from Geobacillus pallidus RAPc8
The mechanisms of thermal stability have been a long studied subject for many years with the aim of enhancing thermal stability of protein molecules to enhance their application in industry. The nitrile hydratases group of enzymes catalyse the hydrolysis of nitriles to amides using an exothermic …
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Toward a General Dehydrogenase Enzymatic Scaffold for Industrial Biocatalysis
… and provide resistance to chemical and thermal inactivation. AdhD belongs to the aldo-keto reductase superfamily, a large and diverse family of oxidoreductase enzymes, and shares the canonical (α/β)8-barrel fold and nicotinamide cofactor binding pocket. AdhD has a strong preference for …
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Purification and characterization of an endo-1,4-{u03B2}-D-glucanase and two exo-1,4-{u03B2}-D-glucanases from the cellulase system of Trichoderma reesei
… enzymes, the endoglucanase is most resistant to thermal inactivation retaining 70% of its initial activity on swollen cellulose after a 20 min preincubation at 70°. The optimum pH for activity is ca.4.9 for the endoglucanase and cellobiohydrolase II, whereas cellobiohydrolase I (D) has a broader …
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The Affects of Explosively and Electrically Generated Hydrodynamic Shock Waves on the Bacterial Flora of Beef and Poultry
… whether EHSW could also be used as a non-thermal alternative to reduce the bacterial flora of non-intact or ground meats. The levels of psychrotrophic, lactic, and coliform populations on the surface of whole eye of round steaks submitted to EHSW processing did not differ (P> 0.05) from …