Abstract
For consumers, one of the basic criteria of choosing a foodstuff, apart from nutritional values, is their taste and smell. In edible insect as a novel food, these criteria are not quite decisive. The main criterion in the Western countries is the acceptability of the food. This work deals with sensory evaluation of protein and energy bars, enriched with cricket flour from American and Czech producers, and their acceptability for consumers from the Czech Republic. The sensory evaluation was done using the questionnaire survey and a simple electronic nose. The survey has shown that edible insect bars are acceptable as a new type of food for consumers in the Czech Republic. Best rated by consumers were orange and pineapple flavour bars from the Czech manufacturer. Statistically significant difference was not detected between evaluation of the bars from the American and Czech manufacturers. Also, the difference between the bars of different flavours from the Czech producer was evaluated using a simple machine - a portable electronic nose. There was not a statistically significant difference between bars of different flavours from the American manufacturer. The positive contribution of the survey is that more than 80% of consumers are willing to consume food enriched with edible insect. This fact shows a change in public attitude to these foods.
Highlights
Sensory properties are a important criterion for eating edible insect (Borkovcová et al, 2009; Adámek et al, 2017)
This work deals with sensory evaluation of protein and energy bars, enriched with cricket flour from American and Czech producers, and their acceptability for consumers from the Czech Republic
Scientific hypothesis is: Energy bars and protein bars enriched with edible insect are acceptable as novel food for consumers from the Czech Republic
Summary
Sensory properties are a important criterion for eating edible insect (Borkovcová et al, 2009; Adámek et al, 2017). While electronic noses cannot fully replace human smell, which is closely related to taste, they can be used to detect a firmly defined condition of a food, which is indicated by a certain odour. This can be used, for example, in monitoring food storage and determining its shelf life. Scientific hypothesis is: Energy bars and protein bars enriched with edible insect are acceptable as novel food for consumers from the Czech Republic. Aim of the work was to find out, if energy bars and protein bars enriched with edible insect are acceptable as novel food for consumers from the Czech Republic, if there is any consumer preference based on smell or taste, and to compare consumer evaluation with the electronic nose measurement.
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