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Osmotic Load from Glucose Polymers

Department of Pediatrics, University of Alberta Hospital, Edmonton, Alberta, Canada

Debbie Poh, B.SC., R.D.

Nutrition Support Services, University of Alberta Hospital, Edmonton, Alberta, Canada

Marlene Leong, B.Sc., R.D.

Nutrition Support Services, University of Alberta Hospital, Edmonton, Alberta, Canada

Yun K. Tam, PH.D.

Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, Alberta, Canada

Paul Succop, PH.D.

Department of Environmental Health, Division of Biostatistics, University of Cincinnati, Cincinnati, Ohio

Elizabeth G. Checkland, B.SC., R.D.

Nutrition Support Services, University of Alberta Hospital, Edmonton, Alberta, Canada

Glucose polymer is a carbohydrate source with variable chain lengths of glucose units which may result in variable osmolality. The osmolality of two commercial glucose polymers was measured in reconstituted powder infant formulas, and the change in osmolality of infant milk formulas at the same increases in energy density (67 kcal/dL to 81 and 97 kcal/ dL) from the use of additional milk powder or glucose polymers was compared. All samples were prepared from powders (to nearest 0.1 mg), and osmolality was measured by freezing point depression. For both glucose polymers the within-batch variability of the measured osmolality was <3.5%, and between-batch variability of the measured osmolality was <9.6%. The measured osmolality varies linearly with energy density (p < 0.001) and was highest in infant formula reconstituted from milk powder alone. However, there exist significant differences in the measured osmolality between different glucose polymer preparations. At high energy densities (97 kcal/dL), infant milk formulas prepared with milk powder alone or with the addition of certain glucose polymer preparation may have high osmolality (450 mosm/kg) and theoretically predispose the infant to complications of hyperosmotic feeds. (Journal of Parenteral and Enteral Nutrition 15:144-147, 1991)

Journal of Parenteral and Enteral Nutrition, Vol. 15, No. 2, 144-147 (1991)
DOI: 10.1177/0148607191015002144


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