Preparation and characterization of chitosan-based bioactive films incorporating Moringa oleifera leaves extract

Chan-Matú, Daniel I.; Toledo-López, Víctor; Vargas, María; Rincón-Arriaga, Susana; Rodríguez-Félix, Armida; Madera-Santana, Tomás J.

doi:10.1007/s11694-021-01055-w

Cited by 21 publications

(4 citation statements)

References 45 publications

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“…Higher than 10.74 and 11.48% (Valdez-Solana et al, 2015) and similar to 22.05% of Chan-Matú et al (2020), 22.42% of Sánchez-Machado et al (2010 and 22.8% Owon et al (2021). Although some accessions exceeded 20% protein, they were lower than the 24.90-30.36% of Pérez-Ángel et al (2020), 25.29% of Shih et al (2011), 26.9% of Díaz-Fuentes, (2019 and 32.06% of Mbailao et al (2014).…”

Section: Proteinmentioning

confidence: 75%

Chemical composition of twelve accessions of Moringa oleifera Lam. grown in Mexico.

Ruiz-Hernández¹,

Hernández-Rodríguez

Pérez-Vázquez

et al. 2022

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Objective: The objective was to evaluate the growth and proximal analysis of twelve accessions of Moringa oleifera Lam. grown in Mexico. Design/ Methodology/ Approach: The seeds were collected in Veracruz, Oaxaca, Guerrero, Chiapas, and Yucatan. The seeds were sown in a nursery and transplanted in the field in a completely randomized block experimental design. Height, basal diameter, and the number of branches were recorded, and leaves were collected for proximal analysis determination. Results: Significant statistical differences (P< 0.05) were identified among the accessions based on tree height, basal diameter, number of branches, moisture content, ash, protein, and fat contents. Study limitations/implications: Accessions with high growth rates and nutritional characteristics can be selected to establish low-cost food banks. Result / Finding / Conclusion: The accessions from Chiapas (C1 and C2) were superior to the others in tree height, basal diameter and number of branches, protein, and fat contents.

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Section: Proteinmentioning

confidence: 75%

Chemical composition of twelve accessions of Moringa oleifera Lam. grown in Mexico.

Ruiz-Hernández¹,

Hernández-Rodríguez

Pérez-Vázquez

et al. 2022

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“…34 Acid treatment caused polymer chains to hydrolyze, lowering the average molecular weight of linear chains. 35 These properties are required for the easy handling of the starch suspension in the development of starch films. [36][37][38]…”

Section: Mechanical Propertiesmentioning

confidence: 99%

Organic Acids Modified Starch–CMC Based Biodegradable Film: Antibacterial Activity, Morphological, Structural, Thermal, and Crystalline Properties

Kaur¹,

Alam²,

Singh³

et al. 2023

J. Pure Appl. Microbiol.

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A novel organic acid-modified starch and carboxymethyl cellulose (CMC) based films plasticized with glycerol were prepared from unconventional tikhur starch (Curcuma angustifolia) by solution casting. Wet milling was used in the laboratory to extract starch from the tikhur rhizome. Carboxymethyl cellulose, at a concentration of (0.2 g−1 starch dry basis) was blended with the starch to improve its film-forming properties. Three different treatments with varying organic acids (lactic, citric, and acetic acid) with a concentration of 5% w/w of starch (2 ppm) in a film-forming solution were given. The effect of organic acid incorporation on the antibacterial, morphological, structural, thermal, and crystalline properties of developed films was studied. The minimum inhibitory concentration values of the three organic acids against gram-negative (E. coli) and gram-positive (S. aureus) bacteria were measured using the tube dilution method. The MIC results revealed that lactic acid and citric acid are effective against both gram-negative and gram-positive bacteria, while acetic acid showed more effectiveness against gram-negative bacteria (E. coli). MBC results revealed that organic acids have potent bactericidal activity. Citric acid resulted in higher inhibition for gram-positive bacteria (S. aureus) compared to gram-negative bacteria (E. coli.). While acetic acid showed higher inhibition for E. coli. than S. aureus. Lactic acid displayed similar inhibition against both S. aureus and E. coli. Among different organic acids, lactic acid incorporation resulted in a more homogeneous, transparent, and thermally stable film. As evidenced by the micrographs, the lactic acid incorporation resulted in a compact film structure without any visible cracks. While X-ray diffraction showed an increase in crystalline properties due to organic acid modification. In this study, it was indicated that modification with organic acids (polycarboxylic acids) effectively improved the overall properties of developed films depending on the type of organic acid used. The developed films have the potential to replace harmful synthetic films in food packaging.

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“…The antioxidant action of bioactive films relies on the release of bioactive compounds such as organic acids, essential oils, fruit and plant extracts, etc., from the package to the food matrix. These antioxidants can be package-incorporated [ 10 , 11 ] or encapsulated by another substance [ 12 , 13 , 14 ] to achieve controlled release. Edible bioactive films are also available [ 15 , 16 , 17 ].…”

Section: Introductionmentioning

confidence: 99%

Chitin Nanocrystals Provide Antioxidant Activity to Polylactic Acid Films

2022

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About 1/3rd of produced food goes to waste, and amongst others, advanced packaging concepts need to be developed to prevent this from happening. Here, we target the antioxidative functionality of food packaging to thus address food oxidation without the need for the addition of antioxidants to the food product, which is not desirable from a consumer point of view. Chitin nanocrystals (ChNC) have been shown to be promising bio-fillers for improving the mechanical strength of biodegradable plastics, but their potential as active components in plastic films is rather unexplored. In the current study, we investigate the antioxidant activity of chitin nanocrystals as such and as part of polylactic acid (PLA) films. This investigation was conducted using DPPH (1,1-diphenyl-2-picrylhydrazyl) radical scavenging activity. Chitin nanocrystals produced via acid hydrolysis showed five times higher activity compared to crude chitin powder. When using these crystals as part of a polylactic acid film (either inside or on top), in both scenarios, antioxidant activity was found, but the effect was considerably greater when the particles were at the surface of the film. This is an important proof of the principle that it is possible to create biodegradable plastics with additional functionality through the addition of ChNC.

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Preparation and characterization of chitosan-based bioactive films incorporating Moringa oleifera leaves extract

Cited by 21 publications

References 45 publications

Chemical composition of twelve accessions of Moringa oleifera Lam. grown in Mexico.

Chemical composition of twelve accessions of Moringa oleifera Lam. grown in Mexico.

Organic Acids Modified Starch–CMC Based Biodegradable Film: Antibacterial Activity, Morphological, Structural, Thermal, and Crystalline Properties

Chitin Nanocrystals Provide Antioxidant Activity to Polylactic Acid Films

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