Nutrition Research and Practice

The Korean Nutrition Society (한국영양학회)
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Effects of sn-2 palmitic acid-fortified vegetable oil and fructooligosaccharide on calcium metabolism in growing rats fed casein based diet

  • Lee, Yeon-Sook (Department of Food and Nutrition, Research Institute of Human Ecology Seoul National University) ;
  • Kang, Eun-Young (Department of Food and Nutrition, Research Institute of Human Ecology Seoul National University) ;
  • Park, Mi-Na (Department of Food and Nutrition, Research Institute of Human Ecology Seoul National University) ;
  • Choi, You-Young (R&D Center, Maeil Dairy Industry Co.) ;
  • Jeon, Jeong-Wook (R&D Center, Maeil Dairy Industry Co.) ;
  • Yun, Sung-Seob (R&D Center, Maeil Dairy Industry Co.)
  • Published : 2008.03.31
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Abstract

This study was carried out to investigate the efficacy of sn-2 palmitic acid-fortified vegetable oil (Sn2PA) on calcium absorption and to confirm the synergistic effects of fructooligosaccharide on calcium absorption. Male SD rats were fed 6 kinds of casein based diets containing vegetable oil (control), sn-2 palmitic acid-fortified vegetable oil (Sn2PA) and Sn2PA with fructooligosaccharide(Sn2PAFO) in two levels of calcium (normal 0.5% and high 1.0%) for 3 weeks. Total lipids, cholesterol, triglyceride and calcium in blood were measured. Feces were collected using cages for 4 days. Serum concentrations of total lipids and calcium were not significantly different among groups. However, serum triglyceride was significantly decreased by fructooligosaccharide supplementation regardless of dietary calcium level. The lipid absorption was not significantly different among experimental groups. Calcium absorption was significantly higher in Sn2PAFO group than other groups. Calcium solubility of intestine was increased by sn-2 palmitic acid supplementation. These results suggest that sn-2 palmitic acid and fructooligosaccharide supplementation could be beneficial for baby foods including infant formula, with regard to increasing absorption of calcium by more soluble calcium in the small intestinal content.

Keywords

References

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