Grasas y Aceites, Vol 49, No 2 (1998)

Intake and body weight gain of rats fed different types of unused and used frying oils


https://doi.org/10.3989/gya.1998.v49.i2.718

A. M. Pérez-Granados
Instituto de Nutrición y Bromatología (CSIC). Facultad de Farmacia, Universidad Complutense., Spain

M. P. Vaquero
Instituto de Nutrición y Bromatología (CSIC). Facultad de Farmacia, Universidad Complutense., Spain

M. P. Navarro
Instituto de Nutrición y Bromatología (CSIC). Facultad de Farmacia, Universidad Complutense., Spain

Abstract


Olive oil, sunflower oil and palm olein, unused or used in repeated potato frying until the oils reached the limit of 25% of polar compounds (PC) were used. Wistar rats were fed over 28 days diets containing 8% of: olive oil, olive oil from 48 fryings, olive oil from 69 fryings (25% PC), sunflower oil, sunflower oil from 48 fryings (25% PC), palm olein and palm olein from 80 fryings (25% PC) Body weight and food intake were monitored weekly and food efficiency was calculated. At the end of the experiment the animals were sacrificed to separate the liver and calculate the hepatosomatic index. The consumption of frying oils did not modify food Intake, body weight food efficiency nor liver weight but hepatosomatic index was higher in rats consuming frying palm olein compared to unused palm olein.

Keywords


Frying; Growth; Olive oil; Palm olein; Sunflower oil

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