Pungency Threshold: 8.6 million SHU (Ref 7, 461). Other studies have determined different pungency thresholds for homocapsaicin; reported values range from 6.9 million to 13.1 million SHU (Ref 9, 902). Top
Common name: Homodihydrocapsaicin Semi-systematic names: N-vanillyl-9-methyldecanamide; vanillylamide of 9-methyldecanoic acid Systematic name: N-(4-hydroxy-3-methoxybenzyl)-9-methyldecanamide Molecular formula: C19H31NO3 Molecular weight: 321.46
Detection Threshold: 24.16 ± 4.18 million SHU (Ref 9, 903).
Pungency Threshold: 14.04 ± 1.01 million SHU (Ref 9, 904). Other studies have determined different pungency thresholds for homodihydrocapsaicin; reported values range from 8.1 million to 8.6 million SHU (Ref 9, 902 and Ref 7, 461)
Type of pungency: In a detailed study performed by Anna Krajewska and John Powers (Ref 9), homodihydrocapsaicin, in a very dilute solution, was noted as producing a "very irritating, harsh, and very sharp" "numbing burn" located in the
throat and the back of the tongue and palate that developed slowly and "was prolonged and difficult to rinse out" (Ref 9, 904). Top
All of the chemical structures and reaction mechanism diagrams used in this
section are my own creations. None of the chemical structures that I've seen on any other Chile Head sites show unshared electrons, nor do they properly depict the unsaturation in the
capsaicin molecule, both of which are major determinants of the chemical behavior of capsaicin. Due to the use of a really cheesy red-gold Chrome effect, all of my
technical artwork is readily identifiable (and hopefully too ugly to steal). If you see someone else using my artwork without giving proper credits, please 1) give them a boot in the
rear via email, and/or 2) let me know about it so I can do the same.
Last updated 31 January 2015.
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