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Application of chemometric tools in the development and sensory evaluation of gluten-free cracknel biscuits with the addition of chia seeds and turmeric powder

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Abstract

Gluten-free biscuits were developed with the addition of chia seeds (Salvia hispanica L.) and turmeric powder. An experimental design 22 were employed in the formulation optimization that promotes better sensory acceptance through acceptance test with a hedonic scale of 9 points. For characterization purposes, the centesimal composition from chia seeds and the turmeric powder were determined. The biscuits were produced from an optimized formulation with and without chia seeds and turmeric powder with microbiological results safe for consumption by evaluation Salmonella sp., positive coagulase Staphylococcus, and Coliforms to 45 °C. The Principal Components Analysis (PCA) was used in the investigation of sensory results (color, flavor, texture, smell, appearance, overall impression). It was also considered the habits of consuming food with/without gluten, purchase intentions, including age and gender. The results show that there is no distinction between the biscuits with the addition of chia seeds and turmeric powder. A statistical test using the confidence ellipse confirms that there no significant difference, at a 95% confidence level, among the sensory results for the biscuits with and without chia seeds and turmeric powder.

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Acknowledgments

The authors’ thanks CAPES (Coordenação de Aperfeiçoamento de Pessoal de Nível Superior) for fellowships to Mirian S. Laczkowski, Michel R. Baqueta, and Thays R. Gonçalves. This study was financed in part by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior—Brasil (CAPES)—Finance Code 001. P. Valderrama thanks Fundação Araucária (process 033/2019). The authors’ thanks UTFPR/Campo Mourão for the laboratory space.

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Correspondence to Makoto Matsushita or Patrícia Valderrama.

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Laczkowski, M.S., Baqueta, M.R., de Oliveira, V.M.A.T. et al. Application of chemometric tools in the development and sensory evaluation of gluten-free cracknel biscuits with the addition of chia seeds and turmeric powder. J Food Sci Technol 58, 4118–4126 (2021). https://doi.org/10.1007/s13197-020-04874-9

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  • DOI: https://doi.org/10.1007/s13197-020-04874-9

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