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Properties of maltodextrins and glucose syrups in experiments in vitro and in the diets of laboratory animals, relating to dental health.

Abstract
The objective of the study was to examine the cariogenic potentials of maltodextrins and glucose syrups (two glucose polymers derived from starch) using a range of techniques in vitro and in laboratory animals. The experimental methods used were: (1) measurement of acid production from glucose syrups and maltodextrins by human dental plaque micro-organisms; (2) evaluation of the role salivary alpha-amylase in degrading oligosaccharides (degree of polymerisation > 3) in the glucose polymers, estimating the products by HPLC; (3) assessment of the fermentability of trioses relative to maltose; (4) measurement of dental caries levels in three large-scale studies in laboratory rats fed on diets containing the glucose polymers. It was found that acid production from the glucose polymers increased as their higher saccharide content fell. Salivary alpha-amylase rapidly degraded the oligosaccharides (degree of polymerisation > 3), mainly to maltose and maltotriose. In the presence of oral micro-organisms, maltotriose took longer to ferment than maltose, but by the end of a 2 h period the total amount of acid produced was the same from both. Incorporated into the diets in solid form, the glucose syrups and maltodextrins were associated with unexpectedly high levels of dental caries. In conclusion, the findings were unforeseen in the light of earlier data that a glucose syrup was less cariogenic than sucrose.
AuthorsT H Grenby, M Mistry
JournalThe British journal of nutrition (Br J Nutr) Vol. 84 Issue 4 Pg. 565-74 (Oct 2000) ISSN: 0007-1145 [Print] England
PMID11103228 (Publication Type: Comparative Study, Journal Article)
Chemical References
  • Cariogenic Agents
  • Polysaccharides
  • Trisaccharides
  • maltotriose
  • Maltose
  • maltodextrin
  • alpha-Amylases
  • Glucose
Topics
  • Analysis of Variance
  • Animals
  • Bacteria (metabolism)
  • Cariogenic Agents (adverse effects, metabolism)
  • Chromatography, High Pressure Liquid
  • Dental Caries (etiology, metabolism)
  • Dental Plaque (microbiology)
  • Female
  • Glucose (adverse effects, metabolism)
  • Humans
  • Male
  • Maltose (adverse effects, metabolism)
  • Polysaccharides (adverse effects, metabolism)
  • Rats
  • Rats, Inbred Strains
  • Saliva (enzymology)
  • Trisaccharides (metabolism)
  • alpha-Amylases (metabolism)

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