Effect of Peaches, Pears and Green Tea on Plasma Lipids Profile and Antioxidant Content in Rats Fed High Sucrose Diet


The beneficial effects of feeding syrup of peaches and pears (peel and pulp) & green tea on the restoration of the changes produced by feeding high sucrose diet on plasma lipid profile, plasma antioxidant activity, and antioxidant enzymes in red blood cells (RBC) hemolysate were studied. High sucrose diet induced hyperlipidemia as manifested by significant (P ≤ 0.05) increases in the levels of cholesterol, triglycerides (TG) and low density lipoproteins (LDL) in plasma from 103.33 ± 1.8, 61.17 ± 0.48 and 26.6 ± 5.01 mg/dl to 136.67 ± 2.2, 81.3 ± 1.5 and 64.6 ± 6.5 mg/dl respectively. The high density lipoproteins (HDL) level was not significantly affected. TG levels in heart muscles increased significantly P ≤ 0.05 from the level of 194.14 ± 4.35 μg/g in the negative control to 269.72 ± 5.39 μg/g. Administration of fruits syrup and green tea resulted in a significant variable reduction in the elevated levels of cholesterol, TG and LDL and TG in the heart. Administration of sucrose resulted also in elevation of Malondialdehyde (MDA) in plasma from 5.06 ± 0.18 in the negative control to 14.81 ± 0.48 μmol/L in the positive control. This was also accompanied by reduction in the activities of supper oxide dismutase (SOD), glutathione peroxidase (GSH-Px), catalase (CAT) and a decrease in the concentration of reduced glutathione (GSH) in plasma, indicating lipid peroxidation. The activities of SOD, GSH-Px, CAT in the negative control were 8.96 ± 0.19, 315.67 ± 5.86, 209 ± 2.18 U/gHb respectively and were reduced significantly in the positive control to 4.7 ± 0.2, 273.83 ± 7.85, 207 ± 2.53 U/g Hb. There was a significant decrease in the level of total antioxidant status (TAS) in plasma from 1.45 ± 0.09 to 0.88 ± 0.09 nmol/L. However, no statistically significant changes were noticed in the concentrations of plasma total proteins and albumin. Intake of syrup of peaches and pears (peel and pulp) & green tea increased the level of TAS and GSH and decreased the level of LDL. The treatment also decreased significantly (P ≤ 0.05) the levels of plasma cholesterol, TG and heart TG levels. The activities of SOD and GSH-Px were increased following the treatment. It can be concluded that syrup of peaches and pears (peel and pulp) & green tea modulate lipid metabolism and enhance antioxidant status and in this respect green tea produced the best effect followed by peels of pears and peaches. The beneficial effect produced by fruits syrup and green tea may be due to their contents of phytochemicals.

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Zunaidy, N. , Al-Sowayan, N. and Mousa, H. (2015) Effect of Peaches, Pears and Green Tea on Plasma Lipids Profile and Antioxidant Content in Rats Fed High Sucrose Diet. Food and Nutrition Sciences, 6, 893-905. doi: 10.4236/fns.2015.610094.

Conflicts of Interest

The authors declare no conflicts of interest.


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