Effect of Cold-Smoking on The Production of Polycyclic Aromatic Hydrocarbons (PAHs), QualityIndexes, Microbal Community and Omega-3 Fatty acid Profile of Common Carp Cyprinuscarpio

The effect of cold-smoking was studied on the production of polycyclic aromatic hydrocarbons (PAHs), quality indexes, microbial community and omega-3 fatty acid profile of common carp. Thus, the fresh fish was smoked and stored for 30 days at 4°C. The nutritional values of both fresh and smoked products (protein, lipid, moisture and ash), pH and TVB-N indexes, microbial count including TC, molds and yeasts, were determined and polycyclic aromatic hydrocarbons PAHs, carcinogenic PAH4 compounds and also fatty acids composition were determined using HPLC and GC, respectively. The results showed that microbial community was well controlled and moisture content decreased during smoking, thus protein and lipid content were increased (P0.05).The results also showed that cold-smoking and one month storing at 4°C didnt change the composition of carp fatty acid, and useful series such as ω-3, ω-6, EPA and DHA were well preserved.