Global ETD Search
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 45 for “"Alpha-amylase"”.
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Maize alpha-amylase: purification and properties and induction by gibberellic acid
Alpha-amylase synthesis can be induced in wheat and barley half-seeds by addition of gibberellic acid (GA) to the incubation medium. In maize, induction in de-embryonated kernels by exogenous GA has been reported in some studies but not others. Alpha-amylase induction was investigated in maize by …
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Maltotetraose production using Pseudomonas stutzeri exo-alpha-amylase in a membrane recycle bioreactor
… mass balance equation also indicated that the $\alpha$-limit dextrin was accumulated in the reactor due to the exo-mechanism of the enzyme. One long-term operation of the MRB was performed to determine the steady state stability and the product purity at prolonged reaction times. A product purity …
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Applications of alpha-amylase corn in the dry grind process for fuel ethanol production
… costs. To address these issues, inclusion of amylase corn was evaluated. This corn contains alpha-amylase enzyme and therefore obviates the need for addition of exogenous alpha-amylase. We analyzed the effects of low liquefaction temperatures (65 and 75˚C) on final ethanol concentrations. Corn …
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Effect of Alpha-Amylase Treatment and Exercise on the Calcium Handling of the Sarcoplasmic Reticulum
… what effect exercise and treatment with a-amylase had on the abilities of the SR to regulate intracellular calcium ([Ca2+]i). Rats were either run on a treadmill for 60 min at a speed of 21 m/min and a 10% grade or were not exercised. Animals were then killed by decapitation after …
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Isolation and Biochemical Characterization of an Alpha-Amylase From Lactobacillus Amylovorus and Sequencing of the Corresponding Gene
In this study the enzyme $\alpha$-amylase ($\alpha$-1,4-D-glucan 4-glucanohydrolase, EC 3.2.1.1) has been isolated and characterized from the extracellular media of Lactobacillus amylovorus DSM 20531. The gene coding for $\alpha$-amylase has been isolated by molecular cloning in Escherichia coli …
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Biochemical characterisation of an alpha-amylase with pullulan hydrolase type III characteristics derived from a hot spring metagenomics library
… low sequence identity to a characterised α-amylase (62.71%) and 61.66% to a characterised pullulan hydrolase type III, and was, therefore, hypothesized to be an α-amylase (EC 3.2.1.1) with pullulan hydrolase type III (EC 3.2.1.x) characteristics. Further sequence analysis indicated that …
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Evaluation of alpha-amylase activity and falling number for soft white and soft red wheat varieties adapted to Michigan
… epidemics were experienced in 2008 and 2009. Alpha-amylase is an important component of PHS and the falling number (FN) test is used by industry to identify sprouted wheat that is unacceptable for various food products. The objectives of this study were to evaluate wheat cultivars adapted to …
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Effect of different sprouting conditions on alpha amylase activity, functional properties of wheat flour and on shelf-life of bread supplemented with sprouted wheat
… is the most important factor affecting α-amylase quantity as well as quality to modify flour functionality significantly, followed by pre-soaking duration and temperature. Sprouted wheat flour post five days germination was utilized at different rates to prepare 100 g composite breads. …
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Stuttering Behavior and Physiological Stress Profiles: A Preliminary Investigation of School -Aged Children
… of stuttering exhibited mean cortisol and alpha-amylase levels that were significantly lower. Though cortisol and alpha-amylase levels were within normal limits, daily circadian rhythms were generally disrupted for both biomarkers. Children with a history of stuttering tended to report …
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\(Pyrococcus\) \( furiosus\) amylase as a Candidate Sterilisation Time-Temperature Integrator
… the hyperthermophilic Pyrococcus furiosus \(\alpha\)amylase is investigated. Reliability and accuracy of the TTIs was determined by exposure to various isothermal and non-isothermal industrially relevant temperature profiles. The integrated temperature history obtained by the TTIs correlated …
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The Relationship of Level of Traumatic Exposure, Perceived Stress, and Resilience with Salivary Cortisol and Salivary Alpha-Amylase Diurnal Rhythm in Palestinian Children 10-12 Years Exposed to Chronic War Violence
… resilience with salivary cortisol and salivary alpha-amylase (sAA) diurnal patterns in Palestinian children, ages 10-12, living in a long standing war zone. Salivary cortisol, a surrogate marker of hypothalamic-pituitary-adrenal axis (HPA) activity, and salivary alpha-amylase, a surrogate marker …
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Salivary Biomarkers of Acute Stress and Insulin Sensitivity in Nonhuman Primates
… and allows short-term assessment. Salivary alpha-amylase (sAA) is a novel biomarker of stress in humans, has implications with diabetes, and could be a new tool for improving health and welfare in zoo animals. The goals of our study were to 1) validate measures of salivary insulin, cortisol …
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Mode of Action of Abscisic Acid in Barley Aleurone Layers: Induction of Proteins by Abscisic Acid
… protein cross-reacts with antibody against an $\alpha$-amylase/subtilisin inhibitor, and the 35/36 kD doublet cross-reacts with antibody against a barley lectin specific for free amino sugars. The most abundant induced protein, p29, can be greatly enriched by a combination of low pH, low …
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Technische Enzyme in Backwaren
… der technischen Enzyme Fungamyl (Novozymes), Amylase TXL (ASA Spezialenzyme GmbH) sowie Lipase FE-01 (ASA Spezialenzyme GmbH) wurden Backversuche durchgeführt, die zeigten, dass Fungamyl und Amylase TXL zu einer verbesserten Brotqualität (Volumenausbeute, Feuchtegehalt, Sensorik) beitrugen. …
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An inventory and pharmacological evaluation of medicinal plants used as anti-diabetes and anti-arthritis in Vhembe District Municipality, Limpopo Province
… Antioxidant, anti-inflammatory, cytotoxicity, alphaamylase and alpha-glucosidase) of five plant species, (Bridellia mollis, Elephantorrihiza burkei, Elaeodendron transvaalense, Senna petersiana and Searsia lancea) used traditionally to manage diabetes were investigated using the standard in …
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Effect of irradiation of head and neck tumours on the proteins' composition of the enamel salivary pellicle
… silver-staining as well as immunodetection of alpha-amylase, IgA and acidic-PRPs. Conclusively to our results, irradiation of the head and neck region seems to affect the quantity but not the chemical composition of the enamel salivary pellicle.
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Interaction Effects between the Cumulative Genetic Score and Psychosocial Stressor on Drinking Urge and Attentional Bias for Alcohol: A Human Laboratory Study
… The current study also examined whether salivary alpha-amylase level or anxiety state mediate the cGxE effects. One hundred five Caucasian young adults (mean age = 19.83; 61% male) went through both control and experimental stress conditions in order. Results showed that, as the cumulative genetic …
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