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Las-Casas B, Arantes V. Exploring xylan removal via enzymatic post-treatment to tailor the properties of cellulose nanofibrils for packaging film applications. Int J Biol Macromol 2024; 274:133325. [PMID: 38908627 DOI: 10.1016/j.ijbiomac.2024.133325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Revised: 06/14/2024] [Accepted: 06/19/2024] [Indexed: 06/24/2024]
Abstract
Hemicellulose plays a key role in both the production of cellulose nanofibrils (CNF) and their properties as suspensions and films. While the use of enzymatic and chemical pre-treatments for tailoring hemicellulose levels is well-established, post-treatment methods using enzymes remain relatively underexplored and hold significant promise for modifying CNF film properties. This study aimed to investigate the effects of enzymatic xylan removal on the properties of CNF film for packaging applications. The enzymatic post-treatment was carried out using an enzymatic cocktail enriched with endoxylanase (EX). The EX post-treated-CNFs were characterized by LALLS, XRD, and FEG-SEM, while their films were characterized in terms of physical, morphological, optical, thermal, mechanical, and barrier properties. Employing varying levels of EX facilitated the hydrolysis of 8 to 35 % of xylan, yielding CNFs with different xylan contents. Xylan was found to be vital for the stability of CNF suspensions, as its removal led to the agglomeration of nanofibrils. Nanostructures with preserved crystalline structures and different morphologies, including nanofibers, nanorods, and their hybrids were observed. The EX post-treatment contributed to a smoother film surface, improved thermostability, and better moisture barrier properties. However, as the xylan content decreased, the films became lighter (lower grammage), less strong, and more brittle. Thus, the enzymatic removal of xylan enabled the customization of CNF films' performance without affecting the inherent crystalline structure, resulting in materials with diverse functionalities that could be explored for use in packaging films.
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Affiliation(s)
- Bruno Las-Casas
- Applied Bionanotechnology Laboratory, Department of Biotechnology, University of São Paulo, - Lorena School of Engineering, Lorena, São Paulo 12602-810, Brazil
| | - Valdeir Arantes
- Applied Bionanotechnology Laboratory, Department of Biotechnology, University of São Paulo, - Lorena School of Engineering, Lorena, São Paulo 12602-810, Brazil.
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Correlating in silico elucidation of interactions between hydroxybenzoic acids and casein with in vitro release kinetics for designing food packaging. Food Packag Shelf Life 2022. [DOI: 10.1016/j.fpsl.2022.100859] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Miele NA, Volpe S, Torrieri E, Cavella S. Improving physical properties of sodium caseinate based coating with the optimal formulation: Effect on strawberries’ respiration and transpiration rates. J FOOD ENG 2022. [DOI: 10.1016/j.jfoodeng.2022.111123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Hoffmann TG, Ronzoni AF, da Silva DL, Bertoli SL, de Souza CK. Impact of household refrigeration parameters on postharvest quality of fresh food produce. J FOOD ENG 2021. [DOI: 10.1016/j.jfoodeng.2021.110641] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Rincón E, Serrano L, Balu AM, Aguilar JJ, Luque R, García A. Effect of Bay Leaves Essential Oil Concentration on the Properties of Biodegradable Carboxymethyl Cellulose-Based Edible Films. MATERIALS 2019; 12:ma12152356. [PMID: 31344962 PMCID: PMC6695984 DOI: 10.3390/ma12152356] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 07/18/2019] [Accepted: 07/22/2019] [Indexed: 12/14/2022]
Abstract
Films containing bay leaves essential oils (BEOs) were prepared and evaluated for edible packaging applications. The BEOs were extracted by the Soxhlet method, using ethanol or methanol as organic solvent. Then, films were prepared by “solvent casting” technique using carboxymethyl cellulose (CMC), with different concentrations for the as-obtained BEOs (from 1% to 30% wt.). The resulting films were characterized to evaluate their physical (thickness, moisture content, water solubility and water vapor permeability), optical (transparency and UV-light barrier), mechanical (tensile strength and elongation at break), antioxidant and antimicrobiological properties Attractive films were obtained for food active packaging applications, as they presented a high antioxidant activity (up to 99%) and total phenolic content, and good barrier properties against water vapor (50% improved of CMC) in the case of CMC-film containing 15% wt. ethanolic extract. Related to optical properties, UV-light barrier effect was increased (almost 100% of protection) avoiding typical lipids oxidation in food systems. High water solubility (93%) was also found, ensuring also their biodegradability. Moreover, it was demonstrated that developed films inhibit microorganisms’ growth (Escherichia coli and Candida glabrata), this avoiding an early food oxidation.
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Affiliation(s)
- Esther Rincón
- Departamento de Química Orgánica, Universidad de Córdoba, Campus de Rabanales, Edificio Marie Curie (C-3), CTRA. Nnal. IV-A, Km 396, E-14014 Córdoba, Spain
| | - Luis Serrano
- Departamento de Química Inorgánica e Ingeniería Química, Universidad de Córdoba, Campus de Rabanales, Edificio Marie Curie (C-3), CTRA. Nnal. IV-A, Km 396, E-14014 Córdoba, Spain
| | - Alina M Balu
- Departamento de Química Orgánica, Universidad de Córdoba, Campus de Rabanales, Edificio Marie Curie (C-3), CTRA. Nnal. IV-A, Km 396, E-14014 Córdoba, Spain
| | - José J Aguilar
- Departamento de Microbiología, Universidad de Córdoba, Campus de Rabanales, Edificio Severo Ochoa (C-6), CTRA. Nnal. IV-A, Km 396, E-14014 Córdoba, Spain
| | - Rafael Luque
- Departamento de Química Orgánica, Universidad de Córdoba, Campus de Rabanales, Edificio Marie Curie (C-3), CTRA. Nnal. IV-A, Km 396, E-14014 Córdoba, Spain.
- Scientific Center for Molecular Design and Synthesis of Innovative Compounds for the Medical Industry, People's Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya str., 117198 Moscow, Russia.
| | - Araceli García
- Departamento de Química Orgánica, Universidad de Córdoba, Campus de Rabanales, Edificio Marie Curie (C-3), CTRA. Nnal. IV-A, Km 396, E-14014 Córdoba, Spain.
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Madonna M, Caleb OJ, Sivakumar D, Mahajan PV. Understanding the physiological response of fresh-cut cauliflower for developing a suitable packaging system. Food Packag Shelf Life 2018. [DOI: 10.1016/j.fpsl.2018.07.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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