Studies on the TBA test for rancidity grading: II. TBA reactivity of different aldehyde classes
Citations Over TimeTop 19% of 1973 papers
Abstract
Abstract The TBA reactivities of several aldehydes, most of them known as ordinary products of lipid autoxidation, have been investigated systematically. Gas liquid chromatography‐purified alkanals, 2‐alkenals and 2,4‐alkadienals were reacted with TBA in water solution. The formation of pigments with maximum absorbance at 450 and 530 nm was measured at optimum time‐temperature conditions‐different for readings at 450 and 530 nm‐ and values for absorbance per mole aldehyde were calculated. These values show that on reaction with TBA all studied aldehydes build a yellow 450 nm pigment, while only 2,4‐alkadienals and, to a lesser extent, 2‐alkenals produce the red 530 nm pigment. Consequently both pigments are measures of aldehydic products of lipid autoxidation: In the case of predominant unsaturated aldehyde formation, determination of the pigment with maximum absorbance at 530 nm is preferable. However, if alkanals are predominant, the determination of the yellow pigment at 450 nm is more apporpriate, as it grants higher sensitivity.
Related Papers
- → Thiobarbituric acid reaction of aldehydes and oxidized lipids in glacial acetic acid(1985)141 cited
- → Studies on the TBA test for rancidity grading: II. TBA reactivity of different aldehyde classes(1973)143 cited
- → THE PREPARATION AND USE OF ALDEHYDE ESTERS FORMED BY OZONATION OF THE METHYL ESTERS OF VARIOUS UNSATURATED ACIDS(1926)41 cited
- → Synthesis and Antioxidative Activity of Thio Esters Derived from ω-(3,5-Di-tert-butyl-4-hydroxyphenyl)alkanethiols(2001)1 cited
- → ChemInform Abstract: Fe(III)‐EDTA Mediated Autoxidation of 2,6‐Di‐t‐butylphenol and Substituted Hydroquinones by Molecular Oxygen.(1994)