isovaleric acid

(redirected from 3-Methylbutanoic acid)
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isovaleric acid

[¦ī·sō·və′ler·ik ′as·əd]
(organic chemistry)
(CH3)2CHCH2COOH Color-less liquid with disagreeable taste and aroma; boils at 176°C; soluble in alcohol and ether; found in valeriana, hop, tobacco, and other plants; used in flavors, perfumes, and medicines.
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Trimethylamine (a fishy odor), 2-methylpropanal (a malty, dark chocolate odor), 3-methylbutanal (a malty, dark chocolate odor), acetic acid (a sour odor), propanoic acid (a cheesy odor), 2-methylpropanoic acid (a cheesy odor), butanoic acid (a cheesy odor), 3-methylbutanoic acid (cheesy, sweaty odors), and methional (a cooked potato odor) had the highest odor activity values: greater than 100.
Acetic acid, 3-methylbutanoic acid and 2- methylbutanoic acid were found in both Doenjang and Chungukjang samples but only acetic acid was present in sesame oil while none of them was found in beef.
The compounds leached in the laboratory at the highest concentrations were benzoic acid, naphthalene, methylenebisphenol, diethylphenol and 3-methylbutanoic acid.

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