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Int J Biol Macromol ; 263(Pt 1): 130297, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38382781

RESUMEN

In this study, we have successfully produced a corn starch-based composite film through the casting method, formulated with clove essential oil nanoemulsion (NCEO) and corn starch. The physical and chemical changes of the composite films were investigated at various concentrations (10 %, 20 % and 40 %) of NCEO. Furthermore, the non-contact preservation effects of the composite films on bread during 15-day storage were also examined in this study. As the concentration of NCEO increased, the composite films presented a gradual thinning, roughening, and yellowing in appearance. Following this, the water content, water vapor permeability rate, and elongation at break of the films decreased, while their hydrophobicity, tensile strength, antioxidant and antimicrobial activity increased accordingly. Through FT-IR, X-ray diffraction and thermal gravimetric analysis, it was demonstrated that NCEO has strong compatibility with corn starch. Additionally, the indices' analysis indicated that utilizing the composite film incorporating 40 % NCEO can significantly boost the shelf life and quality of bread. Moreover, it was revealed that application of the non-contact treatment with composite film could potentially contribute certain preservation effects towards bread. In light of these findings, the composite film with non-contact treatment exhibits potential as an effective, safe, and sustainable preservation technique for grain products.


Asunto(s)
Aceites Volátiles , Syzygium , Aceites Volátiles/farmacología , Aceites Volátiles/química , Aceite de Clavo/farmacología , Aceite de Clavo/química , Almidón/química , Espectroscopía Infrarroja por Transformada de Fourier , Pan , Permeabilidad , Embalaje de Alimentos
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