Czech J. Food Sci., 2009, 27(10):S333-S336 | DOI: 10.17221/1082-CJFS

Sensitivity of Assessors to Ferrous Salts

Z. Panovská*, A. Váchová, J. Řeřichová
Department of Food Chemistry and Analysis, Institute of Chemical Technology in Prague, 66 28 Prague, Czech Republic

Taste is the chemical sensation whose function is not very well known. Recently it was shown that the range of taste is more extensive than the five basic taste sweet, salty, bitter, sour and umami. A metallic taste has been suggested as another basic taste, but its mode of perception is not well understood and has not been really accepted in the taste literature. Ferrous sulphate solutions were presented to the assessors so their sensitivity and best estimate thresholds (BET) were measured. The best estimated threshold range was 0.00049-0.00669 g/l for demineralised water, 0.00079-0.00669 g/l for distilled water and 0.00108-0.00669 g/l for tap water.

Keywords: sensory analysis; ferrous sulphate solutions; sensitivity; detection thresholds

Published: June 30, 2009  Show citation

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Panovská Z, Váchová A, Řeřichová J. Sensitivity of Assessors to Ferrous Salts. Czech J. Food Sci. 2009;27(Special Issue 1):S333-336. doi: 10.17221/1082-CJFS.
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References

  1. Hurrell R.F. (2002): Fortification. Overcoming technical and practical barriers. Journal of Nutrition, 132: 806S-812S. Go to original source... Go to PubMed...
  2. ISO 3972 (1991): Sensory analysis. Methodology. Method of investigating sensitivity of taste. International Organization for Standardization, Geneva.
  3. ISO 8589 (2007): Sensory analysis - General guidance for the design of test rooms. International Organization for Standardization, Geneva.
  4. ISO 8586-1 (1993): Sensory analysis - General guidance for the selection, training and monitoring of assessors. Part 1: Selected assessors. International Organization for Standardization, Geneva.
  5. Lawless H.T., Schlake S., Smythe J., Lim J., Yang H., Chapman K., Bolton B. (2004): Metallic taste and retronasal smell. Chemical Senses, 29: 25-33. Go to original source... Go to PubMed...
  6. Lim J., Lawless H.T. (2006): Detection thresholds and taste qualities of iron salts. Food Quality and Preference, 17: 513-521 Go to original source...
  7. Regulation (EC) No 1925/2006 of the European Parliament and of the Council of 20 December 2006 on the addition of vitamins and minerals and of certain other substances to foods. Availabel at: http://eurlex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2006:404:0026:0038:EN:PDF (accessed March 13, 2009).
  8. Stevens D.A., Smith R.F., Lawless H.T. (2006): Multidimensional scaling of ferrous sulfate and basic tastes. Physiology & Behavior, 87: 272-27. Go to original source... Go to PubMed...
  9. Yang H.H., Lawless H.T. (2006): Time-intensity characteristics of iron compounds. Food Quality and Preference, 17: 337-343. Go to original source...

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