The effects of extraction methods on the contents of fatty acids, especially EPA and DHA in marine lipids.
Int J Food Sci Nutr
; 63(3): 326-31, 2012 May.
Article
en En
| MEDLINE
| ID: mdl-22010951
ABSTRACT
This study aims to evaluate the efficiency of trans-methylation methods in fish oil obtained using Soxhlet extraction method and Bligh and Dyer method and also to observe the effects of extraction methods on the contents of polyunsaturated fatty acids [PUFAs, especially eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA)] in five marine species sardine (Sardinella aurita), anchovy (Engraulis encrasicolus), sea bream (Sparus aurata), brushtooth lizardfish (Saurida undosquamis) and chub mackerel (Scomber japonicus). The results showed that Bligh and Dyer extraction method was more efficient in extracting polar and non-polar lipids than Soxhlet method and also prevented losses of PUFAs by a reduction in the oxidation. The level of EPA showed fluctuations for the two extraction methods. However, Soxhlet method showed significant decrease (p < 0.05) in the level of DHA for all fish species. The use of n-heptane proves to be superior for the recovery of unsaturated fatty acids, especially EPA and DHA.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Ácido Eicosapentaenoico
/
Ácidos Docosahexaenoicos
/
Lípidos
/
Biología Marina
Idioma:
En
Revista:
Int J Food Sci Nutr
Asunto de la revista:
CIENCIAS DA NUTRICAO
Año:
2012
Tipo del documento:
Article
País de afiliación:
Turquía