Browsing by Author "Salgin, Sema"
Now showing items 1-16 of 16
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Bioconjugation of Magnetic Iron Oxide Nanoparticles and Cross-Linked Enzyme Aggregates: Characterization and Comparison of CLEAs and Magnetic CLEAs
Salgin, Sema; Salgin, Ugur (BENTHAM SCIENCE PUBL LTD, 2017)Background: The separation of enzymes from the bio-product medium constitutes a significant part of total process cost. Therefore, it is of crucial importance that the separation processes for enzymes be specially developed. ... -
Crossflow ultraflitration of binary biomolecule mixture: Analysis of permeate flux, cake resistance and sieving coefficient
Salgin, Ugur; Salgin, Sema (WILEY-V C H VERLAG GMBH, 2007)The aim of this paper is to demonstrate the effects of hydrodynamic conditions on the permeate flux, cake resistance and sieving coefficient in a crossflow ultrafiltration process separating biomolecules of different ... -
Determination of correct zeta potential of polyether sulfone membranes using CLC and AGC: ionic environment effect
Salgin, Sema; Salgin, Ugur; Tuzlali, Nagihan (TAYLOR & FRANCIS INC, 2016)In this study, the correct and apparent zeta potential of polyether sulfone (PES) ultrafiltration membranes at different ionic environments were determined using streaming potential measurements. The apparent zeta potential ... -
Effect of main process parameters on extraction of pine kernel lipid using supercritical green solvents: Solubility models and lipid profiles
Salgin, Ugur; Salgin, Sema (ELSEVIER SCIENCE BV, 2013)Supercritical fluid extraction of pine kernel lipids from Pinus pinea L using green solvents (only CO2 or mixed with ethanol) was performed in a laboratory scale extraction system. For the first time in this study the ... -
Effects of additives on the activity and enantioselectivity of Candida rugosa lipase a in a biphasic medium
Salgin, Sema; Takac, Serpil (WILEY-V C H VERLAG GMBH, 2007)The effects of Li+, Na+, K+, Mg2+ and Zn2+ ions on the activity and enantioselectivity of Candida rugosa lipase (CRL) were investigated in a biphasic medium composed of phosphate buffer solution (containing a metal ion ... -
Effects of ionic environment on the interfacial interactions between alpha-amylase and polyether sulphone membranes
Salgin, Sema (WILEY-BLACKWELL, 2011)This work reports a systematic study on the effects of ionic environment on the adsorption of alpha-amylase on 30 kDa polyether sulphone (PES) membranes on the basis of interfacial interaction of PES membrane and alpha-amylase ... -
Effects of ionic environments on bovine serum albumin fouling in a cross-flow ultrafiltration system
Salgin, Sema (WILEY-V C H VERLAG GMBH, 2007)The influence of electrostatic interactions on membrane fouling during the separation of bovine serum albumin (BSA) from solution was studied in a cross-flow ultratiltration system. Experiments were carried out at different ... -
Enantiomeric separation of antidepressant drug fluoxetine based on chiral membranes
Salgin, Sema; Salgin, Ugur; Tuzlali, Nagihan (DESALINATION PUBL, 2018)In this study, the enantiomeric separation of antidepressant drug fluoxetine (FLX) was carried out using chiral selector-immobilized polyethersulfone (PES) membranes. For this purpose, the chiral selectors BSA, Candida ... -
The enantioselective hydrolysis of racemic naproxen methyl ester in supercritical CO2 using Candida rugosa lipase
Salgin, Ugur; Salgin, Sema; Takac, Serpil (ELSEVIER SCIENCE BV, 2007)The enantioselective hydrolysis of racemic naproxen methyl ester by Candida rugosa lipase (CRL) was studied in aqueous buffer solution/isooctane reaction system in the presence of supercritical CO2. The effects pressure ... -
A new application of supercritical CO2 technology for cross linked enzyme aggregates
Dincyurek, Derya; Aptis, Hasan; Salgin, Sema; Salgin, Ugur (ELSEVIER SCIENCE BV, 2012)… -
Oil recovery in rosehip seeds from food plant waste products using supercritical CO2 extraction
Salgin, Ugur; Salgin, Sema; Ekici, Derya Dincyurek; Uludag, Gamze (ELSEVIER SCIENCE BV, 2016)Valuable oils in rosehip seeds produced as the solid waste during the process of marmalade production using seed-containing fruits were recovered by supercritical CO2 extraction method. The influence of the particle size ... -
Streaming Potential Measurements of Polyethersulfone Ultrafiltration Membranes to Determine Salt Effects on Membrane Zeta Potential
Salgin, Sema; Salgin, Ugur; Soyer, Nagihan (ESG, 2013)A systematic study on the zeta potential of polyethersulfone membranes determined by streaming potential measurements was made to examine various salt effects. Chloride salts; KCl, NaCl, CaCl2 and MgCl2 and potassium salts; ... -
Supercritical fluid extraction of walnut kernel oil
Salgin, Sema; Salgin, Ugur (WILEY-V C H VERLAG GMBH, 2006)The objective of this study was to investigate the effects of the main process parameters on supercritical fluid extraction of walnut (Juglans regia L.) kernel oil. The recovery of walnut kernel oil was performed in a green ... -
Synthesis and Characterization of beta-Cyclodextrin Nanosponge and Its Application for the Removal of p-Nitrophenol from Water
Salgin, Sema; Salgin, Ugur; Vatansever, Ozgun (WILEY, 2017)beta-Cyclodextrin (beta-CD)-based nanosponges (NSs) were synthesized by reacting beta-CD with hexamethylenediisocyanate (HMDI) as the cross-linking agent. The effects of the reaction parameters, such as the beta-CD/HMDI ... -
Zeta Potentials and Isoelectric Points of Biomolecules: The Effects of Ion Types and Ionic Strengths
Salgin, Sema; Salgin, Ugur; Bahadir, Seda (ELECTROCHEMICAL SCIENCE GROUP, 2012)A systematic study of the zeta potential and isoelectric point of biomolecules such as BSA, amylase, invertase and phenylalanine has been performed in various salt solutions for 0.001 M and 0.1 M ionic strenght. Chloride ...