The differences among four vegetable oils on breaking force of gels might be possibly due to their different fatty acid compositions. Milk fat increased hardness of milk gels more than vegetable oils(Xiong& Kinsella. 1991). Sausages in which the animal fat was partially replaced by vegetable oil were softer than all-animal fat controls(Ambrosiadis et al., 1996). Porcine myofi- brillar(PM) protein gels with lard were more rigid than those with peanut oil(Wu et al. 2009). The penetration forces of PM gels with olive oil were higher than those with peanut oil, because olive oil containing 140 g/kg saturated and 810 g/kg monounsaturated fatty acids is more physically stable and less fluid or deformable than peanut oil containing 160 g/kg saturated and 450 glkg mono unsaturated fatty acids(wu et al. 2011). Among four vegetable oils peanut oil has the highest saturated and monounsaturated fatty acids. while corn oil has the lowest saturated fatty acids and highest