Characterization of nanostructured chitosan-PVA films and their effects on blueberries during storage

IF 7.2 Q1 FOOD SCIENCE & TECHNOLOGY

Future Foods Pub Date : 2025-02-11 DOI:10.1016/j.fufo.2025.100571

Zormy Nacary Correa-Pacheco , Silvia Bautista-Baños , Mónica Hernández-López , Daniel Tapia-Maruri , José Luis Jiménez-Pérez , Pedro Ortega-Gudiño , Olga Lidia Cruz-Miranda

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引用次数: 0

Abstract

The use of nanotechnology in coatings has become a topic of growing interest. In this work, the effect of adding chitosan nanoparticles (NP) into chitosan/polyvinyl alcohol (PVA) coatings was studied. The cross-section of film micrographs obtained by scanning electron microscopy (SEM) showed a coarse surface for CS100, a smooth surface for PVA100 and blends morphology like CS100, except for the 33NP30PVA37CS and 33NP40PVA27CS films which were similar to PVA100. Fourier-transform infrared spectroscopy (FTIR) revealed interaction between the PVA and chitosan functional groups, which was reflected in the thermal and mechanical properties. The NP enhanced thermal stability and rigidity (Young´s modulus = 54.79 ± 3.94 MPa) with the highest crystallinity (52.71 %) of the films, and showing 100 % in vitro inhibition against B. cinerea for the 33NP67CS formulation. The postharvest evaluation for coated fruit showed a decrease in weight loss (< 5 %) and firmness (between 0.24–2.47 N). On the other hand, anthocyanin content increased during storage with values from 7 to 34 mg/100 g on day 8. Disease incidence was between 23 and 30 % and severity near 25 %. The nanostructured coating formulations preserve blueberry quality, making them an attractive option for sustainable food packaging.

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来源期刊

Future Foods Agricultural and Biological Sciences-Food Science

CiteScore

8.60

自引率

0.00%

发文量

审稿时长

15 weeks

期刊介绍： Future Foods is a specialized journal that is dedicated to tackling the challenges posed by climate change and the need for sustainability in the realm of food production. The journal recognizes the imperative to transform current food manufacturing and consumption practices to meet the dietary needs of a burgeoning global population while simultaneously curbing environmental degradation. The mission of Future Foods is to disseminate research that aligns with the goal of fostering the development of innovative technologies and alternative food sources to establish more sustainable food systems. The journal is committed to publishing high-quality, peer-reviewed articles that contribute to the advancement of sustainable food practices. Abstracting and indexing： Scopus Directory of Open Access Journals (DOAJ) Emerging Sources Citation Index (ESCI) SCImago Journal Rank (SJR) SNIP