Biodegradable films from poly (lactic acid) (PLA)-chitosan-silver nanoparticles : preparation and characterization

The biodegradable food packaging films were produced from biopolymers poly (lactic acid) (PLA), chitosan, and silver nanoparticles. The objectives of this research are to produce the biodegradable food packaging films from biopolymers poly (lactic acid) (PLA), chitosan, and silver nanoparticles and...

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Main Author: Nur Bashirah, Azli
Format: Undergraduates Project Papers
Language:English
Published: 2013
Subjects:
Online Access:http://umpir.ump.edu.my/id/eprint/7181/
http://umpir.ump.edu.my/id/eprint/7181/
http://umpir.ump.edu.my/id/eprint/7181/1/BIODEGRADABLE_FILMS_FROM_POLY_%28LACTIC_ACID%29_%28PLA%29.pdf
id ump-7181
recordtype eprints
spelling ump-71812015-03-03T09:34:39Z http://umpir.ump.edu.my/id/eprint/7181/ Biodegradable films from poly (lactic acid) (PLA)-chitosan-silver nanoparticles : preparation and characterization Nur Bashirah, Azli TP Chemical technology The biodegradable food packaging films were produced from biopolymers poly (lactic acid) (PLA), chitosan, and silver nanoparticles. The objectives of this research are to produce the biodegradable food packaging films from biopolymers poly (lactic acid) (PLA), chitosan, and silver nanoparticles and also to study the effects silver nanoparticles on the antimicrobial qualities of silver nanoparticles loaded with chitosan-PLA based films. Other objective in this research is to study the characterization in chemical, mechanical and biodegradability of biodegradable food packaging films. The characteristics of biodegradable food packaging films were evaluated by using equipments like Fourier transform infrared spectroscopy (FTIR) and scanning electron microscope (SEM). The film also was characterized in term of moisture content and water absorption test and also biodegradability test using soil burial degradation method. The biodegradable food packaging films based of PLA-chitosan loaded with silver nanoparticles also have antimicrobial properties towards any bacteria due to the present of silver nanoparticles that have characteristics of antifungal and antibacterial. In this study, the antimicrobial properties of the films were investigated through the antimicrobial activities by using agar disc diffusion methods and test the films with the microbial E.coli bacteria. The performance of films were optimized by manipulating the concentration of silver nanoparticles in order to obtain the biodegradable food packaging films that have high biodegradability and high qualities for food packaging application. The results shows that, the films were show positive response towards degradation process due to the weight loss within 12 days and the poly(lactic acid) (PLA) film show high resistivity towards water compared to the chitosan (CS) film. The concentration of silver nanoparticles at (23.1 % w/w SNP) shows the 100% of inhibition against Gram-negative bacterium E.coli and Gram-positive bacterium Micrococcus. Thus, it show that silver nanoparticles were successfully inhibit the bacteria grow and improve the antimicrobial properties of poly(lactic acid) (PLA)-loaded chitosan-silver nanoparticles blend films. 2013 Undergraduates Project Papers NonPeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/7181/1/BIODEGRADABLE_FILMS_FROM_POLY_%28LACTIC_ACID%29_%28PLA%29.pdf Nur Bashirah, Azli (2013) Biodegradable films from poly (lactic acid) (PLA)-chitosan-silver nanoparticles : preparation and characterization. Faculty of Chemical & Natural Resources Engineering, Universiti Malaysia Pahang. http://iportal.ump.edu.my/lib/item?id=chamo:75940&theme=UMP2
repository_type Digital Repository
institution_category Local University
institution Universiti Malaysia Pahang
building UMP Institutional Repository
collection Online Access
language English
topic TP Chemical technology
spellingShingle TP Chemical technology
Nur Bashirah, Azli
Biodegradable films from poly (lactic acid) (PLA)-chitosan-silver nanoparticles : preparation and characterization
description The biodegradable food packaging films were produced from biopolymers poly (lactic acid) (PLA), chitosan, and silver nanoparticles. The objectives of this research are to produce the biodegradable food packaging films from biopolymers poly (lactic acid) (PLA), chitosan, and silver nanoparticles and also to study the effects silver nanoparticles on the antimicrobial qualities of silver nanoparticles loaded with chitosan-PLA based films. Other objective in this research is to study the characterization in chemical, mechanical and biodegradability of biodegradable food packaging films. The characteristics of biodegradable food packaging films were evaluated by using equipments like Fourier transform infrared spectroscopy (FTIR) and scanning electron microscope (SEM). The film also was characterized in term of moisture content and water absorption test and also biodegradability test using soil burial degradation method. The biodegradable food packaging films based of PLA-chitosan loaded with silver nanoparticles also have antimicrobial properties towards any bacteria due to the present of silver nanoparticles that have characteristics of antifungal and antibacterial. In this study, the antimicrobial properties of the films were investigated through the antimicrobial activities by using agar disc diffusion methods and test the films with the microbial E.coli bacteria. The performance of films were optimized by manipulating the concentration of silver nanoparticles in order to obtain the biodegradable food packaging films that have high biodegradability and high qualities for food packaging application. The results shows that, the films were show positive response towards degradation process due to the weight loss within 12 days and the poly(lactic acid) (PLA) film show high resistivity towards water compared to the chitosan (CS) film. The concentration of silver nanoparticles at (23.1 % w/w SNP) shows the 100% of inhibition against Gram-negative bacterium E.coli and Gram-positive bacterium Micrococcus. Thus, it show that silver nanoparticles were successfully inhibit the bacteria grow and improve the antimicrobial properties of poly(lactic acid) (PLA)-loaded chitosan-silver nanoparticles blend films.
format Undergraduates Project Papers
author Nur Bashirah, Azli
author_facet Nur Bashirah, Azli
author_sort Nur Bashirah, Azli
title Biodegradable films from poly (lactic acid) (PLA)-chitosan-silver nanoparticles : preparation and characterization
title_short Biodegradable films from poly (lactic acid) (PLA)-chitosan-silver nanoparticles : preparation and characterization
title_full Biodegradable films from poly (lactic acid) (PLA)-chitosan-silver nanoparticles : preparation and characterization
title_fullStr Biodegradable films from poly (lactic acid) (PLA)-chitosan-silver nanoparticles : preparation and characterization
title_full_unstemmed Biodegradable films from poly (lactic acid) (PLA)-chitosan-silver nanoparticles : preparation and characterization
title_sort biodegradable films from poly (lactic acid) (pla)-chitosan-silver nanoparticles : preparation and characterization
publishDate 2013
url http://umpir.ump.edu.my/id/eprint/7181/
http://umpir.ump.edu.my/id/eprint/7181/
http://umpir.ump.edu.my/id/eprint/7181/1/BIODEGRADABLE_FILMS_FROM_POLY_%28LACTIC_ACID%29_%28PLA%29.pdf
first_indexed 2023-09-18T22:03:38Z
last_indexed 2023-09-18T22:03:38Z
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