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Showing 1 to 20 of 23 for “"lactase"”.
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Lactase Activity in Steers Fed Large Amounts of Dried Whey
… indicating that it was completely digested. Lactase activity per gram of intestinal tissue was significantly greater in two of fifteen t issue segments and numerically greater in the proximal third of small intestine of steers fed the control diet. Lactase activity per gram tissue protein was …
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Tailoring Microenvironment and Orientation of Immobilized Lactase for Improved Catalysis at Suboptimal pH
… of lactose-rich acid whey as a byproduct. Using lactase to transform this waste into valuable products has emerged as a promising solution. Covalent immobilization allows enzymes to be reused and prevents contamination of the product. While immobilizing lactases has been found to enhance their pH …
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Lactose Hydrolysis by Fungal and Yeast Lactase: Influence on Freezing Point and Dipping Characteristics of Ice Cream
… experiment, ice cream mixes were treated with lactase (EC 3.2.1.23) to cause 0 to 83% lactose hydrolysis. Lactose hydrolysis decreased the freezing point from -1.63oC in the control (0% hydrolysis) to -1.74oC in the 83% hydrolyzed sample (p < 0.05). Firmness decreased from 0.35 J in the control …
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Effects of Glucocorticoids and Limited Nursing on the Digestive Enzyme Ontogeny and Growth of Nursing Piglets (Maltase, Sucrase, Lactase, Amylase, Acth)
Ten experiments were conducted to evaluate the inductive capacity of exogenous hydrocortisone (HYD) and adrenocorticotropic hormone (ACTH) on the developing carbohydrate digestive enzymes and growth rate of nursing piglets. The response of these enzymes to increased creep feed consumption, produced …
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Some nutritional considerations of lactose malabsorption in Mexican American children
… of lactose intolerance and low intestinal lactase activity in otherwise apparently healthy populations. In these individuals, administration of an oral lactose load fails to produce a significant increase in blood glucose concentrations and may be associated with moderate to severe …
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Hydrolyzed-Lactose Whey and Nonfat Dry Milk in Ice Cream
… ice cream were manufactured. A commercial lactase was used to hydrolyze lactose to over 90% conversion and the lactase was inactivated after hydrolysis. The extent of lactose hydrolysis in the mix was adjusted to 50% or 75% by blending non-hydrolyzed nonfat dry milk and whey solids with …
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Breath hydrogen studies of lactose malabsorption in children resident in New Zealand, Cook Islands and Western Samoa
… On returning to New Zealand it was shown that lactase levels took 3 months to normalise. The water supply in Western Samoa was shown to contain very high levels of coliform bacteria. The currently held hypothesis that genetic factors are solely involved in the onset of LM, was not supported. …
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Bioreaction and separation in batch chromatographic columns
… of lactose to glucose and galactose using lactase and the isomerization of glucose to fructose using glucose isomerase. The chromatographic columns employed were jacketed glass columns ranging from 1 m to 2 m long and the internal diameter ranging from 0.97 cm to 1.97 cm. The stationary …
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Early nutrition affects intestinal development and immune response in the neonatal piglet
… did not affect digestive enzyme activity. Lactase and sucrase enzyme activities were measured. Lactase activity was variable over time (P<0.05), and sucrase activity increased over time (p<0.05). Both of these results were not unusual and reflect normal development in the piglet. Intestinal …
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Effects of supplemental osteopontin on intestinal development and serum antibody responses to rotavirus vaccination in piglets
… for the three regions of the small intestine. Lactase and sucrase activities of SR piglets were higher than the two formula-fed groups in the duodenum, lower in the ileum. No significant effects of diet on lactase and sucrase activities were noted between two formula-fed groups in the duodenum …
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Whey-Caseinate Blends and Lactose Hydrolysis in Yogurt Manufacture
… solids in yogurt is the disaccharide, lactose. Lactase enzyme hydrolyzes lactose into glucose and galactose which individually and together are sweeter than lactose itself. The resulting sugar mixture is also more soluble (31), easily digestible by lactose intolerant individuals, and is more …
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Regulation of Intestinal Development and Function in Early-Life Pigs
… before weaning. The medium dose showed greater lactase (P = 0.003) and maltase (P = 0.042) activities in the jejunum, and increased lactase activity in the ileum (P = 0.020). Jejunal IL-β concentrations were greater in control pigs (P = 0.014) compared with other treatments, while mRNA abundance …
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Plastic Embedding Techniques for Light Microscopy Histological Studies
… a further separate development, the enzymes lactase and sucrase were first reported in plastic-embedded jejunum. Subsequently it was shown that these two important disaccharidases for assessing malabsorption were sensitive to specific processing agents and could easily be lost, resulting in …
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Influence of various health beneficial spices on some characteristics of yogurt culture bacteria Lactobacillus acidophilus, and sensor acceptability of spicy probiotic yogurt
… are lactic acid bacteria that produce lactase and reduce the symptoms of malabsorption. Earlier work has shown the influence of spice extracts but the influence of pure spice juice on yogurt culture bacteria is not known. Characteristics of yogurt culture bacteria were measured by …
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Entwicklung und Evaluation von fächerübergreifenden Bildungsangeboten im Schüler*innenlabor teutolab-biotechnologie
… durchgeführt. An dem Kurs Enzymkinetik von Lactase – Lactoseintoleranz verstehen und berechnen nahmen 203 Schüler\*innen aus der Einführungsphase der gymnasialen Oberstufe teil. Es wurde eine quasi-experimentelle Fragebogenstudie im Pre-, Post-, Follow-up-Test-Design durchgeführt. Im Rahmen …
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Combined bioreaction and separation in a simulated counter-current chromatographic bioreactor-separator system
… and glucose in the presence of the enzyme lactase and the biosynthesis of dextran from sucrose using the enzyme dextransucrase. Combined bioreaction and separation has been successfully carried out in the SCCR-S system for the saccharification of modified starch to maltose and dextrin. The …
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Use of Dry Whey and Lactose Hydrolysis in Yogurt Bases
… dry whey in yogurt and frozen desserts. Use of lactase (e-D-galactosidase or E. C. 3. 2. 1. 23 β-D-galactoside galactohydrolase) to hydrolyze lactose, the major carbohydrate of milk, into its constituent monosaccharides glucose and galactose prior to product manufacture has received considerable …
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Influence of infant milk formula processing on protein digestion and gut barrier health in vitro and in vivo
… of claudin-1 in the mucosal scrapings and higher lactase activity in brush border membrane vesicles compared to those pigs fed HT-IMF (P < 0.05). To further investigate these gut responses, in vitro gut barrier models were employed (i.e. polarised monolayers of human enterocytes (Caco-2) and …
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Developmental Regulation of the Expression of Nutrient Transporter and BrushBorder Membrane Hydrolase Genes in the Small Intestine of Piglets
… specific cDNA probes for three disaccharidases (lactase-phlorizin hydrolase, LPH, sucrase-isomaltase, SI, and maltase-glucoamylase, MGA), three peptide hydrolases (aminopeptidase A, APA, aminopeptidase N, APN, and dipeptidyl peptidase IV, DPP IV), two sugar transporters (Na+-dependent glucose …
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