Yazarlar
- Aglar, Erdal(14)
- Benzer, Fulya(14)
- Kocabaş, Mehmet(13)
- Sabanci, Serdal(12)
- Özçiçek, Esin(12)
- Icier, Filiz(10)
- Karaca Sanyürek, Nesrin(10)
- Kutluyer, Filiz(10)
- Kuzgun, Nermin Karaton(10)
- Topal, Murat(9)
- Aksu, Önder(8)
- Can, Erkan(8)
- Cevik, Mutlu(8)
- Kayim, Murathan(8)
- Dikici, Abdullah(7)
- Karakavuk, Emrah(7)
- Kizak, Volkan(7)
- Kocabas, Mehmet(7)
- Macit, Arife(7)
- Ozturk, Burhan(7)
- Öbek, Erdal(7)
- Erişir, Mine(6)
- Ertekin, Özlem(6)
- Gundogdu, Muttalip(6)
- Ince, Muharrem(6)
- Omac, Basri(6)
- Sabancı, Serdal(6)
- Yaman, Mehmet(6)
- Aydın, Sevinç(5)
- Erguven, Gokhan Onder(5)
- Erisir, Mine(5)
- Erol, Nida Demirtas(5)
- Goksu, Ali(5)
- Kizil, Mevlude(5)
- Kutluyer Kocabaş, Filiz(5)
- Serdar, Osman(5)
- Yilmaz, Ökkeş(5)
- Çimen, Murat(5)
- Şeker, Engin(5)
- Altınterim, Başar(4)
Yayınlar
- MakaleAçık Erişim2019Pendimethalin stresine maruz kalan aspir (Carthamus tinctorius L.)’de oluşan bazı biyokimyasal değişiklikler
Beker Akbulut, Gülçin
Pendimethalin herbisiti tarımsal uygulamalarda yabancı otların kontrolü için yaygın olarak kullanılmaktadır. Bununla birlikte, pendimethalinin kültür bitkileri üzerindeki yan etkisi tam olarak bilinmemektedir. Bu çalışmada, aspir (Carthamus tinctorius L.) bitkisine ait Dinçer ve Remzibey çeşitlerinde pendimethalin kaynaklı oksidatif stres araştırıldı. Herbisit uygun büyüklüğe (21 günlük) gelen bitkilerin yapraklarına toksisite denemeleri sonrasında belirlenen dozlarda (0.004-0.01 M) çimlenme sonrası olarak uygulandı. Uygulama gruplarında karotenoid, toplam klorofil, toplam karbohidrat, toplam fenolik ve lipid peroksidasyonunu gösteren malondialdehid (MDA) içeriğindeki değişimler saptandı. Dinçer (% 42.7) ve Remzibey (% 59) çeşitlerinde karotenoid içeriği kontrole kıyasla azalış gösterdi. Toplam klorofil içeriği Remzibey çeşidinde (% 56.8) Dinçer’e (% 41.4) göre daha yüksek bulundu. Toplam karbohidrat içeriği Dinçer çeşidinde (% 50) Remzibey çeşidine (% 46.1) kıyasla daha yüksek saptandı. Toplam fenolik içeriği Remzibey (% 48.3) ve Dinçer (% 46.7) çeşitlerinde artan saatlere bağlı olarak azalış gösterdi. MDA içeriği Remzibey çeşidinde (% 72) Dinçer çeşidine (% 70) göre daha yüksek saptandı. Bu çalışma, pendimethalinin kültür bitkisi olan aspire toksik etki oluşturduğunu göstermiştir.
AtıfOpenAlex3TR Dizin3
İncele - MakaleYalnız künye2019Genetic Diversity Analysis of Aydın/Turkey Dittrichia viscosa (L). Greuter (Asteraceae) Populations Using RAPD Markers
Paksoy, Mehmet Yavuz; Sevindik, Emre; Uzun, Sefa
In this study, we performed a genetic diversity using RAPD markers for some Dittrichia viscosa populations grown in the Aydın region of Turkey. Total genomic DNA isolation from the leaves of Dittrichia viscosa was performed using commercial kit. eight RAPD primers were used to determine genetic diversity among populations. Polymerase Chain Reaction (PCR) was performed with all DNA samples and primers with ability of scoreing band. PCR products were run in agarose gel and visualized under UV light. They scored as there were bands (1) and no bands (0) at all gel images and their files were created. A total of 50 characters were obtained from the primers. Phylogenetic relationships and genetic distances between the cultivars were calculated by using the PAUP* 4.0b10 analysis program. According to the PAUP data, the closest genetic distance was determined 0.20000 and between Central and İncirliova populations, the most distant genetic distance were determined 0.36842 between İncirliova and Koçarlı populations. In the phylogenetic analysis has been obtained using UPGMA algorithms and phylogenetic tree consist of two clades. The results also propose that RAPD markers are useful tools for indicating genetic relationships among Dittrichia viscosa populations.
- MakaleAçık Erişim2019Assessment of Biomarkers of Oxidative Stress and Antioxidant in Wild and Farmed Çoruh trout (Salmo coruhensis) Spermatozoa
Benzer, Fulya; Erişir, Mine; Kocabaş, Mehmet; Kutluyer Kocabaş, Filiz
Behaviour and physiology in fish are affected from environmental factors. Particularly, habitat and culture environment in aquatic animals are essential for life stages. In this study, biomarkers of oxidative stress and antioxidant were compared in wild and farmed Çoruh trout (Salmo coruhensis) spermatozoa. In spermatozoa of Çoruh trout, lipid peroxidation (malondialdehyde), glutathione and enzymatic antioxidant activities (catalase, superoxide dismutase, glutathione peroxidase) were assessed. Our data demonstrated that superoxide dismutase (0.44±1.25 Umg-1 protein), catalase (15.21±4.69 k.g-1 protein), glutathione peroxidase (42.89±0.61 Ug-1 protein), glutathione (0.18±4.01 μmolg-1 cell) and malondialdehyde (2.49±0.12 nmol.g-1 cell) levels in wild fish were low compared to spermatozoa of farmed fish. Overall, alterations in malondialdehyde levels and the antioxidant status could be differences in habitat.
AtıfOpenAlex1İncele - MakaleAçık Erişim2019Comparing of Glutathione Levels of Some Bryaceae (Bryophyta) Species
Alataş, Mevlüt; Çöteli, Ebru; Batan, Nevzat; Hazer, Yasin
In this study, Reduced Glutathione (GSH) and Oxidized Glutathione (GSSG) levels of Bryum argenteum, Imbribryum mildeanum, Ptychostomum imbricatulum (I, II), Ptychostomum moravicum (I, II, III) and Ptychostomum capillare were determined with High-performance Liquid Chromatography (HPLC). GSH and GSSG levels of species were determined as Bryum argenteum 232.70 ± 13.40 µg/g ve 4,22 ± 1.20 µg/g; Imbribryum mildeanum 135.55 ± 6.66 µg/g ve 26.97 ± 2.50 µg/g; Ptychostomum imbricatulum (I) 107.44 ± 8.71 µg/g ve 153.05 ± 9.85 µg/g; Ptychostomum imbricatulum (II) 207.97 ± 13.58 µg/g ve 107.67 ± 4.55 µg/g; Ptychostomum moravicum (I) 172.89 ± 6.35 µg/g ve 12.53 ± 2.59 µg/g; Ptychostomum moravicum (II) 172.15 ± 6.62 µg/g ve 20.48 ± 2.54 µg/g; Ptychostomum moravicum (III) 176.84 ± 6.49 µg/g ve 28.86 ± 4.59 µg/g ve Ptychostomum capillare 234.38 ± 5.79 µg/g ve 6.58 ± 1.91 µg/g respectively. These results showed that these bryophyte species belonging to the Bryaceae family are very good sources of glutathione (GSH and GSSG). Due to their high glutathione content, it has been concluded that the family and species are antioxidant plants and can be used as raw material in various fields.
AtıfOpenAlex6TR Dizin2İncele - MakaleAçık Erişim2019Brown Swiss Irkı İnek Sütlerinde Mikrobiyolojik Kalite Parametrelerinin Türk ve AB Standartlarına Uygunluğunun Belirlenmesi
Ertekin, Özlem
Çalışmada, Brown Swiss ırkı ineklerden elde edilen sütlerin mikrobiyolojik kalite standartları ile elde edilen mikrobiyolojik parametreler (somatik hücre sayısı ve toplam bakteri sayısı) arasındaki farklar araştırılmıştır. Erzincan ilinde yetiştirilen 15 adet Brown Swiss ırkı inek, hayvan materyali olarak kullanılmıştır. Erken laktasyon döneminin ilk ayının ikinci haftasında günlük süt örnekleri ineklerden toplanmıştır. Çalışmada, Brown Swiss ineklerin sütlerindeki mikrobiyolojik parametreler ile Avrupa Birliği ve Türk kalite standartları arasındaki farklar belirlenmiştir. İneklerin sütlerinde somatik hücre sayısı (SHS) ve toplam bakteri (TB) seviyeleri, Avrupa Birliği için bildirilen kalite standartları (en fazla 400,000 hücre/mL SCC, en fazla 100,000 adet/mL TB) ve Türk Standartları (en fazla 500,000 hücre/mL SCC; en fazla 100,000 adet/mL TB) ile tek örnek t testi kullanılarak karşılaştırılmıştır. Erzincan ilinde yetiştirilen Brown Swiss ırkı ineklerden elde edilen SHS (46,570 hücre/mL) ve TB seviyeleri (48,066 adet/mL) AB ve Türk kalite standartlarına göre arzu edilen düzeylerdir. SHS ve TB sayısı süt ürünlerinin üretimi için önemlidir. Çünkü belirtilen mikrobiyolojik parametreler süt kalitesini ve arzu edilen lezzeti değiştirebilir. Çalışma sonuçlarına göre, Erzincan ilinde yetiştirilen Brown Swiss ırkı ineklerden toplanan sütteki SHS ve TB sayıları, Avrupa Birliği ve Türk kalite standartları için uygun bulunmuştur.
- MakaleAçık Erişim2019Gölova Baraj Gölü (Sivas)’nde Yaşayan Pullu Sazan (Cyprinus carpio Linnaeus, 1758)’ın Bazı Büyüme Özellikleri ve Et Veriminin İncelenmesi
Yüngül, Mücahit; Gokhan, Haci Bayram; Dörücü, Mustafa
Bu çalışmada, Temmuz 2017 - Mart 2018 tarihleri arasında Gölova Baraj Gölü’nden yakalanan 82 adet pullu sazan (Cyprinus carpio Linnaeus, 1758)’ın cinsiyet ve yaş gruplarına göre bazı büyüme özellikleri ile et verimliliği araştırılmıştır. Örneklerin % 32.93’ünü dişi, % 67.07’sini erkek bireyler oluşturmuştur. Dişi ve erkek bireyler II-V arası yaşlarda tespit edilmiştir. Ortalama total boy ve ağırlığın dişilerde 40.99±1.07 cm ve 1001.27±82.97 g; erkeklerde 37.27±0.41 cm ve 734.34±30.69 g; tüm bireylerde 38.49±0.49 cm ve 822.23±36.65 g olduğu saptanmıştır. Tüm örnekler için boy-ağırlık ilişkisi W=0.0151TL2.9743 (R2=0.8796) ve ortalama kondisyon faktörü 1.385±0.018 olarak belirlenmiştir. C. carpio’da et verimliliği ile çeşitli vücut kısımları arasındaki ilişkiler incelendiğinde; fileto ve karkas ağırlıklarının ortalama et verimleri sırasıyla dişilerde % 47.59±0.71 ve % 59.19±0.82; erkeklerde % 49.80±0.32 ve % 60.67±0.34; tüm bireylerde % 49.07±0.34 ve % 60.18±0.36 olarak saptanmıştır. Tüketilmeyen vücut kısımlarından iç organ, baş, yüzgeç, deri ve kemik ağırlıklarının vücut ağırlığına göre ortalama oranları da tüm bireyler için sırasıyla % 12.98±0.39, % 22.32±0.23, % 4.51±0.79, % 8.49±0.25 ve % 2.63±0.04 olarak belirlenmiştir.
AtıfOpenAlex2TR Dizin2İncele - MakaleAçık Erişim2019Isparta’da Yetişen Bazı Elma Çeşitlerinin Meyve Eti, Kabuk ve Çekirdek Yuvasındaki Antioksidan Kapasitesinin Belirlenmesi
Çimen, Murat; Benzer, Fulya; Yıldırım, Mahsum; Barış, Dilan; Yıldırım, Hüseyin; Karaca Sanyürek, Nesrin; Karakavuk, Emrah
Bu çalışmada Isparta ili Eğirdir ilçesinden temin edilen beş farklı elma çeşidinde meyve eti, kabuk ve çekirdek yuvasındaki antioksidan kapasiteleri ABTS, DPPH ve TFM yöntemleri kullanılarak belirlenmiştir. Analiz sonuçları incelendiğinde çeşitler, alınan kısımlar ve yöntemler bakımından antioksidan seviyelerinin farklılık gösterdiği görülmüştür. En yüksek antioksidan aktivite ‘Granny Smith’ çeşidinde bulunmuştur. En düşük antioksidan aktivite ise ‘Pink Lady’ çeşidinde tespit edilmiştir. Meyve eti, kabuk ve çekirdek yuvasındaki antioksidan miktarları sırasıyla %29.93, %21.95, %27.22 olarak tespit edilirken, TFM metodu ile yapılan analizlerde antioksidan miktarı ABTS ve DPPH metotlarına göre daha yüksek bulunmuştur.
AtıfOpenAlex6TR Dizin4İncele - MakaleAçık Erişim2019Investigation of the Bioremediation of Herbicide Metribuzin with Bacillus subtilis Bacteria at Artifical Agricultural Field
Erguven, Gokhan Onder
The bioremoval of metribuzin (C8H14N4OS) which is one of the selective herbicide in tomato farming in Turkey was investigated with Bacillus subtilis bacteria under agitated culture conditions and artifical agricultural field. The bacterium was isolated in collected soil samples from one of the agricultural area in Elazig province of Turkey. The area is unexposed to metribuzin before. Five apparatuses were set up and 100 mL of metribuzin in 1750 ppm concentration (advised concentration of tomato farmers) was added to each Erlenmayer flasks. 5, 10, 20, 50 and 100 mL of enriched Bacillus subtilis solutions (in sabouraud dextrose broth) added to these flasks. Each mL of the enriched solutions contains ×107 Colony forming unit (CFU). These flasks were shaken at 160 rpm at 28 0C in sterile conditions for 17 days. In 24 hours intervals, each sample was collected to flasks and chemical oxygen demand (COD) was determined with DR/890 colorimeter by the line of closed reflux method while Biochemical oxygen demand (BOD5)experiments were performed via standard methods 5210D with oxitops. As a result of the study, best removal performance observed in 100 mL Bacillus subtilis as 98% at 17 days in COD. In a soil study, 100 mL mixture of Bacillus subtilis consortia used for bioremediation studies. According to the results of artifical agricultural field study, the bioremediation seen at COD and BOD5 parameters are 99.4% and 96% respectively at the end of 2. week. This experiments have focused that, Bacillus subtilis should be a selective type for bioremediation of metribuzin on receiving environments.
AtıfOpenAlex2TR Dizin2İncele - MakaleAçık Erişim2019Effect of Macerated Tomato (Lycopersicon esculentum) and Carrot (Daucus carota) Oils on Hematological Parameters of Rainbow Trout (Oncorhynchus mykiss) at High Stocking Density
Aksu, Önder; Altınterim, Başar
In this study, 2% of macerated tomato (Lycopersicon esculentum) and carrot (Daucus carota) oils were added to the feeds of rainbow trout with an average weight of 35.88 ± 1.97 g. The experiment was continued for 21 days and the samples were also measured for changes in the hematological parameters. Statistically, significant differences were found in LYM, RBC, HGB, HCT, MCH and NBT values (p<0.05). There was no statistically significant difference other blood parameters levels (p>0.05). It was determined that both macerated carrot and macerated tomato oils stimulated to the non-specific immune system and erythropoiesis at high stocking density. Especially, it was occurred that macerated carrot oil (MCO) more effective than macerated tomato oil (MTO).
AtıfOpenAlex3TR Dizin1İncele - MakaleAçık Erişim2019Assessment of vitamin compositions and cholesterol levels of carp (Cyprinus carpio carpio) and rainbow trout (Oncorhynchus mykiss) caviars
Emir Çoban, Özlem; Ökkeş; Yılmaz, Okkes; Yilmaz; Emine; İnanlı, Ayşe Gürel; Kuzgun, Nermin Karaton
In this study, roes obtained from carp (Cyprinus carpio carpio) that were caught from Keban Dam Lake (Elazığ) and the culturedrainbow trout (Oncorhynchus mykiss) were processed as caviar and compositions of proximate and vitamins, cholesterol levels were determinedin the products. In the research, roes obtained from mature fish were processed under aseptic conditions by suitable procedures for differentfish species. The obtained caviars were weighed as 75 grams and filled in 200 ml capped glass jar and stored in +4 ºC for 28 days.As a resultof the analysis in the study, the amount of dry matter was determined to be 35.94% in roes obtained from rainbow trout and 31.28% in roesobtained from carp. The average protein content in raw roe obtained from rainbow trout was determined to be 24.32%, it was determined tobe 18.25 % in carp. In this study, the fat content in roes obtained from rainbow trout was determined to be 9.14%, but it did not show muchchange during processing and it was determined to be 8.84% in the end product. During the production and storage of the caviar producedfrom rainbow trout and carp, the fat-soluble vitamin composition and cholesterol levels were determined. During the study, it was found thatthe amounts of vitamin A between rainbow trout and carp caviars were significantly different (p <0.001). Vitamins D and K were not detectedin the caviar samples. As a result of analyzes, cholesterol levels were determined 73.76 mg/100 g in rainbow trout roe and 10.82 mg/100 g incarp roe and it was observed that these values were not changed significantly during the processing and storage periods (on 0th, 7th, 14th, 21stand 28th days ).
AtıfOpenAlex7TR Dizin1İncele - MakaleAçık Erişim2019Phylogenetic Analysis of Chrysochamela (Fenzl) Boiss. (Brassicaceae) Taxa Growing in Turkey
Paksoy, Mehmet Yavuz; Sevindik, Emre; Topseçer, Feyzanur; Aydoğan, Melike
In this study, we performed a genetic diversity analysis using RAPD (Random AmplifiedPolymorphic DNA) and ISSR (Inter simple sequence repeat) markers for some Chrysochamelaspecies growing in Turkey. PCR was performed using RAPD and ISSR primers and genomic DNAsamples from each specimen, and the resulting bands were scored. Phylogenetic relationships andgenetic distances between the studied taxa were calculated using the PAUP analysis program.According to the RAPD analysis, the closest genetic distance was found to be 0.20000 between C.noeana populations, while the most distant values were found as 0.60000 between C. noeana and C.elliptica. The ISSR analysis also revealed the closest genetic distance as 0.34043 between C. noeanapopulations, while the most distant values were found to be 0.55319 between C. noeana and C.elliptica. UPGMA (unweighted pair group method with arithmetic mean) dendrogram generated forboth RAPD and ISSR analyses consisted of two groups. As a result, it was found that RAPD datawere more appropriate for comparison with the previous anatomical and morphological data of the studied taxa.
AtıfOpenAlex1TR Dizin1İncele - MakaleAçık Erişim2019Masere sarımsak (Allium sativum Limne) ve Tunceli sarımsağı (Allium tuncelianum Kollman) yağlarının yoğun stoklanmış gökkuşağı alabalıklarının (Oncorhynchus mykiss W.) bazı kan parametrelerine ve NBT (Nitroblue Tetrazolium) seviyelerine etkileri
Aksu, Önder; Altınterim, Başar
Bu çalışmada, % 2 oranında masere sarımsak (Allium sativum L.) ve Tunceli sarımsağı(Allium tuncelianum Koll.) yağları, ortalama ağırlıkları: 39.0 ± 1.64 gr. olan gökkuşağıalabalıklarının yemlerine ilave edilmiştir. Çalışmanın sonunda, gökkuşağıalabalıklarının kan parametreleri ve NBT (Nitroblue Tetrazolium) seviyeleri tespitedilmiştir. Sarımsak uygulaması yapılan gruplarda, MCH, P-LCR, PCT, PLT ve MPVparametrelerinde kontrol ve stres gruplarına göre istatistiksel olarak farklılıkbulunmuştur (P<0.05). WBC, LYM, MID, RBC, HGB, HCT, MCV, MCHC, RDW-SD,RDW-CV ve PDW, değerleri arasında bir farklılık görülmemiştir (P> 0.05). Sarımsakuygulamaları sonucu NBT seviyeleri önemli derecede azalma göstermiştir (P<0.05). Budurum sarımsağın hücrelerdeki oksidatif stresi azalttığını göstermektedir.
AtıfOpenAlex8TR Dizin5İncele - MakaleYalnız künye2019Scopus SJRQ1Quality characteristics of pomegranate juice concentrates produced by ohmic heating assisted vacuum evaporation
Sabanci, Serdal; Cevik, Mutlu; Cokgezme, Omer F.; Yildiz, Hasan; Icier, Filiz
AtıfOpenAlex48
İncele - MakaleAçık Erişim2019Scopus SJRQ4MICROMORPHOLOGICAL AND ANATOMICAL INVESTIGATION ON SIX SPECIES OF ONOSMA L. (BORAGINACEAE) FROM TURKEY
Selvi, Selami; Polat, Ridvan; Babacan, Ebru Yuce; Rahman, M. Oliur; Çakilcioglu, Ugur
Micromorphology and anatomy of six Onosma L. species, viz. O. argentata Hub.Mor., O. neglecta Riedl, O. proballanthera Rech. f, O. rechingeri Riedl, O. sericea Willd. and O. stenoloba Hausskn. ex Riedl from Turky were investigated. Stem anatomy revealed that cuticle layer ranged from 0.6 mu m in O. argentata to 1.7 mu m in O. proballanthera. Parenchymatous cells of O. neglecta and O. stenoloba possessed more intense starch than the other species studied. In leaf anatomy, the longest palisade parenchyma was found in O. neglecta, while the smallest was noted in O. argentata. Mesophyll structure of O. argentata, O. sericea and O. rechingeri was equifacial (isobilateral), while O. neglecta, O. proballanthera and O. stenoloba presented bifacial (dorsiventral) structure. Rugose nutlet ornamentation was observed in O. argentata, O. neglecta and O. sericea, whereas reticulate type was found in O. proballanthera, O. rechingeri and O. stenoloba. Onosma stenoloba could easily be distinguished from other species by its aesterotrichous indumentum, and in contrary, other species possessed haplotrichous type of indumentum. Micromorphological features of nutlet surface, anatomical features of epidermal surface (trichomes and stomata), and lamina mesophyll structure (dorsiventral and isobilateral) could be useful in solving taxonomic problem of the genus.
AtıfWoS7OpenAlex12İncele - MakaleYalnız künye2019Scopus SJRQ2Effects of Vacuum Ohmic Evaporation on Some Quality Properties of Sour Cherry Juice Concentrates
Sabancı, Serdal; Icier, Filiz
Sour cherry juice (SJ) having total soluble solid (TSS) content of 19.2 % was concentrated to 65 % TSS by applying vacuum ohmic evaporation (VOE) and vacuum evaporation (VE) methods under constant absolute pressure (25 kPa). Total monomeric anthocyanin content (TMAC) of sour cherry concentrate (65 % TSS) was found in the range of 1561.67–1777.38 mg/L whereas total phenolic content (TPC) varied in the range of 9,071.22–78,347.53 mg/L concentrate. TPC and TMAC values of juice concentrates were affected less from VOE process compared to VE (p < 0.05) while there was no significant difference between the total antioxidant activities of SJ concentrates obtained by both methods (p > 0.05). TMAC and TPC values increased as the voltage gradient applied increased (p < 0.05). VOE process preserved the color properties of juice concentrates better compared to the VE process. It was concluded that VOE method could be an alternative fast evaporation method to obtain high-quality fruit juice concentrates.
AtıfScopus35WoS31OpenAlex34
İncele - MakaleAçık Erişim2019Scopus SJRQ2Ultrasound as pretreatment for drying garlic slices in microwave and convective dryer
Bozkir, Hamza; Rayman Ergün, Ahsen; Tekgül, Yeliz; Baysal, Taner
The effects of ultrasound pretreatment (US) before hot air drying (HAD) and microwave drying (MWD) of garlic slices were investigated. For this aim ultrasonic bath at 30 °C for 30 min (35 kHz), microwave oven at 540 W power and tray dryer at 60 °C and with 1.0 m/s air flow rate were used to reach the final moisture content of 5%. Drying rate increased in the US + HAD and the US + MWD groups by 19.30% and 13.82% respectively in comparison with control groups. The effective moisture diffusivity (D eff ) of garlic slices were calculated from Fick’s diffusion model for the HAD, US + HAD, MWD and the US + MWD groups as 1.420 × 10 −10 , 1.826 × 10 −10 , 1.177 × 10 −8 , 1.363 × 10 −8 m 2 /s respectively. The rehydration rates increased, and bulk densities were decreased in the US + HAD and the US + MWD compared to the control groups. The color values were significantly affected after ultrasound pretreatment. Redness, and yellowness increased most in the US + HAD group.
AtıfScopus53WoS47OpenAlex58İncele - MakaleAçık Erişim2019Scopus SJRQ2Improvement of sperm motility of Oncorhynchus mykiss and Salvelinus fontinalis by L-tryptophan
Kocabaş, Mehmet; Kutluyer, Filiz; Ertekin, Özlem; Aksu, Önder; Başçınar, Nadir
Experiments were designed to test the influence of L-tryptophan supplementation of the extender on the sperm motility parameters and bacterial flora of brook trout (Salvelinus fontinalis) and rainbow trout (Oncorhynchus mykiss). The extender containing 0.3 M glucose in 10% Dimethyl sulfoxide (DMSO) was supplemented with 0, 0.5, 1, 2, and 4 mM L-tryptophan. Sperm samples stored for up to 12 days at 4°C for brook trout were motile while motility was not observed after six days of storage for rainbow trout. Diluted sperm samples were spread-plated onto Plate Count Agar (PCA) (Total Bacteria Count), Rose Bengal Agar (RBC) (Yeast-Mold Count), Violet Red Bile Dextrose (VRBD) (Enterobacteriaceae count) and Mannitol Salt Agar (MSA) (Micrococcus/Staphylococcus count) and counts were performed in duplicate and sampling occurred on day 0, 2, 4, 6, and 12 of cold storage. L-tryptophan supplementation of the extender yielded a positive effect, significantly prolonging sperm motility in S. fontinalis and O. mykiss compared to the control group (p < 0.05). The ideal results were obtained above a concentration of 0.5 mM for both species. Total bacteria count in fresh sperm (undiluted samples) was not detectable and not detected in sperm samples treated with different L-tryptophan concentrations. Yeast-mold, Enterobacteriaceae and Micrococcus/Staphylococcus were not detected from fresh and treated sperm brook trout and rainbow trout. On the basis of the results, L-tryptophan-based extender is useful for maintaining sperm quality in short-term storage. L-tryptophan had a negative effect on the bacterial flora. The results of the current study encourages further studies related to long-term storage and reproduction management. Abbreviations: DMSO: dimethyl sulfoxide; PCA: plate count agar; RBC: rose Bengal agar; VRBD: violet red bile dextrose; MSA: mannitol salt agar; SCA: sperm class analyzer; CFU: colony-forming unit.
AtıfScopus13WoS14OpenAlex13İncele - MakaleAçık Erişim2019Scopus SJRQ1Influence of ultrasound and osmotic dehydration pretreatments on drying and quality properties of persimmon fruit
Bozkir, Hamza; Rayman Ergün, Ahsen; Serdar, Emine; Metin, Gülhan; Baysal, Taner
In this study, the effect of the ultrasound and osmotic dehydration pretreatments before the convective drying of the persimmon fruit was assessed via their drying behavior and quality properties. Ultrasound-assisted osmotic dehydration (30 °C, 45 °Brix) was performed at 35 kHz for 10, 20, and 30 min. Afterward, samples were placed first in 45 then in 70 °Brix sucrose solutions; the solutions were next shaken at 100 rpm. The control group without ultrasound treatment dehydrated osmotically. The samples were dried in a tray drier at a temperature of 60 °C and an air velocity of 1.5 m/s. Ultrasound-assisted osmotic drying treatments increased water loss and sugar gain; moreover, the osmotic dehydration time was shorter than in the untreated group. The ultrasound-assisted osmotic dehydration demonstrated a significantly decreased drying time, increased drying rates, and a 21% increase in effective water diffusivity by 30 min. The ultrasound pretreated osmotic dehydration prior to hot air-drying decreased the total required drying time. The ultrasound-assisted osmotic dehydration affected the rehydration rate and total phenolic content significantly and there was no significant difference between the color change (ΔE, ΔC, and Hue°) of the ultrasound treatment (30 min) group and the untreated group.
AtıfScopus181WoS148OpenAlex178İncele - MakaleAçık Erişim2019Scopus SJRQ3Effect of the organophosphate insecticide chlorpyrifos exposure on oxidative stress and quality of Salmo coruhensis spermatozoa
Kutluyer, Filiz; Kocabaş, Mehmet; Erişir, Mine; Benzer, Fulya
The use of pesticides has been increasing along with increasing farming activities and has caused deleterious environmental impacts. Non-target organisms in particular, including fish, are affected by pesticides. In this work, the impacts of Chlorpyrifos (CPF) on sperm oxidative stress markers and sperm motility were investigated in vitro. CPF concentrations were 0 μg/L (control), 5 μg/L, 10 μg/L and 15 μg/L. Lipid peroxidation [malondialdehyde (MDA)], nonenzymatic antioxidants [glutathione (GSH)] and enzymatic [superoxide dismutase (SOD), glutathione peroxidase (GSH-Px) and catalase (CAT)] activities in sperm cells were examined for the determination of oxidative stress status. Our findings showed that motility and survival of sperm cells significantly decreased with exposure to Chlorpyrifos. Biochemical assays revealed that CAT activity and levels of MDA and, GSH increased in spermatozoa based on CPF concentration while activity of GSH-Px and SOD decreased. Consequently, spermatozoa were highly sensitive to CPF exposure. It can be deduced that CPF has the potential to disrupt sperm quality and to cause to oxidative stress in sperm cells of S. coruhensis.
AtıfScopus15WoS14OpenAlex13İncele - MakaleYalnız künye2019Scopus SJRQ1Lactose hydrolysis and protein fortification pose an increased risk for the formation of Maillard reaction products in UHT treated milk products
Aktağ, Işıl Gürsul; Hamzalıoğlu, Aytül; Gökmen, Vural
This study aimed to survey the content of Maillard reaction products in different UHT-treated milk products and to assess how formation of these products and lysine blockage is affected by the composition. For this purpose, different commercial UHT milks including milk (whole, semi-skimmed and skimmed), lactose-hydrolyzed, protein-fortified, lactose-hydrolyzed protein fortified and follow-on infant milks were analyzed. Among the Maillard reaction products, dicarbonyl compounds, 5-hydroxymethylfurfural, furosine, N-ε-carboxymethyllysine and N-ε-carboxyethyllysine were monitored. The results showed that fortification of UHT milks with protein and carbohydrates as well as hydrolysis of lactose promoted the Maillard reaction. Among the dicarbonyl compounds, 3-deoxyglucosone formation, which was the dominant dicarbonyl compound in milks, varied between 3.12–12.67 mg/L, 13.45–21.98 mg/L and 4.59–40.38 mg/L in lactose hydrolyzed, lactose-hydrolyzed protein-fortified and follow-on infant milks whereas it was 0.22-0.40 mg/L in milks, respectively. Similarly, 5-hydroxymethylfurfural could not be detected in milks, whereas mean 5-hydroxymethylfurfural concentration was found to be 56.3 mg/L and 31.5 mg/L in protein-fortified milks and lactose-hydrolyzed protein-fortified milks, respectively. Accordingly, % blocked lysine, furosine, N-ε-carboxymethyllysine and N-ε-carboxyethyllysine content of different UHT milks were found to be significantly higher than milks (p < 0.05). This is the first study reporting the Maillard reaction products in protein-fortified and infant milks.
AtıfScopus55WoS51OpenAlex54İncele
