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...
| Main Author: | |
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| Format: | Thesis |
| Language: | English |
| Published: |
2016
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| Subjects: | |
| Online Access: | http://eprints.usm.my/32168/ http://eprints.usm.my/32168/1/JUNIDAH_LAMAMING_24%28NN%29.pdf |
| _version_ | 1848876750292910080 |
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| author | Lamaming, Junidah |
| author_facet | Lamaming, Junidah |
| author_sort | Lamaming, Junidah |
| building | USM Institutional Repository |
| collection | Online Access |
| 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.
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| first_indexed | 2025-11-15T17:04:30Z |
| format | Thesis |
| id | usm-32168 |
| institution | Universiti Sains Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T17:04:30Z |
| publishDate | 2016 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | usm-321682019-04-12T05:25:13Z http://eprints.usm.my/32168/ Isolation And Characterization Of Cellulose Nanocrystals From Oil Palm Trunk 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 NonPeerReviewed application/pdf en http://eprints.usm.my/32168/1/JUNIDAH_LAMAMING_24%28NN%29.pdf Lamaming, Junidah (2016) Isolation And Characterization Of Cellulose Nanocrystals From Oil Palm Trunk. PhD thesis, Universiti Sains Malaysia. |
| spellingShingle | T1-995 Technology(General) Lamaming, Junidah Isolation And Characterization Of Cellulose Nanocrystals From Oil Palm Trunk |
| title | 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_short | Isolation And Characterization Of Cellulose Nanocrystals From Oil Palm Trunk |
| title_sort | isolation and characterization of cellulose nanocrystals from oil palm trunk |
| topic | T1-995 Technology(General) |
| url | http://eprints.usm.my/32168/ http://eprints.usm.my/32168/1/JUNIDAH_LAMAMING_24%28NN%29.pdf |