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Related Experiment Videos

Genotoxicity tests on D-tagatose.

C L Kruger1, M H Whittaker, V H Frankos

  • 1Environ Corporation, 4350 N. Fairfax Drive, Arlington, Virginia.

Regulatory Toxicology and Pharmacology : RTP
|May 26, 1999
PubMed
Summary

D-tagatose, a low-calorie sweetener, was evaluated for genotoxicity using five standard assays. Studies confirmed that D-tagatose is not genotoxic, indicating its safety for consumption.

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Area of Science:

  • Food Science
  • Toxicology
  • Biochemistry

Background:

  • D-tagatose is a functional sweetener offering sucrose-like taste with fewer calories.
  • Assessing the genotoxic potential of food ingredients is crucial for consumer safety.
  • Previous safety data on D-tagatose requires comprehensive genotoxicity evaluation.

Purpose of the Study:

  • To determine the genotoxic potential of D-tagatose.
  • To evaluate D-tagatose safety using a battery of standard genotoxicity assays.
  • To provide evidence-based data on the safety of D-tagatose as a food ingredient.

Main Methods:

  • Ames Salmonella typhimurium reverse mutation assay.
  • Escherichia coli/mammalian microsome assay.
  • Chromosomal aberration assay in Chinese hamster ovary cells.
  • Mouse lymphoma forward mutation assay.
  • In vivo mouse micronucleus assay.

Main Results:

  • D-tagatose showed no mutagenic activity in Ames or E. coli assays.
  • No chromosomal aberrations were observed in Chinese hamster ovary cells.
  • D-tagatose did not induce mutations in the mouse lymphoma assay.
  • The in vivo micronucleus assay confirmed no genotoxic effects in mice.
  • All five assays consistently demonstrated the absence of genotoxicity for D-tagatose.

Conclusions:

  • D-tagatose is not genotoxic based on the conducted standard assays.
  • The findings support the safety of D-tagatose for use as a food sweetener.
  • Comprehensive genotoxicity testing indicates D-tagatose poses no significant genetic risk.

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