Biopolymer-based antimicrobial nanocomposite materials for food packaging and preservation

Priyadarshi, Ruchir; Ghosh, Tabli; Roy, Swarup; Rhim, Jong-Whan

doi:10.1016/b978-0-323-90044-7.00003-3

Cited by 3 publications

(1 citation statement)

References 95 publications

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“…Numerous studies have demonstrated the efficacy of biopolymers in food packaging applications, showcasing impressive film-forming properties that are crucial for preserving food quality and enhancing their shelf lives [5]. Interestingly, biopolymers often possess inherent antimicrobial properties, which enhance food safety and minimize the risk of contamination [6].…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterisation of polyvinyl alcohol/glycerol blend thin films for sustainable flexibility

Jamali,

Shaikh,

Dad Chandio

2024

Mater. Res. Express

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Petroleum-based polymers pose significant environmental challenges, prompting researchers to seek alternatives for decades. The foremost solution to replace petroleum-based packaging lies in bio-based polymers that can degrade with water, soil and the environment. The most common and economical bio-based polymer till to date is polyvinyl alcohol (PVA) but has a limitation of brittleness. The primary objective of this study is to enhance mechanical flexibility, transparency and barrier properties by incorporating glycerol (G) as a plasticiser in a Polyvinyl alcohol (PVA) matrix. The PVA-G blends thin film were prepared through a solution casting processing route with glycerol concentrations varying up to 5%. These modified thin films exhibited exceptional mechanical flexibility, and good optical properties by boasting a transmittance rate exceeding 90%. Compared to pure PVA thin films, the modified versions (PVA-G) demonstrated a significant increase in their water barrier capabilities. Remarkably, the incorporation of 5% glycerol led to a substantial increase in biodegradability, and flexibility, overcoming the brittleness commonly associated with pure PVA thin films. Furthermore, the mechanical properties of the modified thin films exceeded those of pure PVA, indicating an overall enhancement in mechanical performance and tensile strength. The prepared thin films unveil exciting possibilities for utilising these flexible PVA thin films across diverse applications, including flexible food packaging, membranes, biomedical materials, and other industries that require adaptable and pliable materials.

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Section: Introductionmentioning

confidence: 99%

Preparation and characterisation of polyvinyl alcohol/glycerol blend thin films for sustainable flexibility

Jamali,

Shaikh,

Dad Chandio

2024

Mater. Res. Express

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Innovative application of laccase enzyme in food packaging

Alizadeh Sani,

Priyadarshi,

Zhang

et al. 2024

Trends in Food Science & Technology

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Poly(vinyl alcohol)/Pullulan/NaCl Conductive Hydrogels with High Strength and Sensitivity for Wearable Strain Sensors

Qing,

Liu,

Katsaounis

et al. 2024

ACS Appl. Polym. Mater.

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Ionic conductive hydrogels have emerged as promising candidates for wearable sensors. However, it is still challenging to fabricate hydrogels simultaneously with a balanced mechanical strength, ionic conductivity, and sensitivity. In this work, Poly(vinyl alcohol) (PVA)/Pullulan/Sodium chloride (NaCl) ionic conductive hydrogels were prepared by soaking frozen−thawed PVA/Pullulan hydrogels in NaCl solution to obtain the balanced properties. Due to the synergy of the semiinterpenetrating network and salting-out effect, the hydrogels exhibited a large tensile strength of 2.72 MPa. Besides, the hydrogels had a high ionic conductivity (up to 10.44 S/m) and good sensitivity (gauge factor up to 5.98). The hydrogel was assembled as a strain sensor for the detection of human joint movement. Besides, hydrogel sensors can provide efficient information transmission through the Morse code. The presented PVA/Pullulan/NaCl hydrogels have suggested promising prospects for wearable sensors.

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Biopolymer-based antimicrobial nanocomposite materials for food packaging and preservation

Cited by 3 publications

References 95 publications

Preparation and characterisation of polyvinyl alcohol/glycerol blend thin films for sustainable flexibility

Preparation and characterisation of polyvinyl alcohol/glycerol blend thin films for sustainable flexibility

Innovative application of laccase enzyme in food packaging

Poly(vinyl alcohol)/Pullulan/NaCl Conductive Hydrogels with High Strength and Sensitivity for Wearable Strain Sensors

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