Fabrication of Copper Sulfide Nanoparticles and Limonene Incorporated Pullulan/Carrageenan-Based Film with Improved Mechanical and Antibacterial Properties

Edible biopolymer (pullulan/carrageenan) based functional composite films were fabricated by the addition of copper sulfide nanoparticles (CuSNP) and D-limonene (DL). The DL and CuSNP were compatible with the pullulan/carrageenan biopolymer matrix. The addition of CuSNP significantly increased the U...

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Main Authors: Swarup Roy, Jong-Whan Rhim
Format: Article
Language:English
Published: MDPI AG 2020-11-01
Series:Polymers
Subjects:
Online Access:https://www.mdpi.com/2073-4360/12/11/2665
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author Swarup Roy
Jong-Whan Rhim
author_facet Swarup Roy
Jong-Whan Rhim
author_sort Swarup Roy
collection DOAJ
description Edible biopolymer (pullulan/carrageenan) based functional composite films were fabricated by the addition of copper sulfide nanoparticles (CuSNP) and D-limonene (DL). The DL and CuSNP were compatible with the pullulan/carrageenan biopolymer matrix. The addition of CuSNP significantly increased the UV-blocking properties without substantially reducing the transparency of the film. The addition of CuSNP improved the film’s tensile strength by 10%; however, the DL addition did not significantly influence the strength, while the combined addition of CuSNP and DL increased the strength by 15%. The addition of the fillers did not significantly affect the thermal stability of the film, but the water vapor barrier property was slightly improved. There was no significant change in the moisture content and hydrophobicity of the composite film. Besides, the composite film showed some antimicrobial activity against food-borne pathogenic bacteria. The fabricated pullulan/carrageenan-based film with antimicrobial and UV-barrier properties is likely to be used in active food packaging applications.
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spelling doaj.art-0adf0c37c2d04a9aa6e7d680adb4437f2023-11-20T20:38:55ZengMDPI AGPolymers2073-43602020-11-011211266510.3390/polym12112665Fabrication of Copper Sulfide Nanoparticles and Limonene Incorporated Pullulan/Carrageenan-Based Film with Improved Mechanical and Antibacterial PropertiesSwarup Roy0Jong-Whan Rhim1Department of Food and Nutrition, BioNanocomposite Research Institute, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, KoreaDepartment of Food and Nutrition, BioNanocomposite Research Institute, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, KoreaEdible biopolymer (pullulan/carrageenan) based functional composite films were fabricated by the addition of copper sulfide nanoparticles (CuSNP) and D-limonene (DL). The DL and CuSNP were compatible with the pullulan/carrageenan biopolymer matrix. The addition of CuSNP significantly increased the UV-blocking properties without substantially reducing the transparency of the film. The addition of CuSNP improved the film’s tensile strength by 10%; however, the DL addition did not significantly influence the strength, while the combined addition of CuSNP and DL increased the strength by 15%. The addition of the fillers did not significantly affect the thermal stability of the film, but the water vapor barrier property was slightly improved. There was no significant change in the moisture content and hydrophobicity of the composite film. Besides, the composite film showed some antimicrobial activity against food-borne pathogenic bacteria. The fabricated pullulan/carrageenan-based film with antimicrobial and UV-barrier properties is likely to be used in active food packaging applications.https://www.mdpi.com/2073-4360/12/11/2665pullulan/carrageenanCuSNPlimonenecomposite filmmechanical propertyantibacterial activity
spellingShingle Swarup Roy
Jong-Whan Rhim
Fabrication of Copper Sulfide Nanoparticles and Limonene Incorporated Pullulan/Carrageenan-Based Film with Improved Mechanical and Antibacterial Properties
Polymers
pullulan/carrageenan
CuSNP
limonene
composite film
mechanical property
antibacterial activity
title Fabrication of Copper Sulfide Nanoparticles and Limonene Incorporated Pullulan/Carrageenan-Based Film with Improved Mechanical and Antibacterial Properties
title_full Fabrication of Copper Sulfide Nanoparticles and Limonene Incorporated Pullulan/Carrageenan-Based Film with Improved Mechanical and Antibacterial Properties
title_fullStr Fabrication of Copper Sulfide Nanoparticles and Limonene Incorporated Pullulan/Carrageenan-Based Film with Improved Mechanical and Antibacterial Properties
title_full_unstemmed Fabrication of Copper Sulfide Nanoparticles and Limonene Incorporated Pullulan/Carrageenan-Based Film with Improved Mechanical and Antibacterial Properties
title_short Fabrication of Copper Sulfide Nanoparticles and Limonene Incorporated Pullulan/Carrageenan-Based Film with Improved Mechanical and Antibacterial Properties
title_sort fabrication of copper sulfide nanoparticles and limonene incorporated pullulan carrageenan based film with improved mechanical and antibacterial properties
topic pullulan/carrageenan
CuSNP
limonene
composite film
mechanical property
antibacterial activity
url https://www.mdpi.com/2073-4360/12/11/2665
work_keys_str_mv AT swaruproy fabricationofcoppersulfidenanoparticlesandlimoneneincorporatedpullulancarrageenanbasedfilmwithimprovedmechanicalandantibacterialproperties
AT jongwhanrhim fabricationofcoppersulfidenanoparticlesandlimoneneincorporatedpullulancarrageenanbasedfilmwithimprovedmechanicalandantibacterialproperties