Hasan Ertaş

ORCID: 0000-0002-5539-3732
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Research Areas
  • Analytical chemistry methods development
  • Salmonella and Campylobacter epidemiology
  • Veterinary medicine and infectious diseases
  • Analytical Chemistry and Chromatography
  • Pesticide Residue Analysis and Safety
  • Identification and Quantification in Food
  • Advanced Chemical Sensor Technologies
  • Listeria monocytogenes in Food Safety
  • Microbial infections and disease research
  • Essential Oils and Antimicrobial Activity
  • Viral gastroenteritis research and epidemiology
  • Edible Oils Quality and Analysis
  • Electrochemical Analysis and Applications
  • Forensic Toxicology and Drug Analysis
  • Skin Protection and Aging
  • Spectroscopy and Chemometric Analyses
  • Isotope Analysis in Ecology
  • Escherichia coli research studies
  • Electrochemical sensors and biosensors
  • Metabolomics and Mass Spectrometry Studies
  • Indoor Air Quality and Microbial Exposure
  • Pharmacological Effects and Assays
  • Biosensors and Analytical Detection
  • Mycobacterium research and diagnosis
  • Aquaculture disease management and microbiota

Ege University
2013-2024

Sağlık Bilimleri Üniversitesi
2018

Fırat University
2000-2013

Serum samples collected randomly from 416 cattle in 48 herds, and 411 sheep 47 flocks, eight different locations the east of Turkey between June December 1998, were examined by indirect fluorescent antibody test (IFAT) to determine prevalence Q fever. The age, sex, breed, tick control abortion history animals also recorded. In addition, 102 serum apparently healthy people who at risk contracting disease, such as farmers, veterinarians, abattoir laboratory workers, veterinary students....

10.1136/vr.146.5.131 article EN Veterinary Record 2000-01-01

A total of 46 Listeria spp. were isolated from 719 samples (milk, bulk tank swabs, cheese, feed, water, faeces and the environment) collected 415 cattle 304 sheep over 12 months (from February 2007 to January 2008). These isolates identified by conventional PCR techniques as belonging L. monocytogenes (17.4%), innocua (39.1%), seeligeri 17.4%), grayi (15.2%) welshimeri (11%). No ivanovii any samples. not cheese swabs. With regard seasonal variations most in spring winter seasons. The eight...

10.17221/1551-vetmed article EN cc-by-nc Veterinární Medicína 2011-08-31

Abstract The analysis of UV filters (UVFs) in water has become increasingly important due to their adverse effects on aquatic organisms and humans. This study describes a method for the determination benzophenone derivatives UVF wastewater samples. selected UVFs are 2‐hydroxy‐4‐methoxybenzophenone (BP‐3), 2,4‐dihydroxybenzophenone (BP‐1), 4‐hydroxybenzophenone (4HB), 2,2′‐dihydroxy‐4‐methoxybenzophenone (DHMB) lastly, 4,4′‐dihydroxybenzophenone (4DHB). includes solid‐phase extraction (SPE)...

10.1002/clen.202300145 article EN cc-by-nc-nd CLEAN - Soil Air Water 2024-05-20

In this study, C. perfringens strains isolated from healthy and diseased sheep were analysed by multiplex PCR in order to detect the presence of alpha, beta, epsilon, iota enterotoxin genes. was 52 104 with enterotoxemia signs 61 194 clinically sheep. Genotyping indicated that 33 (64%) type A, 11 (21%) D 8 (15%) Of sheep, 58 (95%) A 3 (5%) D. The other types not detected, none isolates contained gene. This result indicates does play important role occurence

10.17221/5646-vetmed article EN cc-by-nc Veterinární Medicína 2005-10-31

Modern treatments of Parkinson's disease include the use carbidopa and droxidopa along with levodopa that demonstrates necessity for their binary simultaneous determination in pharmaceutical tablets biological matrices. This study presents a rapid, accurate, precise method these analytes by liquid chromatography–tandem mass spectrometry first time. Accordingly, performances two types analytical columns, namely, octadecylsilane hydrophilic interaction chromatographic were tested better...

10.1080/00032719.2017.1316283 article EN Analytical Letters 2017-06-29

Abstract Research was aimed at the determination of fatty acid and volatile composition oils made from Ayvalık olives grown in Turkey effects played by maturity altitude on composition. Samples were obtained five orchards located 25, 74, 132, 202 250 m above sea level Edremit (Balıkesir, Turkey). Olive samples harvested three levels (green, semi‐black black) 2007 2008 to extract oil. E‐2‐hexenal found be main compound all its concentration decreased as progressed. Hexanal E‐1‐pentene‐3‐one...

10.1002/ffj.3300 article EN Flavour and Fragrance Journal 2015-12-09

Abstract A simple, rapid, and sensitive method is developed for the determination of UV filters in river waters by applying vortex‐assisted dispersive liquid–liquid microextraction based on solidified floating organic droplet technique followed injector port silylation (IPS) a gas chromatography‐tandem mass spectrometry system. Statistical experimental design methods including general factorial design, one factor at time, central composite face‐centered are used optimization purposes. Under...

10.1002/clen.202100246 article EN CLEAN - Soil Air Water 2022-05-14

Abstract In this study, polyvinyl alcohol/Nafion nanofibrous composite membranes were produced to investigate their possible application as a polymer electrolyte membrane (PEM) in direct methanol fuel cells. Electrospinning method was used for production, which the mixture of alcohol (PVA) and Nafion solutions directly electrospun. Produced nanofibers subjected physical stabilization, filler application, sulfonating produce membranes. PVA polymers also materials. The properties resultant...

10.1002/pen.26943 article EN Polymer Engineering and Science 2024-08-29

Abstract Utilization of renewable resources and development new processes aimed at converting these materials into value added bio‐products are gaining more emphasis. The scope this study was to optimize supercritical CO 2 extraction (SFE) parameters such as pressure, temperature flow rate for the yields unsaturated fatty acids from Pistacia terebinthus berries by a Box‐Behnken statistical design. All samples were analyzed GC‐FID. most effective variables pressure ( P < 0.005) ≤ 0.005)....

10.1007/s11746-010-1753-0 article EN Journal of the American Oil Chemists Society 2011-01-07

Abstract In this study, 100 gall bladder samples of sheep slaughtered at an abattoir in Elazıgˇ province were examined for Campylobacter jejuni and coli by culture polymerase chain reaction (PCR). Preston Agar supplemented with 7% horse blood Selective Supplement (Oxoid, Hampshire, UK) used isolation the agents. spp. isolated 66 samples, they identified as 34% C. 32% . A multiplex PCR based upon use ceuE gene‐specific primers was applied on DNA extracted from isolates. All strains that...

10.1046/j.1439-0450.2003.00678.x article EN Journal of Veterinary Medicine Series B 2003-07-21
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