Effect of Partial Replacement of Soybean and Corn with Dietary Chickpea (Raw, Autoclaved, or Microwaved) on Production Performance of Laying Quails and Egg Quality

Ahmet Yusuf Ş,engü,l,Sü,leyman Ç,aliş,lar 한국축산식품학회 2020 한국축산식품학회지 Vol.40 No.3

This study was conducted to investigate whether adding different levels of raw or differently processed chickpea into different diets of laying quails affected live weight, feed intake, feed efficiency, egg weight and internal and external egg quality. Chickpea was used as raw, autoclaved or microwave-processed, and it was involved in the diets on two different levels (20% and 40%). The sample was divided into 7 groups including the control, 20% and 40% raw, 20% and 40% autoclaved, and 20% and 40% microwaveprocessed groups. 336 ten-week-old female laying quails were used in the study, and the experiment continued for 19 weeks. In the study, the differences among the groups were insignificant in terms of live weight, feed intake, feed efficiency, egg weight and egg quality characteristics such as shell thickness, shell weight, yolk weight, yolk color and albumin index. The differences were significant in terms of the shape index, Haugh unit (p<0.05) and yolk index (p<0.01). Consequently, it was observed that different thermal processes on chickpeas did not usually have a significant effect on the yield performance of the quails, and the results that were obtained were similar to the other groups. However, it was determined that some egg quality characteristics were affected by the autoclaving and microwaving processes. Between the thermal processes, it may be stated that autoclaving provided better results.

A modelling study on hydrolysis of whey lactose and stability of β-galactosidase

Belma Özbek,Elçin Demirhan,Dilek K l ç Apar 한국화학공학회 2010 Korean Journal of Chemical Engineering Vol.27 No.2

In the present study, the effect of process conditions on whey lactose hydrolysis and enzyme inactivation were investigated. The experiments were carried out in 250 mL of 25 mM phosphate buffer solution by using β-galactosidase produced from Kluyveromyces marxianus lactis in a batch reactor system. The degree of lactose hydrolysis (%) and residual enzyme activity (%) against time were investigated versus lactose concentration, enzyme concentration,temperature and pH. The mathematical models were derived from the experimental data to show the effect of process conditions on lactose hydrolysis and residual enzyme activity (in the presence and absence of lactose). At the optimum process conditions obtained (50 g/L of lactose concentration, 1 mL/L of enzyme concentration, 37 oC of temperature and pH 6.5), 81% of lactose was hydrolyzed and enzyme lost its activity by 32%. The activation energy for hydrolysis reaction (EA) and the enzymatic inactivation energy (ED) were calculated as 52.7 kJ/mol and 96.7 kJ/mol. Mathematical models at various process conditions have been confirmed with the experimental results.

Sesame cake protein hydrolysis by alcalase: Effects of process parameters on hydrolysis, solubilisation, and enzyme inactivation

Elçin Demirhan,Belma Özbek,Dilek K l ç Apar 한국화학공학회 2011 Korean Journal of Chemical Engineering Vol.28 No.1

We investigated the effects of process parameters (substrate concentration, enzyme concentration, temperature and pH) on the hydrolysis and solubilization of sesame cake protein as well as enzyme stability. The sesame cake protein was hydrolyzed by Alcalase enzyme (a bacterial protease produced by a selected strain of Bacillus Licheniformis)that was chosen among five commercial enzymes examined. The optimum process conditions for hydrolysis and solubilization were obtained as 15 g L^(−1) substrate concentration, 3 ml L^(−1) enzyme concentration, 50 ℃ and pH 8.5. Under these conditions, the values of degree of hydrolysis and solubilization were found as 26.3% and 82.1%, respectively,and enzyme lost its activity by approx. 56% at the end of 120 min processing time. Modeling studies were performed to determine the kinetics of hydrolysis, solubilization and enzyme inactivation. The relationship between hydrolysis and solubilization was found linear for all experimental conditions examined. The inactivation energy of Alcalase at the temperature range of 45-55 ℃ was determined to be 25544 J mol^(−1).

An Improved Hybrid Feature Reduction for Increased Breast Cancer Diagnostic Performance

Ahmet Mert,Niyazi K l ç,Ayd n Akan 대한의용생체공학회 2014 Biomedical Engineering Letters (BMEL) Vol.4 No.3

AbstractPurpose Early and correct diagnosis of a disease is vital forthe success of treatment. Medical diagnostic decision supportsystem can be used to improve the accuracy of the traditionaldiagnosis. As such, various pattern recognition methods arestudied and applied to develop medical diagnostic decisionsupport system. In this study, the effects of dimensionalityreduction techniques with probabilistic neural network (PNN)on breast cancer classification are examined. Methods A hybrid method is proposed using the independentcomponent analysis (ICA) and the discrete wavelet transform(DWT) to reduce feature vectors of Wisconsin diagnosticbreast cancer (WDBC) data set. Two independent components(ICs), and one approximation coefficient of the DWT areused as a reduced feature vector to classify breast cancer usingPNN. Performance measures such as accuracy, sensitivity,specificity, Youden’s index and the receiver operatingcharacteristics (ROC) curve are computed to indicate theadvantages of the hybrid feature reduction. Results The proposed feature reduction approach using ICAand DWT improves the diagnostic capability of the PNNclassifier. The hybrid feature reduction has a higher diagnosticcapability than the original thirty features using PNN as aclassifier. Accuracy and sensitivity are 96.31% and 98.88%,while the results of the classification using the original thirtyfeatures are 92.09% and 95.52%. Conclusions Feature reduction approach using ICA andDWT together increases the performance measures of breast cancer classification using PNN, while reducing computational complexity.

Can Fecal Calprotectin Level Be Used as a Markers of Inflammation in the Diagnosis and Follow-Up of Cow's Milk Protein Allergy?

Ömer Faruk Beşer,,Selim Sancak,Tülay Erkan,Tufan Kutlu,Haluk Çokuğraş,Fügen Ç. Çokuğraş 대한천식알레르기학회 2014 Allergy, Asthma & Immunology Research Vol.6 No.1

Purpose: Calprotectin is a cytosolic protein with immunomodulatory, antimicrobial, and antiproliferative actions. The concentration of calprotectin increases in infection, inflammation, and malignancy. We determined if calprotectin can be used as a marker for the diagnosis and follow-up of bowel inflammation in cow’s milk protein allergy (CMPA). Methods: In total, 32 patients newly diagnosed with CMPA were included (24 IgE-mediated, 8 non-IgE-mediated). In all subjects, a complete blood count, total IgE, cow’s milk-specific IgE, and fecal calprotectin (FC) were assessed before and after a cow’s milk protein (CMP) elimination diet was started. The results were compared with those of 39 healthy children. Results: The mean FC value before the CMP elimination diet was 516±311 μg/g in the 32 patients with CMPA and 296±94 μg/g in the control group (P=0.011). The mean FC value after the diet in these patients was 254±169 μg/g, which was significantly different from the mean value before the CMP elimination diet (P<0.001). When we compared FC levels before the CMP elimination diet in the IgE-mediated group with the control group, we found no significant statistical difference (P=0.142). The mean FC value before the CMP elimination diet was 886±278 μg/g in the non-IgE-mediated group and 296±94 μg/g in the control group; this difference was statistically significant (P<0.001). In the IgE-mediated and non-IgE-mediated groups, FC values after CMP elimination diet were 218±90 μg/g and 359±288 μg/g, respectively, and FC values before CMP elimination diet were 392±209 μg/g and 886±278 μg/g, respectively; these differences were statistically significant (P=0.001 and P=0.025, respectively). Conclusions: FC levels may be a useful marker for follow-up treatment and recurrence determination in CMPA.

Bifunctional Fe-SBA-15-SO3H Mesoporous Catalysts with Different Si/Fe Molar Ratios: Synthesis, Characterization and Catalytic Activity

Sezer Erdem,Beyhan Erdem,Ramis Mustafa Öksüzo lu,Alime Ç tak 대한화학회 2013 Bulletin of the Korean Chemical Society Vol.34 No.5

Bifunctional Fe-SBA-15-SO3H mesoporous materials with different Si/Fe molar ratios (3, 5, and 7) have been synthesized via a simple direct hydrothermal method and characterized by XRD, N2-adsorption/desorption, TG/DTG and FT-IR techniques, and used as solid acid catalysts in the esterification of lactic acid with methanol. XRD and N2 sorption characterizations show successful iron doping within the mesoporous channels of SBA-15-SO3H. The FT-IR and TG/DTG characterizations also reveal the presence of iron. With the incorporation of Fe ions into the SBA-15-SO3H, the acid sites substantially increased because of the selfseparated acidity of the hydrolysis of Fe3+ solutions. However, in the Si/Fe = 3 molar ratio, the catalytic conversion decreased which is caused by the reduced cooperation effect between the acid pairs due to the weakened hydrogen bonds and collapse of the pore structure. This further suggests that the mesoporous structure decreases with the decrease in Si/Fe ratio.

Retinal Nerve Fiber Layer Thickness and Its Relationship With Executive Functions in Adult Attention Deficit Hyperactivity Disorder Patients

Derya Kaymak,I˙brahim Gü,ndog˘mus¸,Mihriban Dalkıran,Murat Kü,ç,ü,kevciliog˘ lu,Ö,zcan Uzun 대한신경정신의학회 2021 PSYCHIATRY INVESTIGATION Vol.18 No.12

Objective The aim of this study was to compare the thickness of the retinal nerve fiber layer (RNFL) with controls in individuals with attention deficit hyperactivity disorder (ADHD) and to examine the relationship between RNFL thickness and the level of performance in disease severity and executive function tests in ADHD cases.Methods The study included 38 volunteer patients diagnosed with ADHD and 30 healthy volunteers. Adult ADHD self-report scale was used for ADHD symptom severity. Executive functions were evaluated by Digit Span Test, Verbal Fluency Test, Stroop Test, and Trail Making Test. RNFL thickness of all participants was evaluated using optical coherence tomography (OCT).Results In the comparison of RNFL values, it was found that right mean, right temporal, right temporal inferior, left mean, left nasal, and left nasal inferior quadrant values were statistically thinner in ADHD cases compared to the control group (p<0.05). There was no statistically significant correlation between the mean RNFL thickness values of the right and left eyes of ADHD cases and the symptom severity and performance levels in executive function tests.Conclusion This study is a guide in terms of being the first study investigating the relationship between RNFL thickness, symptom severity, and various neuropsychological tests in adults with ADHD.

High-fat Diet Enhances Gastric Contractility, but Abolishes Nesfatin-1-induced Inhibition of Gastric Emptying

( Zarife N Özdemir-kumral ),( Türkan Koyuncuoğlu ),( Sevil Arabacı-tamer ),( Özlem T Çilingir-kaya ),( Ayça K Köroğlu ),( Meral Yüksel ),( Berrak Ç Yeğen ) 대한소화기기능성질환·운동학회(구 대한소화관운동학회) 2021 Journal of Neurogastroenterology and Motility (JNM Vol.27 No.2

Background/Aims Gastrointestinal motility changes contribute to development and maintenance of obesity. Nesfatin-1 (NES-1) is involved in central appetite control. The aim is to elucidate effects of NES-1 and high-fat diet (HFD) on gastrointestinal motility and to explore myenteric neuron expressions of tyrosine hydroxylase (TH), vasoactive intestinal peptide (VIP), and neuronal nitric oxide synthase (nNOS) in HFD-induced oxidative injury. Methods Sprague-Dawley rats were fed with normal diet (ND) or HFD. Gastric emptying rate was measured following NES-1 (5 pmol/rat, intracerebroventricular) preceded by subcutaneous injections of glucagon-like peptide 1 (GLP-1), cholecystokinin 1 (CCK-1), and gastrin/CCK-2 receptor antagonists. In carbachol-contracted gastric and ileal strips, contractile changes were recorded by adding NES- 1 (0.3 nmol/L), GLP-1, CCK-1, and gastrin/CCK-2 antagonists. Results Neither HFD nor NES-1 changed methylcellulose emptying, but NES-1 delayed saline emptying in cannulated ND-rats. Inhibitory effect of NES-1 on gastric emptying in ND-rats was reversed by all antagonists, and abolished in HFD-rats. In HFD-rats, carbachol-induced contractility was enhanced in gastric, but inhibited in ileal strips. HFD increased body weight, while serum triglycerides, alanine transaminase, aspartate aminotransferase, glucose, and levels of malondialdehyde, glutathione, myeloperoxidase activity, and luminol-chemiluminescence in hepatic, ileal, and adipose tissues were similar in ND- and HFD-rats, but only lucigenin-chemiluminescence was increased in HFD-rats. Vasoactive intestinal peptide (VIP) and TH immunoreactivities were depressed and nNOS immunoreactivity was increased in gastric tissues of HFD-rats, while VIP and TH were enhanced, but nNOS was reduced in their intestines. Conclusions HFD caused mild systemic inflammation, disrupted enteric innervation, enhanced gastric contractility, inhibited ileal contractility, and eliminated inhibitory effect of NES-1 on gastric motility. (J Neurogastroenterol Motil 2021;27:265-278)

Validity and Reliability of the Turkish Version of Generalized Anxiety Disorder Scale-Revised

Anıl Gü,ndü,z,Ibrahim Gü,ndog˘mus,Sencan Sertç,elik,Betü,l Hacer Engin,Aysel I s¸ler,Alis¸an Burak Yas¸ar,Hatice Gö,nü,l,Arif Ç,ipil,Elvan Bas¸ak Usta Gü,ndü,z 대한신경정신의학회 2021 PSYCHIATRY INVESTIGATION Vol.18 No.10

Objective This study aims to assess the psychometric values of the Generalized Anxiety Disorder Scale-Revised (GADS-R) which measures the intensity and duration of worry, various coping and avoidance strategies to cope with worrying, and positive and negative metacognitive beliefs about worrying. Methods 114 patients with generalized anxiety disorder and 198 healthy controls were included in the study. These patients were diagnosed according to DSM-IV TR, and the primary diagnosis of the patients was generalized anxiety disorder which was confirmed via SCID I and II, subsequently. Sociodemographic form, GADS-R total and subscale scores, and Meta-Cognitions Questionnaire-30 (MCQ-30), Beck Depression Inventory (BDI), Beck Anxiety Inventory (BAI), Generalized Anxiety Disorder-7 Scale (GAD-7), and Penn State Worry Questionnaire (PSWQ) were used to assess validity, reliability and cut-off point. Results GADS-R total and subscale scores and MCQ-30, BDI, BAI, GAD-7, and PSWQ were found to be statistically higher in the patients with GAD compared to a healthy control group. GADS-R has five factors and showed relatively acceptable sensitivity and specificity for detecting anxiety disorders at a cut-off point of 1188. Conclusion The GADS-R is a valid and reliable scale that can be used in the Turkish population as an assessment tool.