Desarrollo de un recubrimiento comestible a base de quinoa y quitosano reforzado con aceites esenciales de hierba limón y canela encapsulados en partículas de sílice mesoporosa
DOI:
https://doi.org/10.29105/idcyta.v8i1.22Keywords:
Edible coating, cinnamon, lemongrass, essential oil, quinoa, mesoporous silicaAbstract
Fungi spoilage is common problem in the bakery industry, which may be prevented by using food additives, but their use has been questioned. Natural antifungal agents could be an alternative to avoid spoilage in bread, when applied as coating to extended its shelf life. The aim of this work was to design and characterize an edible coating based on chitosan (QT), quinoa protein (QU) and a mixture of cinnamon (CA) and lemongrass (HL) essential oils to evaluate its performance on sourdough bread. A 22 factorial design using QT:QU ratios of (1:4 and 1:9 w/w) and steam distilled essential oils (1:1 and 1:2 HL:CA, v/v). The physicochemical, mechanical, structural and antifungal properties of the films were evaluated. The treatment at 1:4 ratio (QT:QU) inhibited 63% of the radial growth of Rhizopus stolonifer, showed small particle size 2.81±0.13 µm, polydispersity index 0.77±1.4, and ζ potential of 26.4±1.3 mV. Treatments showed similar mechanical properties, the film using 1:4 weight ratio showed more homogeneous structure. It is expected that the designed edible coating provides a positive impact in the product’s shelf life.
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Copyright (c) 2023 P.I. Bautista-Espinoza, P. Di Pierro, S.L. Amaya-Llano, E. Mares-Mares, B.E. García-Almendarez, G. De la Cruz-Velázquez, C. Regalado-González
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