Pusat Pengajian Teknologi Industri - Tesis

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Characterization And Utilization Of Extracted Starch And Particles From Oil Palm Trunk For Particleboard Manufacturing
(2014-12)
Mohd Salleh, Kushairi
This study investigated the potential of the oil palm particles and oil palm starch produced and extracted from the oil palm trunk. Commercial rubberwood particles and wheat starch were used as a comparison. The starches were modified with polyvinyl alcohol to change its properties for better performance. Basic properties of raw materials were determined for their final properties of the boards. The raw materials were also characterized using scanning electron microscopy, xray diffractometry analysis, thermogravimetric analysis, and differential scanning calorimetry analysis. Comparisons were made between boards and panels bonded with urea formaldehyde were used as a control board. The physical and mechanical testing carried out based on japanese industrial standard a5908, which include density, moisture content, dimensional stability testing, and mechanical strength. All mechanical properties met the requirements, but none of the physical properties met the requirements except for moisture content. The panels made using the oil palm particles and bonded with the oil palm starch showed better mechanical properties, but poor dimensional stability compared to those panels made with the rubberwood particles, and panels bonded with the wheat starch.
Isolation And Physicochemical Properties Evaluation Of Pepsin-Solubilised Collagen And Its Hydrolysate From The Integument Of Sea Cucumber (Stichopus Vastus)
(2014-04)
Abedin, Md. Zainul
Sea cucumber (stichopus vastus) is considered as an underutilised source, since only its stomach and intestines are eaten raw as salad in few asian countries. All other parts including the integument (high content of collagen) are discarded and hence, a valuable by-product having potential food, cosmetic and pharmaceutical applications is wasted. In view of this, the present study was designed to isolate pepsin-solubilised collagen (psc) from the integument of 5. Vastus and to prepare its hydrolysate through trypsin hydrolysis for their potential applications. Sds-page analysis showed that the isolated psc was of type i and consisted of three ai chains with a yield of 21.3%. Fourier transform infrared (ftir) spectroscopy revealed that the structure of triple helix was well preserved in the psc. Amino acid composition showed that glycine was dominant in the psc. Peptide map of the psc digested by v8 protease was different from that of calf skin type i collagen.
Development And Characterization Of Nanofibers From Kenaf Bast To Reinforce Polymer Composites
(2014-08)
Davoudpour, Yalda
The aim of this research was to explore the combination of hydrochloric acid (hc1) nonhydrolysis and high pressure homogenization as a new process to isolate cellulose nanofiber (cnf). In order to prepare cnf firstly soda-anthraquinon pulping and alkaline hydrogen peroxide bleaching was performed to remove lignin and hemicellulose as well as to separate single fibers. Subsequently, the acid hydrolysis was applied as a pretreatment at different time to reduce the size of fibers and to prevent from clogging of the homogenization. The best hydrolysis condition was selected to prepare the cnf. Then cnf was isolated using high pressure homogenization at various cycle and suspension concentrations. The structural analysis of the fibers before and after each treatment was conducted by x-ray diffraction (xrd) and fourier transform infrared spectroscopy (ft-ir). Also, the morphological properties of the fibers was studied by scanning electron microscopy (sem), atomic force microscopy (afm) and transmission electron microscopy (tem) and the thermal characteristics was analyzed by thennogravimetric analysis (tga) and differential scanning calorimetry (dsc).
Efficacy Of Multigrain Supplementation In Type 2 Diabetes Mellitus: A Randomized Human Intervention Trial
(2024-02)
Mohd Ariffin, Nur Anis
The study is aimed to determine the effects of multigrain supplementation on (1) glycemic control; (2) cardiometabolic profile; (3) peripheral antioxidant and oxidative stress status, nutritional status and QoL; and (4) safety, compliancy and tolerability among the T2DM patients.
Synthesis Of Banana Peel Flocculant For The Removal Of Turbidity And Bacteria Inactivation
(2024-03)
Azamzam, Abdassalam A.
The consumption and usability of water worldwide have significantly increased in the past few years due to the surge in population. Water bodies contain huge amounts of microscopic particles and dissolved impurities, making them unfavourable for human use, especially in tropical countries. The aim of this study was to enhance the performance of banana peels bio-flocculant as one of the most common wastes in Malaysia in water treatment applications and couple it with solar disinfection process (SODIS) to disinfect the treated water.

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