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Advances in Entomology 2016年第1期4卷 1-10页

作者： Ahmad Rohani abd rahman Aidil Azahary Mohamed Nor Zurainee Wan mohd Ali Wan Najdah Ismail Zamree mohd Omar Hanif mohd Majid Ariffin Hamid Zuhaizam Ismail Suzilah Han Lim Lee Medical Entomology Unit Institute for Medical Research Kuala Lumpur Malaysia Department of Parasitology University of Malaya Kuala Lumpur Malaysia School of Quantitative Sciences (SQS) UUM College of Arts and Sciences University Utara Malaysia Sintok Malaysia

Adult mosquito sampling techniques are essential for monitoring transmission of malaria and other mosquito borne infections. Preference for any sampling technique depends on both its field efficiency and the characteristics of local vector populations. Surveys on adult mosquitoes using Human Landing Catch (HLC) and CO2-baited CDC light trap (CDC-LT) techniques were conducted in several knowlesi malaria endemic areas between the months of March to December 2012 in several states of Peninsula Malaysia. These two techniques were relatively compared to determine the preferences of anopheline mosquitoes towards CO2-baited CDC-LT technique using HLC technique as the reference method. Cx. gelidus, An. maculates and An. introlatus were the main three species collected by HLC technique, whereas the species collected by CO2-baited CDC-LT technique were mostly An. cracens, Ar. durhami and Coquillettidia species. Most of the Anopheles species were collected almost exclusively by the human collectors except for An. cracens and An. introlatus which were collected using both techniques. Anopheles cracens was the most dominant species captured using CO2-baited CDC-LT technique. This is the first report showing An. cracens was caught using CO2-baited CDC-LT technique in Malaysia.

关键词： Anopheles cracens Human Landing Catch CDC Light Trap

Drought Tolerance in Mung Bean is Associated with the Genotypic Divergence, Regulation of Proline, Photosynthetic Pigment and Water Relation

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Phyton-International Journal of Experimental Botany 2023年第3期92卷 955-981页

作者： Mohammad Rafiqul Islam mohd Mostofa Kamal Mohammad Faruk Hossain Jamil Hossain Mohammad Golam Azam Mst Masuma Akhter MKamrul Hasan Ibrahim Al-Ashkar Khalid FAlmutairi Ayman EL Sabagh Md Atikur rahman Muhammad Aamir Iqbal Mohammad Sohidul Islam Agronomy Division Regional Agricultural Research StationBangladesh Agricultural Research Institute(BARI)Pabna6600Bangladesh Chief Research Scientist New Edge MicrobialsLtd.Albury2641Australia Horticulture Research Centre Regional Agricultural Research StationBangladesh Agricultural Research Institute(BARI)Pabna6600Bangladesh Pulses Research Centre BARIPabna6600Bangladesh Agronomy Division Bangladesh Wheat and Maize Research InstituteDinajpur5200Bangladesh Department of Agronomy Hajee Mohammad Danesh Science and Technology UniversityDinajpur5200Bangladesh Department of Plant Production College of Food and AgricultureKing Saud UniversityRiyadh11451Saudi Arabia Department of Agronomy Faculty of AgricultureKafrelsheikh UniversityKafrelsheikh33156Egypt Grassland and Forage Division National Institute of Animal ScienceRural Development AdministrationCheonan31000Korea Department of Agronomy Faculty of AgricultureUniversity of Poonch RawalakotRawalakot12350Pakistan Department of Genetics and Plant Breeding Faculty of AgricultureBangladesh Agricultural UniversityMymensingh2202Bangladesh

Drought is one of the critical conditions for the growth and productivity of many crops including mung bean(Vigna radiata ***).Screening of genotypes for variations is one of the suitable strategies for evaluating crop adaptability and global food *** this context,the study investigated the physiological and biochemical responses of four drought tolerant(BARI Mung-8,BMX-08010-2,BMX-010015,BMX-08009-7),and four drought sensitive(BARI Mung-1,BARI Mung-3,BU Mung-4,BMX-05001)mung bean genotypes under wellwatered(WW)and water deficit(WD)*** WW treatment maintained sufficient soil moisture(22%±0.5%,i.e.,30%deficit of available water)by regularly supplying ***,the WD treatment was maintained throughout the growing period,and water was applied when the wilting symptom *** drought tolerant(DT)genotypes BARI Mung-8,BMX-08010-2,BMX-010015,BMX-08009-7 showed a high level of proline accumulation(2.52–5.99 mg g^(−1) FW),photosynthetic pigment(total chlorophyll 2.96–3.27 mg g^(−1) FW at flowering stage,and 1.62–2.38 mg g^(−1) FW at pod developing stage),plant water relation attributes including relative water content(RWC)(82%–84%),water retention capacity(WRC)(12–14)as well as lower water saturation deficit(WSD)(19%–23%),and water uptake capacity(WUC)(2.58–2.89)under WD condition,which provided consequently higher relative seed *** indicate that the tolerant genotypes gained better physiobiochemical attributes and adaptability in response to drought ***,the genotype BMX-08010-2 showed superiority in terms of those physio-biochemical traits,susceptibility index(SSI)and stress tolerance index(STI)to other *** on the physiological and biochemical responses,the BMX-08010-2 was found to be a suitable genotype for sustaining yield under drought stress,and subsequently,it could be recommended for crop improvement through hybridization *** addition,the identified traits can be used as markers to ide

关键词： Mung bean drought proline chlorophyll water status stress tolerance

Process Improvement on the Lipase-Catalyzed Synthesis of Oleyl Palmitate, a Wax Ester via Response Surface Methodology （RSM）

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Journal of Chemistry and Chemical Engineering 2011年第2期5卷 95-104页

作者： Salina Mat Radzi Nor Mona Yunus Siti Salhah Othman Mahiran Basri mohd Basyaruddin abd. rahman Hanina mohd. Noor Syamsul Kamar Muhammad Faculty of Science and Technology Universiti Sains Islam Malaysia Nilai 71800 Negeri Sembilan Malaysia Chemistry Department Faculty of Science Universiti Putra Malaysia UPM Serdang 43400 Selangor Malaysia

High performance enzymatic synthesis of oleyl palmitate, a wax ester was carried out by lipase-catalyzed esterification of palmitic acid and oleyl alcohol. Response surface methodology （RSM） based on 5-level, 3-variable of centre composite rotatable design （CCRD） was used to evaluate the interactive effects of synthesis, of temperature （40-60 ℃）; amount of enzyme （0.1-0.4 g） and substrate molar ratio of oleyl alcohol to palmitic acid （1：1-4：1） on the percentage yield of wax ester. All reactions were fixed at 1 hour of reaction time. The optimum condition obtained from RSM for the reactions were temperature of 57.9 ℃, enzyme amount of 0.26 g and molar ratio of substrates of 2.92. The actual experimental yield was 91.2% under the optimum condition, which compared well with the maximum predicted value of 92.0%. Comparison of predicted and experimental values reveal good correspondence between them, implying that empirical models derived from RSM can be used to adequately describe the relationship between the factors and response in the synthesis of oleyl palmitate.

关键词： Response surface methodology oleyl palmitate wax ester lipase-catalyzed synthesis

Nanohybrid membrane in algal-membrane photoreactor: Microalgae cultivation and wastewater polishing

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Chinese Journal of Chemical Engineering 2019年第11期27卷 2799-2806页

作者： Woon Chan Chong abdul Wahab Mohammad Ebrahim Mahmoudi Ying Tao Chung Kamrul Fakir Kamarudin mohd Sobri Takriff Chemical Engineering Programme Faculty of Engineering and Built EnvironmentUniversiti Kebangsaan Malaysia43600 BangiSelangorMalaysia Department of Chemical Engineering Lee Kong Chian Faculty of Engineering and ScienceUniversiti Tunku Abdul RahmanJalan Sungai LongBandar Sungai LongCheras43000 KajangSelangorMalaysia Research Center for Sustainable Process Technology(CESPRO) Faculty of Engineering and Built EnvironmentUniversiti Kebangsaan Malaysia43600 BangiSelangorMalaysia Department of Chemical Engineering and Petroleum Engineering Faculty of EngineeringTechnology and Built EnvironmentUCSI UniversityNo.1Jalan Menara GadingUCSI HeightsCheras56000 Kuala LumpurMalaysia

Microalgae cultivation has gained tremendous attention in recent years due to its great potential in green biofuel production and wastewater treatment application. Membrane technology is a great solution in separating the microalgae biomass while producing high quality of permeate for recycling. The main objective of this study was to investigate the filtration performance of Ag/GO-PVDF(silver/graphene oxide-polyvinylidene fluoride) membrane in an algalmembrane photoreactor(A-MPR) by benchmarking with a commercial PVDF(com-PVDF) membrane. In this study, Chlorella vulgaris microalgae was cultivated in synthetic wastewater in an A-MPR for ammoniacal-nitrogen and phosphorus recovery and the wastewater was further filtered using Ag/GO-PVDF and com-PVDF membranes to obtain high quality water. Spectrophotometer was used to analyze the chemical oxidation demand(COD), ammoniacal nitrogen(NH3-N) and phosphate(PO43-). The concentration of proteins and carbohydrates was measured using Bradford method and phenol-sulfuric acid method, respectively. The COD of the synthetic wastewater was reduced from(180.5 ± 5.6) ppm to(82 ± 2.6) ppm due to nutrient uptake by microalgae. Then, the Ag/GO-PVDF membrane was used to further purify the microalgae cultivated wastewater, resulting in a low COD permeate of(31 ± 4.6) ppm. The high removal rate of proteins(100%) and carbohydrates(86.6%) as the major foulant in microalgae filtration, with low membrane fouling propensity of Ag/GO-PVDF membrane is advantageous for the sustainable development of the microalgae production. Hence, the integrated A-MPR system is highly recommended as a promising approach for microalgae cultivation and wastewater polishing treatment.

关键词： Algal-membrane photoreactor Nanohybrid membrane Wastewater polishing Microalgal cultivation Nutrient recovery

Green Synthesis of Wax Ester by Immobilized Lipase

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复旦学报（自然科学版） 2007年第5期46卷 808-页

作者： Salina Mat Radzi Noob Mona mohd.Yunus Siti Salhah othman Mahiran Basri mohd.Basyaruddin abdul rahman Faculty of Science and Technology Universiti Sains Islam Malaysia Bandar Baru Nilai Faculty of Science Universiti Putra Malaysia43400 UPM SerdangSelangor Malaysia

1 Results Enzyme catalysis is most attractive for the synthesis and modification of biologically relevant classes of fine organic compounds, which are difficult to prepare and to handle by conventional means[1]. In this study, commercial immobilized lipase from Candida antarctica (Novozym 435) was used in the preparation of fine organic compound with excellent properties and application as raw material for cosmetic formulation - oleyl palmitate. The effect of various reaction parameters were optimized c...

关键词： wax ester immobilized lipase oleyl palmitate enzymatic synthesis

Composition and source apportionment of dust fall around a natural lake

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Journal of Environmental Sciences 2015年第7期27卷 143-155页

作者： mohd Talib Latif Sofia Aida Ngah Doreena Dominick Intan Suraya Razak Xinxin Guo Thunwadee Srithawirat Idris Mushrifah School of Environmental and Natural Resource Sciences Faculty of Science and Technology Universiti Kebangsaan Malaysia Institute for Environment and Development (LESTARI) Universiti Kebangsaan Malaysia Centre for Atmospheric Chemistry University of Wollongong Department of Environmental Engineering Faculty of Engineering and Green Technology Universiti Tunku Abdul Rahman Department of Environmental Science Faculty of Science and Technology Pibulsongkram Rajabhat University Pusat Penyelidikan Tasik Chini (PPTC) Faculty of Science and Technology Universiti Kebangsaan Malaysia

The aim of this study was to determine the source apportionment of dust fall around Lake Chini, Malaysia. Samples were collected monthly between December 2012 and March2013 at seven sampling stations located around Lake Chini. The samples were filtered to separate the dissolved and undissolved solids. The ionic compositions（NO-3, SO2-4, Cl-and NH＋4） were determined using ion chromatography（IC） while major elements（K, Na, Ca and Mg） and trace metals（Zn, Fe, Al, Ni, Mn, Cr, Pb and Cd） were determined using inductively coupled plasma mass spectrometry（ICP-MS）. The results showed that the average concentration of total solids around Lake Chini was 93.49 ± 16.16 mg/（m2·day）. SO2-4, Na and Zn dominated the dissolved portion of the dust fall. The enrichment factors（EF） revealed that the source of the trace metals and major elements in the rain water was anthropogenic, except for Fe. Hierarchical agglomerative cluster analysis（HACA） classified the seven monitoring stations and 16 variables into five groups and three groups respectively. A coupled receptor model, principal component analysis multiple linear regression（PCA-MLR）, revealed that the sources of dust fall in Lake Chini were dominated by agricultural and biomass burning（42%）,followed by the earth＇s crust（28%）, sea spray（16%） and a mixture of soil dust and vehicle emissions（14%）.

关键词： Trace metal Major element Anion Source apportionment Lake Ghini Malaysia

Environmentally Friendly Biosorbent from Moringa Oleifera Leaves for Water Treatment

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Environmentally Friendly Biosorbent from Moringa Oleifera Le...

Treated Tropical Wood Sawdust-Polypropylene Polymer Composite: Mechanical and Morphological Study

作者： Eman N.Ali Sabreen R.Alfarra Mashita mohd Yusoff Md Lutfor rahman the Faculty of Chemical&Natural Resources Engineering Universiti Malaysia Pahang Universiti Malaysia Pahang the Faculty of Industrial Sciences&Technology Universiti Malaysia Pahang

In this study Moringa oleifera leaves(biosorbent) is used for Cadmium(Ⅱ) removal from water as a natural alternative for synthetic *** water was used to find optimum conditions for water treatment using *** effect of biosorbent dosage and particle size, contact time, and pH effect were *** absorption Spectroscopy(AAS) was used to monitor the Cd(Ⅱ) concentration before and after treatment with *** Transform Infrared Spectroscopy(FTIR) was used to monitor biosorbent structure changes before and after loading with Cd(Ⅱ).Many parameters were studied such as: dosage of biosorbent(1 – 10 g/L), contact time(2 – 20 min), particle size(2 mm, 1 mm, 500 μm, 250 μm, and <250 μm), pH range(4-10), and Cd(Ⅱ) concentrations(1, 3, 5, and 7 ppm).The statistical analysis of studied parameters showed that all parameters has an effect on Cd(Ⅱ) removal with p values <0.05 except *** result showed changes in the finger print area of biosorbent functional groups due to adsorption of Cd(Ⅱ).As a conclusion, Moringa oleifera leaves can be used as an effective, low cost, and environmentally friendly biosorbent for the removal of Cd(Ⅱ) from water.

关键词： Biosorption Cadmium(Ⅱ) Moringa oleifera water treatment

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Journal of Biomaterials and Nanobiotechnology 2011年第4期2卷 435-444页

作者： M. A. M. mohd Idrus S. Hamdan Md. Rezaur rahman Md. S. Islam 不详

In this research, composites based on treated tropical sawdust and polypropylene (PP) were prepared using hot press molding machine. Raw sawdust was chemically treated with monomer, 2 - ethylhexyl methacrylate in order to improve the mechanical properties of the composites. The influence of the chemically treated sawdust on the physical and mechanical properties of sawdust-PP composites were investigated at various loading level from 10 wt.% up to 30 wt.%. Results indicate that the mechanical properties of the chemically treated sawdust–PP composites were found to be higher than those of the raw ones respectively. The surface morphology obtained from scanning electron microscopy (SEM) showed that raw sawdust–PP composites possess surface roughness and weak interfacial adhesion between the matrix and the filler while the chemically treated one showed improved filler–matrix interaction. This indicates that better dispersion of the filler with the PP matrix has occurred upon chemical treatment of the filler. Water absorption tests showed that composites prepared from the chemically treated sawdust absorb lower amount of water compared to the ones prepared from raw sawdust, suggesting that hydrophilic nature of the cellulose in the sawdust has significantly decreased upon chemical treatment.

关键词： Wood Sawdust Polypropylene Mechanical Properties Water absorption

Preparation of Layered Double Hydroxide-Immobilized Lipase for High Yield and Optically Active (-)-Menthyl butyrate

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复旦学报（自然科学版） 2007年第5期46卷 778-页

作者： Siti Salhah Othman Mahiran Basri mohd.Zobir Hussein mohd Basyaruddin abdul rahman Raja Noor Zaliha Raja abdul rahman abu Bakar Salleh Salina Mat Radzi Azwani Sofia Ahmad Khiar Food Biotechnology Programme Universiti Sains Islam Malaysia Department of Chemistry Faculty of ScienceUniversiti Putra Malaysia Faculty of Biotechnology and Biomolecular Sciences Universiti Putra Malaysia

1 Results Layered Double Hydroxide (LDH) finds extensive usage in the areas of pharmaceutical sciences and catalysis. In this study, a member of the LDH family, Mg/Al-hydrotalcite (HT), or the so-called anionic clay, was prepared at ratio 4 (HT) by co-precipitating through continuous agitation. X-ray diffraction pattern and thermogravimetric analysis of the material indicated that a pure HT had been successfully synthesized. This matrix was then used as support in the immobilization of lipase from Cand...

关键词： LDH-lipase hydrotalcite candida rugosa enantioselective esterification (±)-menthylbutyrate

Effect of Microwave Power and Clamping Pressure on the Microwave Welding of Polypropylene Using Silicon Carbide Nanowhiskers as Microwave Susceptor

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Chinese Journal of Polymer Science 2022年第11期40卷 1466-1481页

作者： Phey Yee Foong Chun Hong Voon Bee Ying Lim Pei Leng Teh mohd Afendi Bin Rojan Nor Azizah Parmin Subash C.B.Gopinath mohd Khairuddin Md Arshad Foo Wah Low Savisha Mahalingam abreeza Manap Ruslinda A.Rahim Uda Hashim Institute of Nano Electronic Engineering Universiti Malaysia PerlisSeriabKangarPerlis01000Malaysia Faculty of Chemical Engineering Technology Universiti Malaysia PerlisJejawiPerlis Arau02600Malaysia Faculty of Mechanical Engineering Technology Universiti Malaysia PerlisPauhPerlis Arau02600Malaysia Department of Electrical&Electronic Engineering Lee Kong Chian Faculty of Engineering&ScienceUniversiti Tunku Abdul RahmanBandar Sungai LongKajangSelangor43000Malaysia Institute of Sustainable Energy Universiti Tenaga NasionalJalan IKRAM-UNITENKajangSelangor43000Malaysia

Due to their excellent dielectric properties and the rapid response to microwave irradiation,silicon carbide nanowhiskers(SiCNWs)were employed as microwave susceptor in this study to absorb microwave and locally melt the surrounding polypropylene(PP)substrates for the joining of PP *** welded joint is formed after the melted PP was cooled and *** than microwave susceptor,SiCNWs also acted as the nanofillers in strengthening the welded joint through the formation of SiCNWs reinforced PP nanocomposite at the interface of PP ***,the effect of microwave power on the microwave welding of PP substrates using SiCNWs as susceptor was studied and *** was found that the tensile strength and modulus of elasticity of the welded joint improved as microwave power ***,it deteriorates the flexibility of the welded joint as high stiffness SiCNWs were incorporated deeper into the PP matrix which restricted the PP chain *** from microwave power,clamping pressure is also critical in determining the mechanical properties of a welded *** compared to unclamped welded joint,the tensile strength,modulus of elasticity and flexibility of welded joint subjected to clamping pressure improved ***,the tensile strength of welded joint increased when the clamping pressure was increased from P1 to P3,but decreased when the clamping pressure was further increased to P4 due to the occurrence of flashing at welded *** formation mechanism of SiCNWs reinforced PP welded joint was also proposed in this *** to conventional welding,this welding process is easy,straightforward and is able to produce welded joint with outstanding mechanical properties via precise controlling of the processing ***,microwave welding is thought to offer an option for the joining of thermoplastics and other applications.

关键词： Microwave welding Silicon carbide Nanowhiskers Joining Susceptor