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KMID : 0385219920020020142
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Korean Journal of Gerontology
1992 Volume.2 No. 2 p.142 ~ p.147
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Effect of Brown Algae Component on Obese Rats Induced by a High Fat Diet 1. body Weight, Feed and Gross Efficiencies, Body Fat Content, and Obesity Index
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Kim Jae-Il
Choi Jin-Ho
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Abstract
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Previous studies have demonstrated the effects of brown algae(Undaria pinnatifida) on inhibitory action of obesity during growing Sprague Dawley male rats(160±10 g). This study was designed to compare the dose effect of alginic acid as a major component of brown algae on obesity in obese SD rats(450±10g) induced by a high fat diet with 40% of lard. Diets prepared with lipid(25, 20, 15, 10%) and sodium alginate(0, 3, 6, 9%) were fed ad libitum to obese rats for 6 weeks, and the effects of alginic acid on body weight, feed and gross efficiencies, body fat content, and obesity index such as Rohrer index, Lee index and T.M. index were investigated. There were no significant differences in food intake of alginic acid added groups, but body weights gain were remarkably decreased by 12∼62% with the dose of alginic acid added group to diets. Feed and gross efficiencies were significantly decreased with the dose of alginic acid. These results indicate that inhibition of body weight gain in obese rats was due to decreases of feed and gross efficiencies. Rohrer, Lee and T.M. indices were significantly decreased in alginic acid added groups except for 3%-alginic acid added group compared with obese control group induced by a high fat diet. Body fat contents estimated by T.M. index were decreased in 10, 14, and 38% compared with obese control group. Therefore, It is believed that inhibitory effect of obesity in obese rats was due to loss of body fat content by administration of alginic acid.
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KEYWORD
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alginic acid, obese rats, food intake, feed efficiency, gross efficiency, Rohrer index, Lee index, T.M.
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