Lipid classes and fatty acid compositions of wild and cultured sweet smeltPlecoglossus altivelis muscles and eggs in Korea

Citation
By. Jeong et al., Lipid classes and fatty acid compositions of wild and cultured sweet smeltPlecoglossus altivelis muscles and eggs in Korea, FISHERIES S, 66(4), 2000, pp. 716-724
Citations number
24
Categorie Soggetti
Aquatic Sciences
Journal title
FISHERIES SCIENCE
ISSN journal
09199268 → ACNP
Volume
66
Issue
4
Year of publication
2000
Pages
716 - 724
Database
ISI
SICI code
0919-9268(200008)66:4<716:LCAFAC>2.0.ZU;2-N
Abstract
Lipid classes and fatty acid compositions of the muscles and eggs of wild a nd cultured sweet smelt in Korea from different habitats and fish culture f arms were compared. Non-polar lipid (NL) content was in proportion to total lipid (TL) content and higher in the cultured fish muscles and eggs than i n the wild fish. Phospholipid (PL) content showed almost no difference betw een the wild and cultured fish muscles. The fish eggs contained approximate ly three times as much PL as the fish muscles. The prominent NL classes of the fish muscles were triglyceride (TG) and free sterol (ST), and additiona lly, sterol ester (SE) was one of the prominent NL classes in the fish eggs . Each of the cultured fish muscles or eggs had proportions higher in TG an d lower in ST compared with those of wild fish, respectively. These NL clas s proportions in fish muscles showed almost no difference in association wi th their wild habitats, fish culture farms as well as sex, while those in t he fish eggs differed significantly. The PL class proportions of the fish m uscles were similar in all samples, except those of the fish cultured in Mi ryang City. The wild fish muscles were rich in 16:1n-7, 18:3n-3 and 20:5n-3 , whereas the fatty acid proportions showed almost no differences between f ish habitats. The cultured fish muscles were rich in 18:1n-9, 18:2n-6, and 22:6n-3, in which the fatty acid proportions showed significant difference between fish farms due to different diets.