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A gas chromatographic reactor to measure the effectiveness of antioxidants for polyunsaturated lipids
Author(s) -
Faria J. A. F.
Publication year - 1982
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/bf02636317
Subject(s) - butylated hydroxytoluene , propyl gallate , chemistry , ascorbic acid , chromatography , citric acid , linoleic acid , polyunsaturated fatty acid , antioxidant , lipid oxidation , organic chemistry , food science , fatty acid
A method and apparatus consisting of a gas chromatographic reactor was developed to study the effect of antioxidants on lipid‐containing systems. The oxygen uptake during the oxidation tests was continuously measured. The relative efficiencies, expressed as protective index, for butylated hydroxytoluene (BHT), propyl gallate (PG), α‐tocopherol, citric acid, and ascorbic acid on the oxidation of linoleic acid at 85 C and 55 mmHg were determined. The effect of increasing the concentration of BHT (0.025, 0.05, and 0.1%) on the oxidation of safflower oil at 70 C and 45 mmHgO 2 was observed. The method was found to be a rapid and reproducible approach to investigate the effect of antioxidants on polyunsaturated lipids.