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Influence of Polydimethylsiloxane on the Formation of 4‐Hydroxynonenal in Soybean Oil at Frying Temperature
Author(s) -
Gerde Jose A.,
Hammond Earl G.,
White Pamela J.
Publication year - 2011
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/s11746-011-1811-2
Subject(s) - polydimethylsiloxane , soybean oil , chemistry , decomposition , 4 hydroxynonenal , chromatography , organic chemistry , food science , lipid peroxidation , antioxidant
Soybean oils treated with 25 or 100 ppb polydimethylsiloxane (PDMS) and a control with no PDMS were heated at 180 °C for 48 h. The decomposition of linoleate and tocopherols was monitored, as well as the changes in concentration of 4‐hydroxynonenal (HNE). HNE was rapidly formed at the beginning of the heating period in the control and in the oil containing 25 ppb PDMS. HNE reached a maximum concentration of 0.033 μmol/g oil and then began to slowly decline. The maximum HNE concentration was attained at 18 h in the control oil compared with 28 h in the oil with 25‐ppb PDMS. In the oil with 100‐ppb PDMS the HNE increased very slowly during the first 32 h after which the HNE increased faster, reaching 0.033 μmol/g oil at 46 h and showed no decline during the 48 h heating period. Thus, PDMS had a beneficial effect in preventing the formation of the toxic HNE.