Comparative chemical composition of different muscle zones in angler (Lophius piscatorius)

The chemical composition of different edible locations (central and edge muscles) of flat fish (Lepidorhombus whiffiagonis)

“…An inhomogeneous distribution of α‐tocopherol content in muscle has been observed in other wild fish, such as turbot ( Psetta maxima ) (Aubourg et al ., ) and Atlantic halibut ( Hippoglossus hippoglossus ) (Ruff et al ., ); in such experiments, higher α‐tocopherol values were reported in edible zones which had higher total lipid contents. However, no differences in α‐tocopherol content could be observed when considering muscle zones without marked lipid content differences as for angler ( Lophius piscatorius ; Prego et al ., ) and blackspot sea bream ( Pagellus bogaraveo , Álvarez et al ., ).…”

“…Indeed, previous cholesterol assessment in total megrim muscle led to a 18–23 mg/100 g muscle range (Afonso et al ., ), markedly higher than the level found in the current research for total sterols. Additionally, ST values obtained in the actual study can be considered low when compared with other wild flat (turbot, Psetta maxima ; Aubourg et al ., ), lean (angler, Lophius piscatorius ; Prego et al ., ) and marine species in general (Piclet, ). In the current research, both central and edge muscles showed higher values in the lower side of the fish; further, higher values were obtained in the edge zones than in their corresponding central muscle sites.…”

“…Regarding this difference, a higher protein content in dorsal muscle as compared with the ventral one was obtained in European sea bass ( Dicentrarchus labrax ) and gilthead sea bream ( Sparus aurata ) (Testi et al ., ). An inhomogeneous distribution of protein content was also reported for angler ( Lophius piscatorius ; Prego et al ., ); thus, the tail muscle showed a higher protein content as compared with the head muscle.…”

“…Other abundant fatty acids were as follows: C14:0, C16:0, C16:1ω7, C20:1ω9, C22:1ω11 and C20:5ω3. This fatty acid distribution agrees with the one obtained for wild lean (turbot, Psetta maxima , Aubourg et al ., ; angler, Lophius piscatorius , Prego et al ., ) and fatty ( Euthynnus affinis, Sarda orientakis and Elagatis bipinnulata , Saito et al ., ; bluefin tuna, Thunnus orientalis , Nakamura et al ., ) species as well as with other marine ones in general (Piclet, ). However, such distribution is markedly different from the one obtained for farmed blackspot sea bream ( Pagellus bogaraveo ; Álvarez et al ., ), in agreement with the high effect of diet on fatty acid composition.…”

“…Two groups of microelements were analysed. The first group incorporates 5 essential elements (Co, Cu, Mn, Se and Zn) which are present in all animal tissues (Johnson & Fischer, ; Prego et al ., ). The second group takes into consideration 8 elements (Ag, As, Cd, Cr, Hg, Ni, Pb and V) usually referred to as toxic and susceptible to reflect an exogenous harmful influence related to environmental pollution (Engman & Jorhem, ; Noël et al ., ).…”