Skip to main content
Log in

Flow test by the International Dysphagia Diet Standardization Initiative reveals distinct viscosity parameters of three thickening agents

  • Original Article
  • Published:
Journal of Food Science and Technology Aims and scope Submit manuscript

Abstract

The International Dysphagia Diet Standardization Initiative (IDDSI) flow test is useful for the global standardization of food consistencies of dysphagia patients. In clinical practice, different compositions of food thickeners are commonly used, directly influencing viscosity parameters and swallowing physiology. We aimed to compare the IDDSI thickness levels, remaining volume in the syringe (RVS), and viscosity parameters of three different food thickeners. As a secondary objective, we compared the cost of preparing 100 mL of thickened drinks using the studied thickeners. Thickeners A (xanthan gum), B (corn starch, tara gum, xanthan gum, and guar gum), and C (corn starch) were prepared in increasing concentrations from 1 to 7 g/100 mL and were assayed in quintuplicate using the IDDSI flow test. Thickeners A, B, and C presented statistically different results for the IDDSI levels, RVS, and viscosity parameters at all concentrations. Thickener A reached higher levels in the IDDSI framework, RVS, and viscosity parameters compared with thickeners B and C. A large range of RVS was observed at different concentrations for thickener B compared with C. Regarding viscosity, thickeners B and C, with corn starch in their composition, showed exponential behavior as concentrations increased, while thickener A presented a linear trend. The thickener composition was significantly influenced by IDDSI classification, RVS, and viscosity parameters. The study shows that xanthan gum thickeners present less variability in IDDSI, RVS, and viscosity compared with starch-based thickeners.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3

Similar content being viewed by others

Abbreviations

IDDSI:

International dysphagia diet standardization initiative

RVS:

Remaining volume in the syringe

XG:

Xanthan gum

ST:

Starch

References

Download references

Funding

This study did not provide funding to any institution, company or industry.

Author information

Authors and Affiliations

Authors

Contributions

JVH, main author of the manuscript, conceptualization, and design, conducting the analysis and critical interpretation of the literature, writing original draft, editing and final review. HSAT, investigation, methodology, analysis, and interpretation of the literature, editing and final review of the manuscript; CM de S, investigation, conducting the methodology, supervision (supporting), analysis, and interpretation of the literature, editing and final review of the manuscript; JAA, investigation, methodology, analysis, editing and final review of the manuscript; F de SF, analysis, editing and final review of the manuscript; PGM, methodology, analysis, editing and final review of the manuscript; LFM, senior author, conceptualization, and design, conducting the analysis and critical interpretation of the literature, writing and final revision.

Corresponding author

Correspondence to José Vergara.

Ethics declarations

Conflict of interest

The authors declare that they do not have any conflict of interest.

Ethical statement

This study did not involve any human or animal testing. This research did not require submission to analysis by the Ethics Committee because there were no interventions performed with humans nor any data collected from them. This research was conducted in accordance to the World Medical Association Declaration of Helsinki.

Additional information

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Vergara, J., Teixeira, H.S., de Souza, C.M. et al. Flow test by the International Dysphagia Diet Standardization Initiative reveals distinct viscosity parameters of three thickening agents. J Food Sci Technol 59, 3627–3633 (2022). https://doi.org/10.1007/s13197-022-05369-5

Download citation

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s13197-022-05369-5

Keywords

Navigation