Encyclopedia

2-methylbutanal

2-methylbutanal

[¦tü ‚meth·əl′byüt·ən‚al]
(organic chemistry)
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
Mentioned in
References in periodicals archive
The generation of 2-methylbutanal, 3-methylbutanal and benzaldehyde was increased by HPP, while aging only influenced 2-methylbutanal levels.
In particular, 2-methylbutanal, 3-methylbutanal, methional, and phenylacetaldehyde arise from Strecker degradation products which occur by a transamination between [alpha]-dicarbonyl products and amino acids.
AEDA found that acetaldehyde, 2-methylpropanal, 2-methylbutanal, 3-methylbutanal, acetic, butanoic, hexanoic, octanoic, and decanoic acids, ethyl butanoate, ethyl hexanoate, dimethyl trisulfide, methional and phenylacetaldehyde had high FD values.
In addition, 3-methylbutanal, 2-methylpropanal and 2-methylbutanal contributed to the malty aroma.
reported that the amount of 2-methylbutanal and 3-methylbutanal increased as processing time went by.
An internal standard compound, 2-methyl-3-methanone, n-alkane ([C.sub.8]-[C.sub.20]) and authentic compounds including acetaldehyde, trans-2-decenal, 2-methylpropanal, 2-methylbutanal, 3-methylbutanal, pentanal, hexanal, heptanal, (E), 2-heptenal, 2-methylthiazole, benzaldehyde, octanal, benzeneacetaldehyde, nonanal, decanal, (E,E), 2,4-decadienal, ethanol, 1-propanol, 2-furanmethanol, 1-hexanol, 1-octen-3-ol, fufural, tetradecanal, 1-octanol, acetone, 2-propanone, 2,3-butanedione, 2-butanone, 2-heptanone, 3-octanone, dimethyldisulfide, pyrazine, methylpyrazine, 2,3-dimethylpyrazine etc.
Key differentiating volatile compounds in the SMP included 3-methylbutanal, 2-methylbutanal, dimethyl disulfide, hexanal, 2-hexanone, toluene, 2-heptanone and heptanal.
All samples contained nutty compounds, such as 2-ethyl-3,5-dimethylpyrazine and 2,3-diethyl-5-methylpyrazine; chocolate-malty compounds like 2-methylbutanal; as well as rosy compounds--phenylacetaldehyde.
For example, strain A degrades isoleucine to 2-methylbutanal, and the production of ethanol is stimulated.
Copyright © 2003-2025 Farlex, Inc Disclaimer
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.