Burak POLAT

Burak POLAT

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Research Focus & Metrics

Academic Career Length

11Years (2016-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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14 September 2019 in Journal of Environmental Science and Health, Part B
Verified
Journal Article
Closed access
BPBurak POLAT
Burak POLAT
OTOsman Tiryaki
Osman Tiryaki
The effects of washing treatments on removal rates of some pesticides residues (acetamiprid, chlorpyrifos and formetanate hydrochloride) on pepper were investigated. Method verification was conducted through spiking pepper samples at 0.1, 1.0 and 10.0 × MRL. QuEChERS method produced average recovery of 104.91% with relative standard deviation (RSD) of 13.41%. LOQ values of acetamiprid, chlorpyrifos and formetanate hydrochloride were estimated as 2, 10 and 5 µg/kg, respectively. Capia peppers grown in open fields were sprayed three times with pesticides. Peppers were harvested after 1st, 2nd and 3rd day of the treatments. Then the peppers were subjected to tap water, acetic acid and citric acid washing and ultrasonic cleaning treatments (for 2 and 5 min). Based on three different harvest times and two different washing durations, processing factors (PFs) and reduction rates were calculated for each washing treatment. The residues gradually decreased during washing treatments with increasing process duration. Similarly, a gradual reduction was noted with the progress of harvest times. This in turn corresponded to an increase in PF. Ultrasonic cleaning and citric acid (9%) washing were more effective than the others. Non-systemic pesticides (chlorpyrifos) were more readily removed than the systemic ones (acetamiprid). Similarly, highly soluble pesticides exhibited higher reduction.

8 November 2018 in Journal of Environmental Science and Health, Part B
Verified
Journal Article
Closed access
BPBurak POLAT
Burak POLAT
OTOsman Tiryaki
Osman Tiryaki
The present study was conducted to determine pesticide (emamectin-benzoate, penconazole and imidacloprid) residues over tomatoes by using QuEChERS method. The method was validated by spiking tomato matrix at 0.1, 1.0, and 10.0 MRL levels of the pesticides. Tomatoes were harvested from two conventional and two Integrated Pest Management-grown fields. Laboratory samples were taken from the bulk samples. Analyses of spiked and real-field tomatoes were performed with QuEChERS procedure. Experimental samples were subjected to LC-MS/MS analysis. As indicated in “CAC/GL 40-1993,” representative sample matrix (apple) calibration was used for quantification. The overall recovery was 107.12% with a relative standard deviation of 17.96% (n = 162). Present values were within the specified recovery ranges (60-140%) and repeatability value of (RSD ≤20%) of SANCO. Analysis of field experiment samples showed that both conventional tomato plots had trace levels (less than MRL) of emamectin-benzoate and imidacloprid, whereas there were not any pesticide residues in both IPM tomato plots

24 July 2023 in Environmental Monitoring and Assessment
Verified
Journal Article
Closed access
PDF file
BPBurak POLAT
Burak POLAT
OTOsman Tiryaki
Osman Tiryaki

25 February 2021 in Turkish Journal of Entomology
Verified
Journal Article
Open access
PDF file
BPBurak POLAT
Burak POLAT
İnsektisit kullanımı tarımda zararlı kontrolü için en yaygın metottur. Bu çalışmada yıkama işlemlerinin üzümler üzerindeki insektisit kalıntılarının (chlorpyrifos-methyl ve lambda-cyhalothrin) azaltılmasına etkisi araştırılmıştır. Deneme Türkiye’de Manisa İli-Sarıgöl ilçesinde 2020 yılında Sultana çekirdeksiz üzüm bağında kurulmuştur. Metot doğrulama, geri kazanım, ölçüm limiti, tekrarlanabilirlik ve kesinlik ile gerçekleştirilmiştir. İnsektisit içermeyen üzüm numuneleri her pestisit için 0.5, 1 ve 5 kat MRL seviyelerinde sabitlenmiştir. Chlorpyrifos-methyl ve lambda-cyhalothrin geri alımları, sırasıyla %102 ve %101 olarak bulunmuştur. Tüm QuEChERS yönteminin geri kazanımı %101 olarak bulunmuştur. Bu rakamlar SANTE geri kazanım limitleri (%60-140) arasındadır. İnsektisitlerin tespit limitleri, MRL'nin altında bulunmuştur. Bağda üzümlere dört defa insektisit uygulanmıştır. Son insektisit uygulamasının 0., 2., 4. ve 7. günlerinde üzümler hasat edilmiş ve çeşme suyu, sitrik ve asetik asit ve ultrasonik yıkama işlemlerine tabi tutulmuştur. Yıkama işlemi kalıntıları azaltmış ve artan yıkama süresiyle kalıntının azalma oranları artmıştır. İlerleyen hasat zamanları ile kalıntının giderilmesi azalmıştır. Sitrik ve asetik asit yıkama ve ultrasonik yıkama, musluk suyu ile yıkamadan daha etkili bulunmuştur.

1 March 2016 in Phytoparasitica
Verified
Journal Article
Closed access
PDF file
BPBurak POLAT
Burak POLAT
AÖAli Özpınar
Ali Özpınar
AŞAli Kürşat Şahin
Ali Kürşat Şahin

15 February 2020 in ANADOLU JOURNAL OF AGRICULTURAL SCIENCES
Verified
Journal Article
Open access
PDF file
HÇHayriye Çatak
Hayriye Çatak
BPBurak POLAT
Burak POLAT
OTOsman Ti̇ryaki̇
Osman Ti̇ryaki̇
En tr Removal of pirimiphos-methyl residues from Capia peppers by different washing applications was investigated. Capia peppers, grown in the field located in Çıplak village of Çanakkale in 2018, were sprayed three times with pirimiphos-methyl. Peppers were harvested after 1st, 2nd and 3rd day of last pesticide application. Then, peppers were treated with tap water, acetic acid and citric acid solutions and ultrasonic cleaning applications (for 2 and 5 min.). Residue analyses were carried out with QuEChERS analytical method. Processing factors (Pf) and reduction rates were calculated for each washing application based on three different harvest times and two different application times. Pf values were less than 1 for all cases. The residues decreased during washing applications with increasing washing duration. Also, reduction rate of primphosmethyl residues decreased with the increased harvest times. This in turn corresponded to an increase in Pf. The order of washing applications, in terms of the reduction rates of the pirimiphos-methyl residue (from highest to lowest), is as follows; ultrasonic cleaning> sitric acid> acetic acid> tap water. The lowest reduction rate (14.97%) for pirimiphos-methyl was observed in 2 min tap water applications of 2nd -day samples. The higher reduction rate (87.16%) of pirimiphos-methyl was observed in 5 min ultrasonic cleaning applications of zero day samples. Bu çalışmada pirimiphos-methyl kalıntısının kapya biberinde farklı yıkama uygulamaları ile azaltılması amaçlanmıştır. Çanakkale ili Çıplak köyünde 2018 yılında yetiştirilen kapya biberlerinde 3 defa pirimiphos-methyl etkili maddeli insektisit uygulanmıştır. Biberler, son insektisit uygulamasının 1., 2., ve 3. günlerinde hasat edilmiştir. Daha sonra biberler, çeşme suyu, sitrik asit, asetik asit çözeltileri ve ultrasonic banyo ile yıkama uygulamalarından (2 ve 5 dakika boyunca) geçirilmiştir. Kalıntı analizleri, QuEChERS analiz methodu ile gerçekleştirilmiştir. Her yıkama uygulaması için işleme faktörü (Pf) ve pestisit azalma oranları 3 farklı hasat zamanı ve 2 farklı uygulama süresi esas alınarak hesaplanmıştır. Pf değerleri, tüm uygulamalarda 1’den daha az bulunmuştur. Yıkama süreleri arttıkça (2 ve 5 dk) kalıntı miktarı azalmıştır. Aynı şekilde hasat zamanı arttıkça kalıntı azalma oranı da düşmüştür. Bu durumda Pf de artış göstermiştir. Yıkama uygulamalarının pirimiphos-methyl kalıntısını azaltma oranlarına göre etkinlikliklerinin sırasıyla ultrasonik yıkama> sitrik asit >asetik asit> çeşme suyu şeklinde olduğu belirlenmiştir. Pirimiphos-methyl için en düşük azalma; 2. günde alınan örneklerde 2 dakikalık çeşme suyu (%14.97) uygulaması ile, en yüksek kalıntı azalma ise 1. günde alınan örneklerde 5 dakikalık ultrasonik yıkamada (%87.16) elde edilmiştir.