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Kinetics of hydrogen peroxide generated from live and dead ram spermatozoa and the effects of catalase and oxidase substrates addition
reactive oxygen species ram antioxidant
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2016/2/23
The generation of hydrogen peroxide (H2O2) by ram spermatozoa (spz) was measured using a flurometric assay with 10-acetyl-3,7-dihydroxyphenoxazine agent as a probe for H2O2 detection. The kinetics of ...
Microwave drying of green bean slices: drying kinetics and physical quality
Phaseolus vulgaris effective diffusivity drying mathematical modelling rehydration colour
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2015/7/28
Several microwave power settings were applied to green beans in order to determine the effect on the drying kinetics along with the rehydration ratio and colour values. In the experiments, several mic...
Modelling the Kinetics of Water Loss during Deep-Fat Frying of Potato Particulates
Arrhenius relationship activation energy
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2014/11/28
We developed an empirical model to describe the water loss during deep-fat frying. Raw potato particulates were
sliced to form cylinders and subjected to the deep-fat frying at isothermal temperatur...
Antioxidant activity coefficient, mechanism, and kinetics of different derivatives of flavones and flavanones towards superoxide radical
antioxidant activity coefficient flavonoids binding constant homogeneous kinetics cyclic voltammetry
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2014/2/25
A systematic investigation of the electrochemically generated superoxide radical (O2●–) has been conducted in the presence of some flavonoids. Cyclic voltammetry was used to generate O2●– by reducing ...
Kinetics of hydrolysis of egg white protein by pepsin
egg white protein pepsin enzymatic hydrolysis kinetics bioactive peptides
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2014/2/27
Taking into account the enzyme inactivation and substrate inhibition, the bioreaction mechanism and kinetics characteristic of egg white protein (EWP) enzymatic hydrolysis by pepsin were investigated....
Modelling the drying kinetics of canola in fluidised bed dryer
canola fluidised bed drying kinetics food grain drying activation energy
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2014/2/27
Canola, one of the new oil seeds in Iran, is investigated for drying in Batch fluidised beds. Experiments were conducted to assess the kinetics of drying in the temperature range of 30–100°C. The dryi...
Study on kinetics of mass transfer in water-boiled salted duck during wet-curing
Water-boiled salted duck Mass transfer Wet-curing
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2012/8/13
Curing is the most important process for the production of water-boiled salted duck. This work was designed to compare the difference in mass transfer of water and salt in water-boiled salted duck amo...
Autoxidation Kinetics for Polyunsaturated Acylglycerols
autoxidation acylglycerol kinetics enthalpy-entropy compensation
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2009/7/7
Autoxidative processes of mono- and trilinolein and mono- and trilinolenin were observed at different temperatures. Rate expression of the autocatalytic type was applicable to the entire autoxidative ...
Kinetics of Moisture Uptake of Osmo-Foam-Mat Dried Mango Powders and Application of Sorption Isotherms to Shelf-Life Prediction
Osmo-Foam-Mat Dried Mango Powders Shelf-Life Prediction
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2016/5/31
The kinetics of moisture uptake by foam-mat dried powder from mango pulp was evaluated at four temperatures (10, 20, 30 and 40°C) and two relative humidities (55 and 80%), while moisture sorption data...
Discoloration Kinetics of L-Ascorbyl 6-Palmitate Powders with Various Water Contents
L-ascorbyl 6-palmitate discoloration kinetics water content
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2009/5/20
The discoloration of L-ascorbyl 6-palmitate, with water contents ranging from 2 to 10% (w/w) during storage at temperatures of 60 to 90°C, was investigated by monitoring the absorbance at 500nm of its...
Decomposition Kinetics of 6-O-Monoacyl Ascorbate in Air
Monoacyl ascorbate decomposition kinetics acid
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2009/5/8
6-O-Monoacyl ascorbates were synthesized by the condensation of L-ascorbic acid with caprylic, capric, lauric, myristic or palmitic acid using immobilized lipase in acetone. The decomposition processe...
The Use of Lewis Cell to Investigate the Enzyme Kinetics of an (S)-Hydroxynitrile Lyase in Two-Phase Systems
Lewis cell two-phase system mass transfer
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2009/3/20
(S)-Hydroxynitrile lyase from Hevea brasiliensis (HbHnl) (EC 4.1.2.39) catalyzes the reversible synthesis of chiral cyanohydrins from aldehydes or ketones and HCN. The enzymatic formation of (S)-mande...
Comprehensive Enzyme Kinetics
Comprehensive Enzyme Kinetics enzyme-catalyzed reactions
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2009/3/19
This book provides a systematic introduction to the field of enzyme-catalyzed reactions. The content develops from monosubstrate to bisubstrate to trisubstrate reactions, including nonhyperbolic rate ...
Influence of process parameters and pre-treatments on quality and drying kinetics of apple samples
drying kinetics convection drying apple pre-treatment rehydration colour
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2014/3/10
The aim of this research was to determine the influence of the process parameters and pre-treatment methods on the quality and drying kinetics of apple samples of the Florina variety using standard an...
Thermostability of Soluble and Bound Peroxidases from Artichoke and a Mathematical Model of Its Inactivation Kinetics
artichoke peroxidase blanching
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2009/2/26
Soluble peroxidases (SP), and ionically (IBP) and covalently (CBP) bound peroxidases were extracted from leaves and edible part of artichoke heads (heart). The peroxidase (POD) forms showed a characte...