Biodegradation of low-density polyethylene (LDPE) mixed with corn strach by aspergillus niger, rhizopus. oryzae and their biofilm / Nazatul Nabila Mohamad

Current methods of plastics disposal are limited to dump into land fill, incineration and enzymatic technology. To overcome this, a polyethylene known as Low-Density Polyethylene (LDPE) mixed with biodegradable materials such as corn starch is extensively studied to replace current LDPE. However, bi...

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Main Author:	Mohamad, Nazatul Nabila
Format:	Thesis
Language:	English
Published:	2020
Subjects:	Polymers Macromolecules Polyethylene
Online Access:	https://ir.uitm.edu.my/id/eprint/36998/1/36998.pdf
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id	my-uitm-ir.36998
record_format	uketd_dc
spelling	my-uitm-ir.369982020-11-25T03:39:49Z Biodegradation of low-density polyethylene (LDPE) mixed with corn strach by aspergillus niger, rhizopus. oryzae and their biofilm / Nazatul Nabila Mohamad 2020-11-16 Mohamad, Nazatul Nabila Polymers. Macromolecules Polyethylene Current methods of plastics disposal are limited to dump into land fill, incineration and enzymatic technology. To overcome this, a polyethylene known as Low-Density Polyethylene (LDPE) mixed with biodegradable materials such as corn starch is extensively studied to replace current LDPE. However, biological factors which involved in the plastics degradation is still under study. Thus, the aim of this research is to look at the potential of fungi biofilm in the degradation of LDPE mixed with corn starch. Two potential biodegradable fungi which are A. niger, R. oryzae and their biofilms were formed and their potential in plastics degradation were evaluated using SEM, FTIR and enzymatic tests. LDPE mixed with corn starch were incubated with A. niger, R. oryzae and their biofilms in triplicates within 7 weeks and their weight loss were recorded before and after the fermentation. The fungi were further analysed using Scanning Electron Microscopy (SEM) while the LDPE mixed corn starch samples were analysed with Fourier Transform Infrared Spectroscopy (FTIR) before and after fermentation. Based on the weight loss and enzymatic study, their biofilms degradation is 1.87 % higher compared to A. niger and R. oryzae. This is due to the mixed colonies cultivations results in increase enzymatic activities compared to single colony. Meanwhile, the LDPE mixed corn starch without fungi medium fermentation showed low percentage of degradation. In short, the biodegradation of LDPE mixed corn starch is influenced by enzymatic activities. This study would provide greater benefits for the community, government and industries to solve the accumulation of plastics worldwide through cheaper, easier and environmentally friendly manner. 2020-11 Thesis https://ir.uitm.edu.my/id/eprint/36998/ https://ir.uitm.edu.my/id/eprint/36998/1/36998.pdf text en public degree Universiti Teknologi Mara Perlis Faculty Of Applied Sciences
institution	Universiti Teknologi MARA
collection	UiTM Institutional Repository
language	English
topic	Polymers Macromolecules Polyethylene
spellingShingle	Polymers Macromolecules Polyethylene Mohamad, Nazatul Nabila Biodegradation of low-density polyethylene (LDPE) mixed with corn strach by aspergillus niger, rhizopus. oryzae and their biofilm / Nazatul Nabila Mohamad
description	Current methods of plastics disposal are limited to dump into land fill, incineration and enzymatic technology. To overcome this, a polyethylene known as Low-Density Polyethylene (LDPE) mixed with biodegradable materials such as corn starch is extensively studied to replace current LDPE. However, biological factors which involved in the plastics degradation is still under study. Thus, the aim of this research is to look at the potential of fungi biofilm in the degradation of LDPE mixed with corn starch. Two potential biodegradable fungi which are A. niger, R. oryzae and their biofilms were formed and their potential in plastics degradation were evaluated using SEM, FTIR and enzymatic tests. LDPE mixed with corn starch were incubated with A. niger, R. oryzae and their biofilms in triplicates within 7 weeks and their weight loss were recorded before and after the fermentation. The fungi were further analysed using Scanning Electron Microscopy (SEM) while the LDPE mixed corn starch samples were analysed with Fourier Transform Infrared Spectroscopy (FTIR) before and after fermentation. Based on the weight loss and enzymatic study, their biofilms degradation is 1.87 % higher compared to A. niger and R. oryzae. This is due to the mixed colonies cultivations results in increase enzymatic activities compared to single colony. Meanwhile, the LDPE mixed corn starch without fungi medium fermentation showed low percentage of degradation. In short, the biodegradation of LDPE mixed corn starch is influenced by enzymatic activities. This study would provide greater benefits for the community, government and industries to solve the accumulation of plastics worldwide through cheaper, easier and environmentally friendly manner.
format	Thesis
qualification_level	Bachelor degree
author	Mohamad, Nazatul Nabila
author_facet	Mohamad, Nazatul Nabila
author_sort	Mohamad, Nazatul Nabila
title	Biodegradation of low-density polyethylene (LDPE) mixed with corn strach by aspergillus niger, rhizopus. oryzae and their biofilm / Nazatul Nabila Mohamad
title_short	Biodegradation of low-density polyethylene (LDPE) mixed with corn strach by aspergillus niger, rhizopus. oryzae and their biofilm / Nazatul Nabila Mohamad
title_full	Biodegradation of low-density polyethylene (LDPE) mixed with corn strach by aspergillus niger, rhizopus. oryzae and their biofilm / Nazatul Nabila Mohamad
title_fullStr	Biodegradation of low-density polyethylene (LDPE) mixed with corn strach by aspergillus niger, rhizopus. oryzae and their biofilm / Nazatul Nabila Mohamad
title_full_unstemmed	Biodegradation of low-density polyethylene (LDPE) mixed with corn strach by aspergillus niger, rhizopus. oryzae and their biofilm / Nazatul Nabila Mohamad
title_sort	biodegradation of low-density polyethylene (ldpe) mixed with corn strach by aspergillus niger, rhizopus. oryzae and their biofilm / nazatul nabila mohamad
granting_institution	Universiti Teknologi Mara Perlis
granting_department	Faculty Of Applied Sciences
publishDate	2020
url	https://ir.uitm.edu.my/id/eprint/36998/1/36998.pdf
_version_	1783734382571290624

Biodegradation of low-density polyethylene (LDPE) mixed with corn strach by aspergillus niger, rhizopus. oryzae and their biofilm / Nazatul Nabila Mohamad

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