Isolation And Characterization Of Cellulose Nanocrystals From Oil Palm Trunk

Kajian ini bertujuan untuk mengkaji sifat-sifat selulosa nanokristal (CNC) yang diekstrak daripada batang pokok kelapa sawit (Elaeis guineensis) (OPT). Enam jenis CNC diekstrak daripada OPT dengan menggunakan dua kaedah yang berbeza. Empat jenis CNC yang diperolehi daripada OPT secara keseluruhan...

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主要作者:	Lamaming, Junidah
格式:	Thesis
語言:	English
出版:	2016
主題:	T1-995 Technology(General)
在線閱讀:	http://eprints.usm.my/32168/1/JUNIDAH_LAMAMING_24%28NN%29.pdf
標簽:	添加標簽沒有標簽, 成為第一個標記此記錄!

id	my-usm-ep.32168
record_format	uketd_dc
spelling	my-usm-ep.321682019-04-12T05:25:13Z Isolation And Characterization Of Cellulose Nanocrystals From Oil Palm Trunk 2016-09 Lamaming, Junidah T1-995 Technology(General) Kajian ini bertujuan untuk mengkaji sifat-sifat selulosa nanokristal (CNC) yang diekstrak daripada batang pokok kelapa sawit (Elaeis guineensis) (OPT). Enam jenis CNC diekstrak daripada OPT dengan menggunakan dua kaedah yang berbeza. Empat jenis CNC yang diperolehi daripada OPT secara keseluruhan iaitu nanokristal yang terhasil daripada bahan asal tanpa rawatan dan rawatan air panas serta daripada parenkima dan berkas vaskular OPT melalui kimo-mekanikal diikuti hidrolisis dengan asid sulfurik. Dua jenis nanokristal selulosa lagi diperolehi melalui pra-hidrolisis dan tanpa pra-hidrolisis air disediakan melalui pemulpaan soda diikuti pelunturan ozon dan dihidrolisis dengan asid hidroklorik. Sifat-sifat fizikal, dan kimia, sifat-sifat termal dan indeks penghabluran nanokristal selulosa yang masing-masing ditentukan menggunakan pengimbas mikroskop electron (SEM), penghantaran elektron mikroskop (TEM), potensi zeta dan penganalis unsur, Fourier transformasi inframerah (FTIR), analisis termal gravimetrik (TGA) dan analisis pembelauan sinar-X (XRD). This study investigated the properties of cellulose nanocrystal (CNC) isolated from oil palm trunk (Elaeis guineensis) (OPT). Six types of CNCs were extracted from OPT using two different methods. Four types of CNCs were derived from the OPT as a whole that is CNCs from raw and water treated and also from separated parenchyma and vascular bundle of OPT using chemo-mechanical followed by sulfuric acid hydrolysis. Two more types of CNC with and without water pre-hydrolysis were prepared by soda pulping followed by ozone bleaching and hydrolyzed with hydrochloric acid. Physical and chemical properties, thermal behaviour, and also crystallinity index of all obtained CNCs were determined using scanning electron microscopy (SEM), transmission electron microscopy (TEM), zeta potential, elemental analyzer, fourier transform infrared (FTIR), thermogravimetric analysis (TGA) and X-ray diffraction (XRD), respectively. 2016-09 Thesis http://eprints.usm.my/32168/ http://eprints.usm.my/32168/1/JUNIDAH_LAMAMING_24%28NN%29.pdf application/pdf en public phd doctoral Universiti Sains Malaysia Pusat Pengajian Teknologi Industri (Social of Industrial Technology)
institution	Universiti Sains Malaysia
collection	USM Institutional Repository
language	English
topic	T1-995 Technology(General)
spellingShingle	T1-995 Technology(General) Lamaming, Junidah Isolation And Characterization Of Cellulose Nanocrystals From Oil Palm Trunk
description	Kajian ini bertujuan untuk mengkaji sifat-sifat selulosa nanokristal (CNC) yang diekstrak daripada batang pokok kelapa sawit (Elaeis guineensis) (OPT). Enam jenis CNC diekstrak daripada OPT dengan menggunakan dua kaedah yang berbeza. Empat jenis CNC yang diperolehi daripada OPT secara keseluruhan iaitu nanokristal yang terhasil daripada bahan asal tanpa rawatan dan rawatan air panas serta daripada parenkima dan berkas vaskular OPT melalui kimo-mekanikal diikuti hidrolisis dengan asid sulfurik. Dua jenis nanokristal selulosa lagi diperolehi melalui pra-hidrolisis dan tanpa pra-hidrolisis air disediakan melalui pemulpaan soda diikuti pelunturan ozon dan dihidrolisis dengan asid hidroklorik. Sifat-sifat fizikal, dan kimia, sifat-sifat termal dan indeks penghabluran nanokristal selulosa yang masing-masing ditentukan menggunakan pengimbas mikroskop electron (SEM), penghantaran elektron mikroskop (TEM), potensi zeta dan penganalis unsur, Fourier transformasi inframerah (FTIR), analisis termal gravimetrik (TGA) dan analisis pembelauan sinar-X (XRD). This study investigated the properties of cellulose nanocrystal (CNC) isolated from oil palm trunk (Elaeis guineensis) (OPT). Six types of CNCs were extracted from OPT using two different methods. Four types of CNCs were derived from the OPT as a whole that is CNCs from raw and water treated and also from separated parenchyma and vascular bundle of OPT using chemo-mechanical followed by sulfuric acid hydrolysis. Two more types of CNC with and without water pre-hydrolysis were prepared by soda pulping followed by ozone bleaching and hydrolyzed with hydrochloric acid. Physical and chemical properties, thermal behaviour, and also crystallinity index of all obtained CNCs were determined using scanning electron microscopy (SEM), transmission electron microscopy (TEM), zeta potential, elemental analyzer, fourier transform infrared (FTIR), thermogravimetric analysis (TGA) and X-ray diffraction (XRD), respectively.
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Lamaming, Junidah
author_facet	Lamaming, Junidah
author_sort	Lamaming, Junidah
title	Isolation And Characterization Of Cellulose Nanocrystals From Oil Palm Trunk
title_short	Isolation And Characterization Of Cellulose Nanocrystals From Oil Palm Trunk
title_full	Isolation And Characterization Of Cellulose Nanocrystals From Oil Palm Trunk
title_fullStr	Isolation And Characterization Of Cellulose Nanocrystals From Oil Palm Trunk
title_full_unstemmed	Isolation And Characterization Of Cellulose Nanocrystals From Oil Palm Trunk
title_sort	isolation and characterization of cellulose nanocrystals from oil palm trunk
granting_institution	Universiti Sains Malaysia
granting_department	Pusat Pengajian Teknologi Industri (Social of Industrial Technology)
publishDate	2016
url	http://eprints.usm.my/32168/1/JUNIDAH_LAMAMING_24%28NN%29.pdf
_version_	1747820538516996096

Isolation And Characterization Of Cellulose Nanocrystals From Oil Palm Trunk

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