title: [Fatty acids in different edible fish species from Mexico].
abstract: Different biotic and abiotic factors determine the fatty acid (FA) composition of fish tissues and organs. This information is useful for humans due to the fact that fish consumption is associated with health benefits. The aim of the present study was to identify the variation in the concentration of fatty acids, according to different factors, among ten edible marine fish species in Mexico, collected from June to December 2009 in the largest fish market in Mexico City: Euthynnus alletteratus, Sciaenops ocellatus, Bairdiella chrysoura, Sphyraena guachancho, Symphurus elongatus, Istiophorus platypterus, Ophichthus rex, Eugerres plumieri, Eucinostomus entomelas and Oreochromrnis mossambicus. Lipid content was gravimetrically quantified, the fatty acids were determined using a gas chromatograph and the results were statistically analyzed. Total lipid content ranged from 0.93 to 1.95 g/100 g in E. entomelas and O. urolepis hornorum, respectively. E. alletteratus, B. chrysoura, S. elongatus, I. platypterus, O. rex and E. plumieri presented the following order in FA concentration: Polyunsaturated FA (PUFA)>Saturated FA (SFA)>Monounsaturated FA (MUFA). S. ocellatus, S. guachancho and E. entomelas presented SFA>PUFA>MUFA; and only O. mossambicus presented SFA>MUFA>PUFA. O. mossambicus had the highest concentration (mg/100 g) of SFA (559.40) and MUFA (442.60), while B. chrysoura presented the highest content (mg/100 g) of PUFA (663.03), n-3 PUFA (514.03), EPA+DHA (506.10) and n-6 PUFA (145.80). Biotic and abiotic factors of the analyzed fish significantly influenced their FA concentration. Subtropical species presented 42.1% more EPA+DHA than tropical specie. Values presented here will vary according to the changes in the ecosystem and characteristics of each fish species, however the information generated in the present study is useful for improving fish consumption recommendations.
authors.affiliation: Departamento de Nutrición Animal, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Vasco de Quiroga N 15, Col. Sección XVI. Del. Tlalpan, C.P. 14000, DF Mexico. isacastro55@yahoo.com.mx
authors.forename: María Isabel
authors.initials: MI
authors.lastname: Castro González
authors.affiliation: Departamento de Nutrición Animal, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Vasco de Quiroga N 15, Col. Sección XVI. Del. Tlalpan, C.P. 14000, DF Mexico.
authors.forename: Ana Gabriela Maafs
authors.initials: AG
authors.lastname: Rodríguez
authors.affiliation: Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Vasco de Quiroga No15, Col. Sección XVI. Del. Tlalpan, C.P. 14000, DF Mexico.
authors.forename: Carlos
authors.initials: C
authors.lastname: Galindo Gómez
mesh_terms: D000818:Animals; D002845:Chromatography; D017753:Ecosystem; D005227:Fatty Acids / Q000032:analysis*; D005399:Fishes / Q000145:classification*; D008800:Mexico; D009753:Nutritive Value; D017747:Seafood / Q000032:analysis*; D013045:Species Specificity
chemical_list: D005227:Fatty Acids