Display options
Cite
Epke EM, McClure ST, Lawless HT. Effects of Nasal Occlusion and Oral Contact on Perception of Metallic Taste from Metal Salts. Food Qual Prefer. 2008;20(2):133-137doi: 10.1016/j.foodqual.2008.08.001.
Epke, E. M., McClure, S. T., & Lawless, H. T. (2009). Effects of Nasal Occlusion and Oral Contact on Perception of Metallic Taste from Metal Salts. Food quality and preference, 20(2), 133-137. https://doi.org/10.1016/j.foodqual.2008.08.001
Epke, Effie M, et al. "Effects of Nasal Occlusion and Oral Contact on Perception of Metallic Taste from Metal Salts." Food quality and preference vol. 20,2 (2009): 133-137. doi: https://doi.org/10.1016/j.foodqual.2008.08.001
Epke EM, McClure ST, Lawless HT. Effects of Nasal Occlusion and Oral Contact on Perception of Metallic Taste from Metal Salts. Food Qual Prefer. 2009 Mar;20(2):133-137. doi: 10.1016/j.foodqual.2008.08.001. Epub 2008 Aug 09. PMID: 27642233; PMCID: PMC5026321.
Copy Download .nbib Format: NLM
Share it on

Food Qual Prefer. 2009 Mar;20(2):133-137. doi: 10.1016/j.foodqual.2008.08.001. Epub 2008 Aug 09.

Effects of Nasal Occlusion and Oral Contact on Perception of Metallic Taste from Metal Salts.

Food quality and preference

Effie M Epke, Scott T McClure, Harry T Lawless

Affiliations

  1. Department of Food Science, New York State College of Agriculture and Life Sciences, Cornell University, Ithaca, NY 14853.

PMID: 27642233 PMCID: PMC5026321 DOI: 10.1016/j.foodqual.2008.08.001

Abstract

Iron and copper salts have complex olfactory and gustatory properties including a metallic flavor component that is decreased by nasal occlusion. To examine the sensory properties of ferrous sulfate and copper sulfate, a trained descriptive panel evaluated these compounds at equal molarity and perceived equal intensity with and without nasal occlusion. Ferrous sulfate exhibited a metallic taste and metallic aftertaste and copper sulfate exhibited a more pronounced metallic aftertaste. Metallic sensations were decreased by nasal occlusion, which in the absence of any orthonasal metallic smell, implies that the sensations were retronasally perceived volatiles in the nose open condition. Ferrous sulfate showed a larger effect of nasal occlusion. A second experiment isolated ferrous sulfate solutions from oral contact via a plastic barrier. In comparison to a condition in which oral contact was allowed, intensity ratings were decreased. This result is consistent with the hypothesis that rinses with solutions of metal salts, particularly ferrous sulfate, generate volatile lipid oxidation products in the mouth that are perceived retronasally as metallic flavors.

Keywords: Descriptive analysis; metallic taste; nasal occlusion; retronasal smell

References

  1. Auris Nasus Larynx. 1986;13 Suppl 1:S1-15 - PubMed
  2. Physiol Behav. 2007 Oct 22;92(3):487-91 - PubMed
  3. J Agric Food Chem. 2005 Oct 19;53(21):8325-7 - PubMed
  4. Chem Senses. 2001 Jan;26(1):85-9 - PubMed
  5. Acta Otolaryngol. 1984 Jul-Aug;98(1-2):152-7 - PubMed
  6. Physiol Behav. 2005 Jun 30;85(3):308-13 - PubMed
  7. Chem Senses. 2006 Sep;31(7):689-97 - PubMed
  8. Physiol Behav. 1980 Mar;24(3):601-5 - PubMed
  9. J Sens Stud. 2005 Apr;20(2):97-113 - PubMed
  10. Chem Senses. 2005 Mar;30(3):185-94 - PubMed
  11. Angew Chem Int Ed Engl. 2006 Oct 27;45(42):7006-9 - PubMed
  12. Chem Senses. 1996 Oct;21(5):529-43 - PubMed
  13. Chem Senses. 2004 Jan;29(1):25-33 - PubMed

Publication Types

Grant support