The lower values of both indices show the better nutritional quality
of fatty acids; therefore, diets with low AI and TI values could
reduce the potential risk of coronary heart disease (CHD). In this
study, AI and TI indices of raw fish were 0.74 and 0.17, respectively.
Baking and frying had no significant effect on AI, but boiling and
microwave cooking increased it significantly. On the contrary, baking
and boiling had no significant effect on TI, but frying and microwave
cooking increased it significantly. These results regarding AI
and TI were opposite to the findings of Rosa et al. in African catfish.
They found lowest AI values in fried samples and TI values of all
samples were similar to the raw sample (Rosa et al., 2007).