The significant increase in SV of tomato seed oil (176.43e187.65 mg/g, P < 0.05) during heating (Fig. 2e) was caused by the decomposition of oil at high temperature into smaller molecular
products such as free fatty acids (Adeeko & Ajibola, 1990)and further into secondary oxidation products, like carbonyl compoundswith a very low molecular weight (Tyagi & Vasishtha,
1996).