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Plant starches and oils. Their influence on digestion in rats
Author(s) -
Pacheco Delahaye Emperatriz,
Sequera Belkis,
Herrera Irma
Publication year - 1998
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/(sici)1097-0010(199807)77:3<381::aid-jsfa54>3.0.co;2-7
Subject(s) - starch , food science , chemistry , digestion (alchemy) , palm oil , cholesterol , biochemistry , chromatography
The purpose of the present study was to determine the interaction effect of starch and fat of such products over blood parameters (cholesterol, triglycerides), and to evaluate starch and fat digestibility. Experiments were carried out in eight groups of Sprague‐Dawley rats that were under the following diets: four of the groups were fed with a mix of 14% palm oil and 58% of each one of the starches (rice, corn, manioc and green plantain); the other four groups were fed a mix of 14% of corn oil and 58% of each one of the same starches under study. No significant differences were found in liver weight or fat digestibility among the groups of study. Significant differences were found on the starches digestibility, the green plantain starch being the one with the lowest digestibility (83–97%). The statistical differences showed an interaction between the starch and oil that affects the starch present in faeces and the starch digestibility. The evaluation of the blood parameters (cholesterol and triglycerides) showed significant differences when different starches were fed, but no so, when oils were changed. Animals that were fed manioc starch showed a higher concentration of cholesterol and triglycerides (244–150 mg dl −1 ), while animals that ingested green plantain starch showed the lowest concentration (93–150 mg dl −1 ). Our results suggest that the levels of cholesterol in rats was probably influenced by the digestibility of the starches present on the diet. The statistical analysis showed a high interaction starch vs oil over plasmatic triglycerides concentration. The green plantain starch has the same effect as some of the resistant starches. © 1998 SCI.