Phytosterols, but not pectin, added to a high-saturated-fat diet modify saturated fatty acid excretion in relation to chain length.
J Nutr Biochem
; 18(9): 580-6, 2007 Sep.
Article
em En
| MEDLINE
| ID: mdl-17142034
ABSTRACT
The main objective of this article was to study how the excretion of saturated fatty acids (SFA) is modified after the consumption of a high-saturated-fat diet that was supplemented with phytosterol and pectin. We present the results of a longitudinal 4-week study on guinea pigs. Diets were supplemented with 0.33% of cholesterol and differed in the content of pectin (three levels) and of phytosterols (three levels). Seventy-two female Dunkin Hartley guinea pigs were randomly assigned to the treatment groups (8 animals/group). Addition of phytosterol resulted in a decrease of lauric (120) and myristic (140) excretions and in an increase of arachidic (200) and behenic (220) excretions. Palmitic (160) and stearic (180) acids did not show a clear change after phytosterol supplementation. Addition of pectin resulted in a decreased excretion of all SFA, although this was not significant. These results suggest that phytosterols added to a high-saturated-fat diet enhance the absorption of the most atherogenic fatty acids (lauric and myristic) after 1 week of treatment, as compared with the high-saturated-fat diet alone.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Fitosteróis
/
Gorduras na Dieta
/
Pectinas
/
Ácidos Graxos
Limite:
Animals
Idioma:
En
Revista:
J Nutr Biochem
Assunto da revista:
BIOQUIMICA
/
CIENCIAS DA NUTRICAO
Ano de publicação:
2007
Tipo de documento:
Article
País de afiliação:
Espanha