Fabrication and characterization of chitosan/gelatin films loaded with microcapsules of Pulicaria jaubertii extract

Al‐Maqtari, Qais Ali; Al‐Gheethi, Adel; Ghaleb, Abduljalil D.S.; Mahdi, Amer Ali; Al‐Ansi, Waleed; Noman, Abeer Essam; Al‐Adeeb, Abdulqader; Odjo, Aboudou Kabirou Olatoundé; Du, Yuchen; Wei, Minping; Yao, Weirong

doi:10.1016/j.foodhyd.2022.107624

Cited by 55 publications

(9 citation statements)

References 59 publications

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“…This result was attributed to chemical nature of gelatin, which promoted interactions between surface adsorption sites and water molecules. A similar result was obtained in the study of Al-Maqtari et al [ 24 ] for chitosan/gelatin films incorporating Pulicaria jaubertii extract. The composite films prepared with higher ratios of chitosan showed significantly ( p < 0.05) lower solubility values.…”

Section: Resultssupporting

confidence: 88%

Characterization of Composite Film of Gelatin and Squid Pen Chitosan Obtained by High Hydrostatic Pressure

Huang

Wang

2023

Polymers

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In the present study, gelatin-based films incorporating squid pen chitosan obtained by high hydrostatic pressure (HHP chitosan) at varying proportions were prepared and their properties were compared with films containing untreated chitosan. The resulting films were characterized by analyzing the physical, morphological, mechanical and barrier properties. The addition of different ratios of HHP chitosan to the gelatin-based film yielded significant improvements in mechanical and moisture barrier properties. The reason for this might be that HHP chitosan contributed to a regular and dense microstructure of the composite films due to forming a three-dimensional network structure in gelatin-based films with enhanced intermolecular interactions. The FTIR spectra showed no new chemical bond formed by incorporating HHP chitosan into gelatin-based film. The SEM micrographs showed that the gelatin-based film fabricated with three types of chitosan had a homogeneous surface morphology, indicating good compatibility of the materials. Compared to the gelatin-based films containing untreated chitosan, films containing HHP chitosan significantly delayed oxidative deterioration in oil during storage. Therefore, the chitosan obtained by HHP treatment could have a potential application in edible gelatin-based films as packaging materials.

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Section: Resultssupporting

confidence: 88%

Characterization of Composite Film of Gelatin and Squid Pen Chitosan Obtained by High Hydrostatic Pressure

Huang

Wang

2023

Polymers

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“…In Figure 2a−c, it can be seen that the Pyr@MCC microcapsules (black particles in Figure 2b) were uniformly distributed in the PM/ PVA/ST film without apparent aggregation, and the Pyr@ MCC microcapsules were tightly embedded inside the film, indicating that the microcapsules have good compatibility with the film. 30 In addition, the cross-sectional SEM of the film demonstrated that the thickness of the PM/PVA/ST film was about 70 μm, consistent with the thickness of the film measured using vernier calipers.…”

Section: ■ Results and Discussionsupporting

confidence: 78%

Novel Biodegradable Composite Mulch Film Embedded with Temperature-Responsive Pesticide Microcapsules for Durable Control of Phytophthora Root Rot on Soybean

Xie

Xiong

Fang

et al. 2023

ACS Sustainable Chem. Eng.

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Soil-borne diseases have caused substantial economic losses to agricultural production due to their rapid onset and few means of control. Here, pyraclostrobin (Pyr) microcapsules (Pyr@MCC) with temperature-responsive pesticide release capability were prepared using temperature-sensitive phase-change materials as capsule cores. Then, the Pyr@MCC was organically combined with poly(vinyl alcohol)-starch film (PVA/ST) to prepare a composite mulch film (PM/PVA/ST) with intelligent control of pesticide release rate according to external temperature change, which realized sustainable and efficient control of Phytophthora root rot (PRR) on soybean. Tensile tests showed that the PM/PVA/ST film exhibited good tensile deformation ability (134.9%) and high tensile stress (18.0 Mpa). The water vapor transmission rate test showed that the PM/PVA/ST film exhibited good barrier performance to H2O, CO2, and O2. The release test data proved that the PM/PVA/ST film could slowly release Pyr at lower temperatures (15 °C) and release Pyr rapidly at higher temperatures (35 °C), corresponding to the high temperature at which the Phytophthora root rot outbreak. In vitro antifungal and pot experiments showed that the PM/PVA/ST film had a good control efficiency on Fusarium spp. These results show that the functional pesticide microcapsules loaded onto the film have good application potential for controlling PRR on soybean. In general, this composite mulch film provided some innovative research ideas for optimizing the pesticide delivery pathway and thereby efficiently controlling soil-borne pests and diseases, reducing the frequency and amount of pesticide use and minimizing white pollution from traditional plastic mulch films.

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“…The improvement of water vapor barrier performances might derive from the grafting of syringaldehyde and the cross-linking of SP, CaP, and lignin, since the strong interaction could hinder water vapor mobility. The SPCL plastic has a stronger water vapor barrier than many common food packaging polymers such as konjac glucomannan, 44 starch, 45 and chitosan, 46 making it suitable for packaging foods such as fruits and vegetables. The hydrated elastomer that results from soaking the SPCL plastic in water for at least 24 h is named SPCL elastomer, which is more flexible than SPCL plastics (Figure 4f).…”

Section: Preparation Of Cap Oligomers and Spcl Plasticsmentioning

confidence: 99%

Sustainable Supramolecular Plastics Usable Under High Humidity: Cross-Linking Strategy Enabled by Hydrogen Bonding and Coordination Interactions

Li,

Zhe,

et al. 2024

ACS Sustainable Chem. Eng.

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It remains a great challenge to prepare sustainable plastics with good mechanical properties, water resistance, and recyclability. Herein, an organic−inorganic hybrid network crosslinked by reversible and dynamic bonds is proposed. Calcium phosphate oligomers as inorganic components are polymerized into ordered nanochains under the regulation of syringaldehyde-grafted poly(vinyl alcohol) and lignin. Density functional theory simulations reveal the presence of high-density hydrogen and coordination bonds in the structure, which can be preferentially broken as sacrificial bonds to dissipate energy, resulting in the tunable and robust mechanical properties of the supramolecular plastics. Even at 70% relative humidity, the plastics exhibit good mechanical performances with a tensile strength of 59 MPa and a toughness of 103 MJ/m 3 , which are superior to some common bioplastics and reported moisture-resistant plastics. The water molecules break only a small portion of the sacrificial bonds, so the plastics show good water resistance and form stable and tough elastomers when immersed in water. Impressively, these robust plastics exhibit reprocessing potential without losing their original mechanical performance. Also, the plastics exhibit 99.9% UV-shielding efficiency and harsh environmental durability. With these advantageous features, this work unveils a new avenue for the development of sustainable and promising polymeric materials.

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Fabrication and characterization of chitosan/gelatin films loaded with microcapsules of Pulicaria jaubertii extract

Cited by 55 publications

References 59 publications

Characterization of Composite Film of Gelatin and Squid Pen Chitosan Obtained by High Hydrostatic Pressure

Characterization of Composite Film of Gelatin and Squid Pen Chitosan Obtained by High Hydrostatic Pressure

Novel Biodegradable Composite Mulch Film Embedded with Temperature-Responsive Pesticide Microcapsules for Durable Control of Phytophthora Root Rot on Soybean

Sustainable Supramolecular Plastics Usable Under High Humidity: Cross-Linking Strategy Enabled by Hydrogen Bonding and Coordination Interactions

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