“…But, when the stability in microwave ovens of PUFAs from different food products such as butterfish, mullet, mackerel and sardines (Hearn et al 1987), herring (RegulskaIiow and Iiow 2002), cultured sea bass (Yanar et al 2007), soybeans , sunflower seeds (Yoshida et al 2002), kernels of pumpkin seeds (Yoshida et al 2006), was investigated, microwave heating did not lead to significant losses of polyunsaturated fatty acids. Only Murcia et al (1999) reported a decrease in 18:2, 18:3, 20:4 and 22:6 PUFAs in samples of egg yolk subjected to microwaving, and Takagi et al (1999) in the percentages of PUFAs from soy beans .…”