Effect of concentration calcium chloride crosslinker to pectin based deep eutectic biofilm / Ismahan Zahudin

Biofilm is a flexible film made of biological materials such as polysaccharides that act as a barrier against external elements. The aim of this study is to prepare and characterise biofilm using deep eutectic solvent (DES) as a plasticizer and calcium chloride as a crosslinker. The effect of using...

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Main Author:	Zahudin, Ismahan
Format:	Thesis
Language:	English
Published:	2022
Subjects:	Polymers Macromolecules Physical and theoretical chemistry
Online Access:	https://ir.uitm.edu.my/id/eprint/69973/1/69973.pdf
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id	my-uitm-ir.69973
record_format	uketd_dc
spelling	my-uitm-ir.699732022-11-15T02:05:19Z Effect of concentration calcium chloride crosslinker to pectin based deep eutectic biofilm / Ismahan Zahudin 2022-11-09 Zahudin, Ismahan Polymers. Macromolecules Physical and theoretical chemistry Biofilm is a flexible film made of biological materials such as polysaccharides that act as a barrier against external elements. The aim of this study is to prepare and characterise biofilm using deep eutectic solvent (DES) as a plasticizer and calcium chloride as a crosslinker. The effect of using different crosslinker concentrations towards the physical and structural properties of pectin-based DES biofilm were investigated. The film manufacturing process was divided into two stages: preparation of deep eutectic solvents and preparation of biofilm. The first stage involved dissolving malonic acid and choline chloride (ChCl:MA) in a mole ratio of 1:1 at 60°C until complete dissolution. The films were prepared using a casting method with pectin and crosslinked by immersing them in CaCl2 solution with varying concentrations (3,5 and 7%). Physical and structural properties include moisture absorption, water solubility and biodegradable test were used to assess the effect of the crosslinking agent. Meanwhile, the interaction of material within films were determined using FTIR-ATR. Results found that, film moisture absorption ranges from 40 to 57.96%, water solubility ranges from 47.23 to 59.04%, and degradation ranges from 1.1 to 9%. This means that the 7% CaCl2 will cause the biofilms to become organized in matrix and resistant to absorption, dissolution, and degradation. As a result, the highest concentration is better suited for biofilm preparation. 2022-11 Thesis https://ir.uitm.edu.my/id/eprint/69973/ https://ir.uitm.edu.my/id/eprint/69973/1/69973.pdf text en public degree Universiti Teknologi Mara Faculty of Applied Sciences
institution	Universiti Teknologi MARA
collection	UiTM Institutional Repository
language	English
topic	Polymers Macromolecules Physical and theoretical chemistry
spellingShingle	Polymers Macromolecules Physical and theoretical chemistry Zahudin, Ismahan Effect of concentration calcium chloride crosslinker to pectin based deep eutectic biofilm / Ismahan Zahudin
description	Biofilm is a flexible film made of biological materials such as polysaccharides that act as a barrier against external elements. The aim of this study is to prepare and characterise biofilm using deep eutectic solvent (DES) as a plasticizer and calcium chloride as a crosslinker. The effect of using different crosslinker concentrations towards the physical and structural properties of pectin-based DES biofilm were investigated. The film manufacturing process was divided into two stages: preparation of deep eutectic solvents and preparation of biofilm. The first stage involved dissolving malonic acid and choline chloride (ChCl:MA) in a mole ratio of 1:1 at 60°C until complete dissolution. The films were prepared using a casting method with pectin and crosslinked by immersing them in CaCl2 solution with varying concentrations (3,5 and 7%). Physical and structural properties include moisture absorption, water solubility and biodegradable test were used to assess the effect of the crosslinking agent. Meanwhile, the interaction of material within films were determined using FTIR-ATR. Results found that, film moisture absorption ranges from 40 to 57.96%, water solubility ranges from 47.23 to 59.04%, and degradation ranges from 1.1 to 9%. This means that the 7% CaCl2 will cause the biofilms to become organized in matrix and resistant to absorption, dissolution, and degradation. As a result, the highest concentration is better suited for biofilm preparation.
format	Thesis
qualification_level	Bachelor degree
author	Zahudin, Ismahan
author_facet	Zahudin, Ismahan
author_sort	Zahudin, Ismahan
title	Effect of concentration calcium chloride crosslinker to pectin based deep eutectic biofilm / Ismahan Zahudin
title_short	Effect of concentration calcium chloride crosslinker to pectin based deep eutectic biofilm / Ismahan Zahudin
title_full	Effect of concentration calcium chloride crosslinker to pectin based deep eutectic biofilm / Ismahan Zahudin
title_fullStr	Effect of concentration calcium chloride crosslinker to pectin based deep eutectic biofilm / Ismahan Zahudin
title_full_unstemmed	Effect of concentration calcium chloride crosslinker to pectin based deep eutectic biofilm / Ismahan Zahudin
title_sort	effect of concentration calcium chloride crosslinker to pectin based deep eutectic biofilm / ismahan zahudin
granting_institution	Universiti Teknologi Mara
granting_department	Faculty of Applied Sciences
publishDate	2022
url	https://ir.uitm.edu.my/id/eprint/69973/1/69973.pdf
_version_	1783735918766587904

Effect of concentration calcium chloride crosslinker to pectin based deep eutectic biofilm / Ismahan Zahudin

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