Dioxin analysis in pine honey from Turkey

The aim of the study is to determine concentrations of polychlorinated dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs), dioxin-like polychlorinated biphenyls (dl-PCBs) and indicator PCBs (ind-PCBs) in pine (honeydew) honey, which is endemic and popular in Turkey. Marchalina hellenica, which lives on Pinus brutia, is the main source of honeydew, and Apis mellifera L. collects the honeydew for making the pine honey. Pine honey is a very important bee product due to the export all over the world. In this study, honey samples were collected from Muğla and were researched via microscope. The quality of honey samples was determined by correlating NHE (Number of Honeydew Elements) to NTP (Number of Total Pollen) ratio and the honey, which has NHE to NTP ratio higher than 4.5 was accepted as a high density-superior quality pine honey. According to identifications, which have been made via microscope, pooled high quality pine honey sample was selected and analysed for dioxin. All the dioxin results were found lower than the European Union regulatory limits

Determination of histologic and genotoxic effects of sublethal dose of chlorpyrifos-ethyl on carp fingerlings (cyprinus carpio l., 1758)

Bu çalışmada sazan (Cyprinus carpio L.) fingerlingleri organofosforlu insektisitlerden chlorpyrifos-ethyl'in subletal konsantrasyonu 16 &#956;g/L'ye (96 saatlik LC50 değerinin 1/10'u) 24, 48, 96 saat ve 7 gün boyunca maruz bırakılmışlardır. Denemeler sonunda balıklardan elde edilen periferal eritrositlerde nükleus anomalileri ve mikronükleus farklı frekanslarda tespit edilmiştir. Nükleus anomalileri açısından chlorpyrifos-ethyl'e maruz kalan gruplar ile kontrol grupları arasındaki farklılıklar istatistiki yönden önemli bulunmazken (P>0,05), mikronükleus testi sonucunda chlorpyrifos-ethyl'e maruz kalan gruplar ile kontrol grubu arasındaki fark önemli bulunmuştur (P0.05) in terms of nuclear normalities, the differences between the control group and the groups exposed to chlorpyrifos-ethyl were found statistically significant in terms of micronucleus test (P<0.05); as a result the pesticide was determined as genotoxically effective. Cloudy swelling, hydropic degeneration, hyperemia in hepatopancreas tissues, and hyperemia, telangiactasis, hyperplasia, branchitis, oedema, chloride cell hyperplasia, fusion in gill tissues, and hemorrage, hyperemia in kidney tissues, vacuolisation in bowman capsule, melanization in kidney tissues and tubules, swollen glomerulus, hydrophic degeneration in tubules are the major histopathologic findings determined in carp fingerlings exposed to chlorpyrifos-ethyl. No histopathological findings were found in control groups. Longer exposure to chlorpyrifos-ethyl did not reveal of more histopathological findings, in more fish, and the severity of the findings. In conclusion it is determined that exposure to chlorpyrifos-ethyl even in sublethal concentration caused genotoxic effects and tissue damages in carp fingerlings

Seasonal variation and meat composition of bleak (Alburnus orontis, Sauvage 1882)

Bu araştırmada inci balığının (Alburnus orontis, Sauvage 1882) et kompozisyonu ve mevsimsel değişimleri incelenmiştir. Bu amaçla her mevsim 20 adet birey kullanılmıştır. İnci balığının canlı ağırlık ortalaması 21.004±8.072 g ve ortalama et verimi % 58.39±0.55 olarak belirlenmiştir. En yüksek ham protein değeri % 19.53±0.07 ile yazın, lipit % 6.67±0.04 ile kışın, kuru madde % 57.37±0.07 ile yazın, ham kül ise % 6.37±0.24 ile kışın belirlenmiştir.In this study, seasonal variation and meat composition of bleak (Alburnus orontis) were investigated. Twenty bleaks were used each season. The mean live weight and mean meat yield was determined as 21.004&plusmn;8.072 g and 58.39&plusmn;0.55 % respectively. The highest ratio of crude protein (19.53&plusmn;0.07 %) was in summer, lipid (6.67&plusmn;0.04) was highest in winter, dry matter (57.37&plusmn;0.07 %) was highest in summer and crude ash (6.37&plusmn;0.24 %) was highest in winter

Dioxin Analysis Of Bee Pollen Pellets Collected By Apis Mellifera L. In Rural Area Of Turkey

Bee pollen, an important bee product, is harvested as a food supplement for humans, so it must be safe in terms of toxic components for consumption. The aim of this study is to determine the amounts of polychlorinated dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs), dioxin-like polychlorinated biphenyls (dl-PCBs) and non dioxin-like PCBs (ndl-PCBs) in the bee pollen pellets of Apis mellifera L. collected from Cankiri, located in the central Anatolia region of Turkey, between June and July 2014. Six types of pollen belonging to four families: Centaurea triumfettii L. - Asteraceae family; Brassica spp. L. - Brassicaceae family; Cistus spp. L - Cistaceae family; Onobrychis spp. L., Hedysarum spp. I. and Trifolium spp. L. - Fabaceae family, were determined through microscopic analysis. Dioxin and PCB congeners were determined in a pooled bee pollen sample and all the results were found lower than the European Union regulatory limits for other foods. To the best of our knowledge, this is among the first studies on dioxin analysis in bee pollen worldwide.WoSScopu

Dioxin Analysis of Bee Pollen Pellets Collected by Apis mellifera L. in Rural Area of Turkey

Bee pollen, an important bee product, is harvested as a food supplement for humans, so it must be safe in terms of toxic components for consumption. The aim of this study is to determine the amounts of polychlorinated dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs), dioxin-like polychlorinated biphenyls (dl-PCBs) and non dioxin-like PCBs (ndl-PCBs) in the bee pollen pellets of Apis mellifera L. collected from Çankırı, located in the central Anatolia region of Turkey, between June and July 2014. Six types of pollen belonging to four families: Centaurea triumfettii L. - Asteraceae family; Brassica spp. L. - Brassicaceae family; Cistus spp. L. - Cistaceae family; Onobrychis spp. L., Hedysarum spp. L. and Trifolium spp. L. - Fabaceae family, were determined through microscopic analysis. Dioxin and PCB congeners were determined in a pooled bee pollen sample and all the results were found lower than the European Union regulatory limits for other foods. To the best of our knowledge, this is among the first studies on dioxin analysis in bee pollen worldwide