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Redefining biofuels:Investigating oil palm biomass as a promising cellulose feedstock for nitrocellulose-based propellant production

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Defence Technology（防务技术） 2024年第7期37卷 111-132页

作者： Khoirul Solehah binti Abdul Rahim Alinda binti Samsuri siti Hasnawati binti Jamal siti Aminah binti Mohd nor siti nor ain binti rusly Hafizah binti Ariff Nur Shazwani binti Abdul Latif Centre for Tropicalization(CENTROP) Defence Research InstituteUniversiti Pertahanan Nasional MalaysiaKem Sungai Besi57000 Kuala LumpurMalaysia Department of Chemistry and Biology Centre for Defence Foundation StudiesUniversiti Pertahanan Nasional MalaysiaKem Sungai Besi57000 Kuala LumpurMalaysia

This review paper explores the potential of oil palm biomass as a valuable cellulose source for the production of nitrocellulose-based propellants,contributing to the green revolution and sustainable energy *** highlights the availability of the corresponding biomass in Malaysia and in line with global studies,the chemical compositions,as well as a brief description of current technologies for converting biomass of oil palm into value added products specifically *** to achieve maximum utilization of biomass from oil palm industry for cellulose production and prospective source for nitrocellulose-based propellant are also *** methodology section outlines the pretreatment of lignocellulosic fibres,cellulose extraction,and nitrocellulose production ***,the review underscores the prospective of palm oil biomass as a sustainable cellulose source for propellant manufacturing,while acknowledging the need for further research and advancements in the field.

关键词： Biopolymer Cellulose nitrate Energetic materials Green technology Palm oil

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Acute and subacute oral toxicity of Litsea elliptica Blume essential oil in rats

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2012年第10期13卷 783-790页

作者： siti Balkis BUDIN Seri Masran siti nor ain Baharuddin OMAR Izatus Shima TAIB Othman HIDAYATULFATHI Biomedical Science Programme School of Diagnostic and Applied Health SciencesFaculty of Health SciencesUniversiti Kebangsaan Malaysia50300 Jalan Raja Muda Abdul AzizKuala LumpurMalaysia Department of Environmental Health Faculty of Health SciencesUniversiti Teknologi MARAJalan Meranek94300 Kota SamarahanSarawakMalaysia

Litsea elliptica Blume has been traditionally used to treat headache,fever,and stomach ulcer,and has also been used as an insect *** acute and subacute toxicities of *** essential oil were evaluated orally by gavage in female Sprague-Dawley *** the acute toxicity study,*** essential oil was administered in doses from 500 to 4 000 mg/kg(single dose),and in the subacute toxicity test,the following doses were used:125,250,and 500 mg/kg,for 28 consecutive *** the acute toxicity study,*** essential oil caused dose-dependent adverse behaviours and *** median lethal dose value was 3 488.86 mg/kg and the acute non-observed-adversed-effect level value was found to be 500 mg/*** subacute toxicity study of *** essential oil did not reveal alterations in body weight,and food and water *** haematological and biochemical analyses did not show significant differences between control and treated groups in most of the parameters examined,except for the hemoglobin,mean cell hemoglobin concentration,mean cell volume,mean cell hemoglobin,serum albumin,and serum ***,these differences were still within the normal *** abnormalities or histopathological changes were observed in the liver,pancreatic islet of Langerhans,and renal glomerulous and tubular cells of all treated *** conclusion,*** essential oil can be classified in the U group,which is defined as a group unlikely to present an acute hazard according to World Health Organization(WHO) classification.

关键词： Litsea elliptica Acute toxicity Subacute toxicity Median lethal dose(LD 50) Natural insecticide Non-observed-adversed-effect level(NOAEL)

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Toxic effects of Litsea elliptica Blume essential oil on red blood cells of Sprague-Dawley rats

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2009年第11期10卷 813-819页

作者： Izatus Shima TAIB siti Balkis BUDIN Seri Maseran siti nor ain Jamaludin MOHAMED Santhana Raj LOUIS Srijit DAS Sulaiman SALLEHUDIN nor Fadilah RAJAB Othman HIDAYATULFATHI Department of Biomedical Sciences Faculty of Allied Health SciencesUniversiti Kebangsaan MalaysiaJalan Raja Muda Abdul Aziz50300 Kuala LumpurMalaysia Unit of Electron Microscope Institute for Medical ResearchJalan Pahang50588 Kuala LumpurMalaysia Department of Anatomy Universiti Kebangsaan MalaysiaJalan Raja Muda Abdul Aziz50300 Kuala LumpurMalaysia

Litsea elliptica Blume leaves have been traditionally used as medicinal herbs because of its antimutagenicity,chemopreventative and insecticidal properties. In this study,the toxic effects of L. elliptica essential oil against Sprague-Dawley rat’s red blood cells (RBCs) were evaluated. L. elliptica essential oil was given by oral gavage 5 times per week for 3 treated groups in the doses of 125,250,and 500 mg/(kg body weight),respectively,and the control group received distilled water. Full blood count,RBC osmotic fragility,RBC morphological changes,and RBC membrane lipid were analyzed 28 d after the treatment. Although L. elliptica essential oil administration had significantly different effects on hemoglobin (Hb),mean cell hemoglobin concentration (MCHC),mean cell volume (MCV),and mean cell hemoglobin (MCH) in the experimental groups as compared to the control group (Pnormal range. L. elliptica induced morphological changes of RBC into the form of echinocyte. The percentage of echinocyte increased significantly among the treated groups in a dose-response manner (P0.05). It is concluded that structural changes in the RBC membrane due to L. elliptica essential oil administration did not cause severe membrane damage.

关键词： Litsea elliptica Toxicity Red blood cells Morphology Cell membrane Echinocyte

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Academicians’ Perspective On Defamation

Academicians’ Perspective On Defamation

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2011 International Conference on Social Science and Humanity（ICSSH 2011）

作者： Mohd Rafiz Salji siti nor ain Seri Masran Universiti Teknologi MARA （UiTM） SarawakMalaysia

This paper discusses the relation between perspective on defamation and academicians in the *** can be categorized into a variety of media,but if miscommunication happens,it consciously or unconsciously misleads and can be *** objective of this paper is to discuss the academician’s perspective on defamation in their *** regarding occurrence,media,motives and effects of defamation were distributed to academicians in Universiti Teknologi MARA （UiTM）,Kota Samarahan *** to avoid defamation were also *** were significant results on aspects of media,effects and *** conclusion,academicians surveyed have strong opinion on aspects of defamation in the workplace.

关键词： Defamation Workplace Academician

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