1,721,097 research outputs found
Influenza del 17B-estradiolo e del progesterone su strips miometriali di agnelle impuberi: modello sperimentale
No full textInfluence of 17β-estradiol and progesterone on myometrial strips of immature lambs: Experimental
No full textSelected polycyclic aromatic hydrocarbons in smoked tuna, swordfish and Atlantic salmon fillets
No full textThe presence of polycyclic aromatic hydrocarbons (PAHs) in commercial smoked fillets of tuna, swordfishand Atlantic salmon was studied. In Europe, the smoking technique is widely used in fish processing andthese species are the most representative of the taste of consumers for smoked products. Samples werepurchased on the Italian market and analysed by HPLC. Mean concentrations (ng g)1) of acenaphthene (4.4,6.2, 11.2), phenanthrene (11.5, 18.5, 8.9), anthracene (2.4, 5.2, 1.8), fluoranthene (17.0, 9.4, 4.7),benzo(k)fluoranthene (0.3, 0.1, 0.2) and benzo(a)pyrene (1.3, 0.1, 0.4) were found in Atlantic salmon, tunaand swordfish respectively. Benzo(b)fluoranthene (1.2 ng g)1) was detected only in Atlantic salmon whereasdibenz(a,h)anthracene was never detected in this species, but only in tuna (0.5 ng g)1) and swordfish(1.1 ng g)1). Atlantic salmon contained the highest level of benzo(a)pyrene (2.8 ng g)1) which is below theEuropean regulatory level of 5 ng g)1.[...
La risposta contrattile intestinale all’istamina nella trota iridea (Oncorhynchus mykiss Walbaum, 1792)
No full textPolycyclic aromatic hydrocarbons in farmed rainbow trout (Oncorhynchus mykiss) processed by traditional flue gas smoking and by liquid smoke flavourings.
No full textPolycyclic aromatic hydrocarbons (PAHs) were determined by high performance liquid chromatography (HPLC) method with fluorescence detection in rainbow trout fillets processed by traditional flue gas smoking and by liquid smoke flavourings, at low temperature (25 degrees C for 3h). Raw fillets were also investigated as control group. The following compounds, anthracene, fluoranthene, pyrene, benz(a)anthracene, chrysene, benzo(b)fluoranthene, benzo(k)fluoranthene and benzo(ghi)perylene were detected in all samples and no significant difference (p>0.05) was found neither between fresh and processed samples nor between the two different smoking techniques, except for chrysene and benzo(b)fluoranthene. The results show that PAHs found in rainbow trout fillets could be considered as a consequence of environmental pollution and the mild smoking process described in the present study did not affect their concentrations
Primi dati di un'indagine sui livelli di contaminazione da pesticidi organoclorurati in uccelli rapaci
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