Nopal cladode as a novel reinforcing and antioxidant agent for starch-based films: A comparison with lignin and propolis extract

Farias, Patrícia Marques de; Vasconcelos, Lucicléia Barros de; Ferreira, Márcia Eliana da Silva; Filho, Elenilson G. Alves; Freitas, Victor Augusto Araújo de; Tapia‐Blácido, Delia Rita

doi:10.1016/j.ijbiomac.2021.04.143

Cited by 22 publications

(17 citation statements)

References 97 publications

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“…As a result, the hydrophilicity of the bioplastic films was reduced due to the incorporation of LNPs. Similar findings were also reported by previous studies, where the use of lignin as filler in soy protein [ 37 ] and cassava starch [ 38 ] could contribute to a reduction of the bioplastic films’ hydrophilicity.…”

Section: Resultssupporting

confidence: 91%

Enhanced Functional Properties of Bioplastic Films Using Lignin Nanoparticles from Oil Palm-Processing Residue

et al. 2022

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The development of bioplastic materials that are biobased and/or degradable is commonly presented as an alleviating alternative, offering sustainable and eco-friendly properties over conventional petroleum-derived plastics. However, the hydrophobicity, water barrier, and antimicrobial properties of bioplastics have hindered their utilization in packaging applications. In this study, lignin nanoparticles (LNPs) with a purification process were used in different loadings as enhancements in a Kappaphycus alvarezii matrix to reduce the hydrophilic nature and improve antibacterial properties of the matrix and compared with unpurified LNPs. The influence of the incorporation of LNPs on functional properties of bioplastic films, such as morphology, surface roughness, structure, hydrophobicity, water barrier, antimicrobial, and biodegradability, was studied and found to be remarkably enhanced. Bioplastic film containing 5% purified LNPs showed the optimum enhancement in almost all of the ultimate performances. The enhancement is related to strong interfacial interaction between the LNPs and matrix, resulting in high compatibility of films. Bioplastic films could have additional advantages and provide breakthroughs in packaging materials for a wide range of applications.

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Section: Resultssupporting

confidence: 91%

Enhanced Functional Properties of Bioplastic Films Using Lignin Nanoparticles from Oil Palm-Processing Residue

et al. 2022

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“…The cladodes were cut into cubes, dried in an oven with forced air circulation (60 C/12 h, Quimis, Q314M292, Brazil), ground, and sieved through 120-mesh sieve, to obtain the nopal cladode flour (NC). The average NC particle size was 166 μm, as reported in De Farias et al 22 The cassava starch was acquired in Ribeirão Preto (São Paulo, Brazil) and contained 18 wt% amylose and 82 wt% amylopectin.…”

Section: Methodsmentioning

confidence: 66%

“…20,21 Our research group has attempted to use whole NC in the flour form (NC) to obtain films, but film formation did not occur because NC have high fiber content. 22 Later, our group investigated NC as an additive in cassava starch films, but a chemical treatment was necessary to improve NC incorporation into the starch matrix. 22,23 In this context, the objective of this work was evaluate how NC treated at pH 7, 8, 9, 10, 11, or 12 performs as additive in cassava starch composite film.…”

Section: Introductionmentioning

confidence: 99%

“…22 Later, our group investigated NC as an additive in cassava starch films, but a chemical treatment was necessary to improve NC incorporation into the starch matrix. 22,23 In this context, the objective of this work was evaluate how NC treated at pH 7, 8, 9, 10, 11, or 12 performs as additive in cassava starch composite film. Therefore, the physical, mechanical, and bioactive properties of composite cassava starch/NC films were determined.…”

Section: Introductionmentioning

confidence: 99%

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Use of chemically treated nopal cladodes as additive in the cassava starch composite films

De Farias,

De Vasconcelos,

Ferreira

et al. 2023

Vinyl Additive Technology

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Nopal cladodes (NC) are considered a source of fibers and bioactive compounds with high antioxidant properties, so their application as biofiller and bioactive agent in starch films has generated interest. To improve NC incorporation into starch film, NC was chemically treated at different pH values (7, 8, 9, 10, 11, and 12). The physical, mechanical, and active properties of cassava starch/NC composite films were evaluated. Increasing the alkaline treatment of NC, the composite films were more homogeneous, less hydrophilic, more elongable and less mechanically resistant. Thus, alkaline NC treatment at pH 12 yielded the most elongable (72.3%) and hydrophobic (contact angle = 71.8°), but the least mechanically resistant (1.7 MPa) cassava starch/NC film. Meanwhile, alkaline treatment of NC at pH 11 provided films with better functional properties and antioxidant properties, as measured by DPPH• (74.6%) or ABTS•+ (16.6 μm Trolox/g of film) radical scavenging, as well as hydrophobic surface (64.6°) and improved mechanical resistance (2.5 MPa). Nevertheless, the composite cassava starch/NC films obtained here did not exhibit antimicrobial activity. In conclusion, chemical treatment improved the performance of NC to be used as an additive to produce starch composite films less hydrophilic and with antioxidant property that can help to preserve foods sensitive to oxidation (e.g., nuts and dehydrated fruits).Highlights NC flour contains phenolic compounds, protein, lipids, carbohydrate and fibers. Compounds removed in the NC treatment affected the properties of films. Alkaline NC treatment contributed to increase the elongation of composite film. Alkaline NC treatment decreased the hydrophilicity of composite film. NC treated at pH 11 yielded films with suitable properties for food packaging.

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“…In addition, the hydrophobic nature of curcumin influences the water solubility of the films. Other studies also showed that the addition of an active agent reduced the water solubility, as in [34], [35], [37].…”

Section: Solubility In Watermentioning

confidence: 95%

Biodegradation, Water Sorption Isotherms and Thermodynamic Properties of Extruded Packaging Composed of Cassava Starch With Tomato Peel

Cotta

Ferreira

Borges

et al. 2023

Preprint

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Scientists are developing new technologies for biodegradable active packaging made from natural polymers and antioxidant agents as a more sustainable alternative to conventional packaging made from fossil fuels. In this study, the biodegradation of the films was evaluated using techniques such as Fourier transform infrared spectroscopy (FTIR), thermogravimetry (TG), visual and morphological analysis using scanning electron microscopy (SEM). Water sorption isotherms and thermodynamic parameters were analyzed at different temperatures (5 °C, 15 °C, and 25 °C) and relative humidities until the samples reached a constant weight. The results showed changes in the morphology, color, and mass of the cassava starch films with tomato peel due to biodegradation. FTIR revealed structural changes in the films, while TG/DTG curves did not show significant differences over time. The addition of tomato peel to the polymer matrix resulted in lower water solubility. The Guggenheim-Anderson-de Boer (GAB) model provided the best fit for the water sorption isotherms. The monolayer moisture content (Xm) increased with temperature, indicating the availability of active sites for water sorption in the material. Thermodynamic analyses indicated that lower moisture content corresponded to more active sorption sites, and the sorbed water molecules exhibited greater order. In conclusion, biodegradable active packaging offers an environmentally friendly alternative as it decomposes more rapidly than conventional packaging made from fossil-derived materials. The sorption isotherms demonstrated that the adsorption in the packaging materials is controlled by entropy, emphasizing the importance of the number of available active sites for binding rather than the chemical composition of the film.

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Nopal cladode as a novel reinforcing and antioxidant agent for starch-based films: A comparison with lignin and propolis extract

Cited by 22 publications

References 97 publications

Enhanced Functional Properties of Bioplastic Films Using Lignin Nanoparticles from Oil Palm-Processing Residue

Enhanced Functional Properties of Bioplastic Films Using Lignin Nanoparticles from Oil Palm-Processing Residue

Use of chemically treated nopal cladodes as additive in the cassava starch composite films

Biodegradation, Water Sorption Isotherms and Thermodynamic Properties of Extruded Packaging Composed of Cassava Starch With Tomato Peel

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