(1). Food Science and Technology Department, Faculty of Agriculture, Al-Azhar University. Assiut, Egypt.
(*Corresponding author: Dr. Eid Al Naggar E-Mail: firstname.lastname@example.org).
Received: 08/05/2017 Accepted: 08/08/2017
The present work aimed to study the effect of tiger nut oil on healthy and hypercholesterolemia rats, including feeding, growth parameters and biological analysis. Forty-eight male albino rats weighting 150 ±5 g were divided into eight homogenous groups, four groups (T1, T3, T5 and T7) were healthy. One of these groups was chosen as a negative control group (T1). The rats in negative control group fed on basal while the three remaining groups of rats, fed on basal diet with different levels of tiger nut oil (5, 10 and 15%) for 4 weeks. While the other four groups (T2, T4, T6 and T8) considered as hypercholesterolemia. One of these groups was chosen as a positive control group (T2), where T2 group fed on basal diet enriched with 1% cholesterol and 0.5% colic acid. The three remaining groups of rats fed on basal diet enriched cholesterol with different levels of tiger nut oil (5, 10 and 15%) for 4 weeks. The results revealed that all hypercholesterolemia groups which feed on 5%, 10%, and 15% of tiger nut oil resulted a varied increase in body weight gain, good intake and growth rate. Results declared that there was a significant difference (P≤0.05) between the positive control group and cholesterol emic group treated with 10% and 15% tiger nut oil in internal organ weights. Whereas, data showed that there was no significant difference (P≥0.05) between the negative control group, and healthy rat groups. The results declared a significant decrease in GOT, GPT enzymes activity, creatinine, blood urea and uric acid for treated groups as compared with healthy rat groups or hypercholesterolemia rats group. Results indicated that hypercholesterolemia rat groups, which treated with 10 or 15% tiger nut oil resulted in a significant decrease (P≤0.05) in the values of serum total lipids, total cholesterol, T.G, LDL-cholesterol, vLDL. LDL-cholesterol and atherogenic index (AI), but showed a significant increase (P≤0.05) in the values of serum HDL-cholesterol. Fatty acid composition of tiger nut oil made it ideally suited as a nutritional defense against lipid oxidation. Hence, the study recommended using tiger nut oil meal-based diets to overcome the problem of hypercholesterolemia beside improving the liver and kidney functions.
Key words: Biological properties, Chemical composition, Cyperus esulentus oil, Hypercholesterolemia.
Full paper in English: PDF