<b>Chemometric tools applied to the development and proximal and sensory characterization of chocolate cakes containing chia and azuki
DOI:
https://doi.org/10.4025/actascitechnol.v36i3.19298Palavras-chave:
Salvia hispanica, L., Vigna angularis, gluten-free food, response surface methodology, principal components analysisResumo
A 22 full factorial design (two factors at two levels) with duplicate was performed to investigate the influence of the factors percentage of chia and percentage of azuki added to gluten-free chocolate cake on the proximal composition, energy and sensory aspects. Partially defatted chia flour was used in the formulations. Both factors were significant and an increase in their value contributed positively to the measured responses. The percentage of chia was the factor that most contributed to the majority of the responses, except for the nitrogen free extract (nifext). The percentage of azuki did not significantly affect cake moisture and energy. Principal component analysis distinguished samples with the highest content of chia mainly for the responses lipids and crude protein, and these formulations had the optimal point in response surfaces. The models for the sensory attributes were not significant, and multivariate analysis showed that formulations with the lowest percentage of chia and azuki had characteristics similar to control assays.
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