Journal of Food Bioactives, ISSN 2637-8752 print, 2637-8779 online
Journal website www.isnff-jfb.com

Review

Volume 10, June 2020, pages 20-31

Lipid-derived flavor and off-flavor of traditional and functional foods: an overview

Figures

Figure 1.
Figure 1. Formation of hexanal, 2,4-decadienal, 2-octenal and 2-pentylfuran from autoxidation of linoleic acid.
Figure 2.
Figure 2. Formation of alkyl substituted heterocyclic, 2-hexylthiophere and 2-pentyl (2H-) thiapyran from 2,4-alkadienal with hydrogen sulfide (adopted from Farmer and Mottram, 1990).
Figure 3.
Figure 3. Relative concentration (%) of selected acyclic and heterocyclic compounds formed by the reaction between cysteine and ribose in the absence or presence of beef triacylglycerols and beef phospholipids (data from ref. Mottram, 1998; Farmer et al., 1989; Farmer and Mottram, 1990).
Figure 4.
Figure 4. The basic structure of heterocyclic flavor compounds in cooked meat.
Figure 5.
Figure 5. Inhibitory effect on the generation of selected volatile oxidation products in nitrite- and nitrite-free cured meats (adopted from Shahidi, 2002). TBARS, 2-thiobarbituric acid reactive substances; 1, sodium ascorbate; 2, sodium tripolyphosphate; 3, cooked cured-meat pigment; 4, t-butylhydroquinone; and 5, sodium nitrite.

Table

Table 1. Volatile compounds found in soybean products
 
Raw soybean (Cowan et al., 1973)Soymilk ( Lv et al., 2011)Cooked soymilk ( Lv et al., 2011)Soybean oil (Steenson et al., 2002)
Acetaldehyde3-MethylbutanalBeany flavor compoundsPentane
n-Hexanal2-Ethylfurann-HexanalPentanal
2-PentanalPentanal1-HexanolHexanal
Pentanol acetateButyl acetate1-octen-3-ol2-Butanone
Hydrogen sulfiden-Hexanal(E)-2-hexenalHeptanal
AcetoneD-limonene(E,E)-2,4-decadienal2-Heptenal
Methanol(E)-2-pentenalNon-beany flavor compounds2-Pentylfuran
EthanolHeptanal(E)-2-octenal2,4-Heptadienal
Isopentanol2-PentylfuranNonanal(E)-2-Octenal
n-Pentanol(E)-2-hexenal(E)-2-nonenalNonanal
n-Hexanol1-Pentanol(E)-2-Nonenal
n-HeptanolOctanal2-Decenal
Dimethylamine(E)-2-heptenal
Acetic acidn-Hexanol
Nonanal
(E)-2-octenal
Acetic acid
1-octen-3-ol
Heptanol
(E,E)-2,4-heptadienal
Benzaldehyde
(E)-2-nonenal
(E)-2-decenal
(E,E)-2,4-nonadienal
(E,E)-2,4-decadienal