Sensory evaluation fried foods

The sensory properties of fried foods are evaluated either immediately after frying, e.g., French fries, chicken, fish, or after storage, e.g., potato chips and other snack... 

The effectiveness of the appropriate FRI combination in stabilizing oils, normally sprayed onto expanded cereals, snacks and pet food is shown in Figure 3. The application of com oil to an expanded pet food at a level of 5% posed an unusual stress. The oil is stressed by the high surface area of the expanded food. Inclusion of oleoresin rosemary or ethoxyquin, or a patented ascorbic acid (Todd, 1989, 1992) provides varying degrees of improvement in shelflife as determined by sensory evaluation of the aroma, a key factor in dog foods. Aroma development correlated well with the Active Oxygen Method (AOM) for peroxide value determination. 

Food texture is measured by sensory analysis or by an instrumental method. Using a human inspector for a textural evaluation is subject to some errors because of variations in perception, even when trained panelists are used and a well-defined standard is referenced. However, Katz and Labuza (1981) compared sensory results and cohesiveness values from force-deformation curves for potato chips, popcorn, puffed corn curls as well as saltines, and obtained a good agreement between the two sets of data. A similar comparison was made by van Loon et al. (2007) for the crispness of French fries comparable results were also noted. 

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