Chemistry Reference
In-Depth Information
Table 14.9.
(Continued )
Defect
Chemicals
Mechanism of Formation
Reference
Club cheese
Musty/dirty
2-Alkanone (C7,9,11), 8-nonen-2-one
Mould growth/
metabolites
Marsili (2007b)
Skim milk powder
Stale
o-Aminoacetophenone
-
Parks et al. (1964)
Stale
2-Furaldehyde, 2-furfuryl butyrate, alkylpyrazine,
Non-enzymatic browning
Ferrenti and Flanagan
(1972)
N-ethyl-2-formylpyrrole
-Ionone, benzothiazole, tetradecanal
Cow house-like
-
Shiratsuchi et al. (1994b)
Papery/cardboard-like
(E,E)-2,4-Nonadienal, (E,E)-2,4-decadienal
Lipid oxidation
Karagul-Yuceer et al.
(2003a)
Infant formula
Rancid
Propanal, pentanal, hexanal
Lipid oxidation
Romeu-Nadal et al. (2007)
Whey protein concentrates/isolates
Cabbage off-flavour
Dimethyl trisulphide
Degradation of Met
Wright et al. (2006)
Sour cream powder
Melon/ripened kiwi-like
2,4,5-Trimethyloxazole
Reaction of diacetyl and
Arg/Cys
Marsili (2007c)
