Food Chemistry

(Sean Pound) #1

980 22 Spices, Salt and Vinegar


Table 22.9.Compounds present in spices causing a hot burning organoleptic perception


Name Structure Occurrencea Relative
pungencyb


Piperinec Pepper (1) 1. 0


Piperanine Pepper (1) 0. 5


Piperylin Pepper (1) 0–1d


Gingerol Ginger (17) 0. 8


Shogaol Ginger (17) 1. 6


Capsaicin Capsicum (4; 7) 150–300d


Dihydro-
capsain


Capsicum (4; 7) like Capsaicin

Nordihydro-
caicin


Capsicum (4; 7) 75% Capsaicin

aThe numerals in brackets refer to Table 22.1.
bReference: pungency of piperine = 1.
cThe correspondingcis,trans-compound is devoid of pungent taste.
dLiterature data are within the range of values presented.


tion, hexanal causes an aroma defect in ginger
oleoresins.
The concentration of the capsaicinoids XXX,
XXXI, and XXXII (Table 22.9) in the fruits


of capsicum or in various other pepper plants
depends on the variety, cultivation, drying and
storage conditions, and varies between 0.01 and
1 .2%. These compounds are the most pungent
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