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Phytochemical constituents,antioxidant and antibacterial activities of methanolic extract of Ardisia elliptica

Asian Pacific Journal of Tropical Biomedicine 2017年第6期7卷 569-576页

作者： Nazeh M.Al-Abd Zurainee Mohamed Nor Marzida Mansor Asdren Zajmi mohd shahnaz hasan Fadzly Azhar Mustafa Kassim Department of Parasitology Faculty of MedicineUniversity of Malaya Faculty of Medicine and Health Sciences University of Aden Department of Anesthesiology Faculty of MedicineUniversity of Malaya Department of Diagnostic and Allied Health Sciences Faculty of Health and Life SciencesManagement and Science University Department of Chemistry Faculty of ScienceUniversity of Malaya

Objective:To investigate the antioxidant,antibacterial,and chemical ingredients of Ardisia elliptica(***) methanolic ***:The plant was extracted using *** and antioxidant activities were ***:The results showed that both fruit and leaf extract of *** have significant antibacterial activities against Gram-positive and Gram-negative *** extracts showed higher content of phenolic(71 ± 0.03 GAE/mg extract dry weight),in comparison to the leaf extracts(37 ± 0.05 GAE/mg extract dry weight).Flavonoid content,and Fe2+chelating activity of fruit extracts were higher than leaf *** percentage radical inhibition of fruit extract is found to be higher(70%) than that of leaf extract(60%).LCMS results indicated that the major compounds in the fruit extract were Gingerol,Aspidin,Kampherol,and Stercuresin,while the leaf extract contained Gingerol,Aspidin,Triangularin,and Salicyl acyl ***,the results of GCMS indicated that fruit extract contained these major compounds:Vitamin E Tocopherol,5-hepylresornicol,2-Nonylmalonic acid,5-pentadecylresornicol,and ***,leaf extract of *** contained these major compounds:Alpha Amyrenol,4,4,6,6a,6b,8,8a,9,10,11,12,12 a,14,14 a,14 b octadehydro-2H-picen-3-one,and Lonasterol,4-t-Butyl-2-[4-nitrophenyl] ***:The results provide evidence that fruit and leaf of *** extracts might indeed be used as a potential source of effective natural antimicrobial and antioxidant agents in pharmaceutical and food industries.

关键词： Ardisia elliptica Antioxidant capacity Total phenol content Gas chromatography/mass spectrometry Liquid chromatography/mass spectrometry

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Nutritional and therapeutic benefits of coconut milk and its potential as a plant-based functional yogurt alternative:a review

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Food Science and Human Wellness 2025年第1期14卷 64-77页

作者： Gengghatarani Gengan Nurul Solehah mohd Zaini Nazamid Saari Anis Shobirin Meor Hussin Ahmad Haniff Jaafar Hanan hasan Elicia Jitming Lim Wan Abd Al Qadr Imad Wan-Mohtar Muhamad Hafiz Abd Rahim Faculty of Food Science and Technology Universiti Putra MalaysiaSerdang 43400Malaysia School of Life and Environmental Sciences The University of SydneyNew South Wales 2006Australia Functional Omics and Bioprocess Development Laboratory Institute of Biological SciencesFaculty of ScienceUniversiti MalayaKuala Lumpur 50603Malaysia

Plant-based milks are on the rise due to an increased awareness of their sustainability and health ***,dairy milk is the most nutritionally complete beverage,but it suffers from the presence of indigestible lactose and allergenic *** milk has been around for a long time,but its application is limited due to a perceived lack of specific nutrients,high saturated fat levels,and low *** evidence indicates,however,that the saturated fat and other plant-based components found in coconut milk are good for metabolic outcomes and brain *** conversion of coconut milk to yoghurt will further improve its functionality by boosting its existing nutritional *** this article,the nutritional value of coconut milk,as well as its potential downsides,its application as yoghurt,and suggestions for enhancing its nutritional functionality will be examined.

关键词： Coconut milk Plant-based yoghurt Diabetes Neurodegenerative Saturated fat Functional food Probiotic

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Comparative study of ethanol foamed asphalt binders and mixtures prepared via manual injection and laboratory foaming device

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Journal of Traffic and Transportation Engineering(English Edition) 2019年第4期6卷 383-395页

作者： mohd Rosli mohd hasan Zhanping You School of Civil Engineering Universiti Sains MalaysiaNibong Tebal 14300Pulau PinangMalaysia Department of Civil and Environmental Engineering Michigan Technological UniversityHoughtonMI 49931USA

The consistency of the ethanol foamed binders and mixtures prepared using asphalt binders foamed by the manual injection technique and laboratory foaming device were evaluated and compared in this study. The asphalt binders foamed using both methods was prepared at 120℃, 130℃ and 140℃. The performance of ethanol-foamed binders was evaluated in terms of rotational viscosity, expansion ratio, and low temperature ***, the performance of foamed WMA mixtures was tested using semi-circular bending(SCB), disk-shaped compact tension(DCT), and tensile strength ratio(TSR) tests. In order to conduct the TSR test, the samples were conditioned using the Moisture Induced Stress Tester(MIST) to simulate the pore pressure and scouring effects due to a tire passing over wet pavement. The foamed WMA mixtures were produced using pre-heated aggregates at 80℃ and 100℃ and foamed asphalt binders produced at 130℃. The nano-hydrated lime was used as the filler and anti-stripping agent. Overall, the properties of ethanol-foamed binders and WMA mixtures produced via both methods are significantly comparable, except the resistance to moisture damage test result. However, the findings indicate that the ethanol-foamed WMA mixtures prepared using both techniques are having good resistance to moisture damage, based on the TSR values more than 0.8. The foamed WMA mixtures also exhibited a better resistance to cracking, as indicated by a higher tensile strength compared to the control HMA. Additionally, the WMA specimen prepared at 100℃ was less susceptible to rutting than the samples produced at 80℃.

关键词： Warm mix asphalt Foaming technique Rheological Foam quality Mixture performance

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Preparation process of bio-oil and bio-asphalt,their performance,and the application of bio-asphalt:A comprehensive review

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Journal of Traffic and Transportation Engineering(English Edition) 2020年第2期7卷 137-151页

作者： Hainian Wang Ziye Ma Xi Chen mohd Rosli mohd hasan School of Highway Chang'an UniversityXi'an 710064China School of Civil Engineering Universiti Sains MalaysiaNibong Tebal 14300Pulau PinangMalaysia

The objective of this paper is to establish the state of knowledge on fast pyrolysis of bio-oil and bio-asphalt binder and to facilitate efforts in improving the overall perform ance of bioasphalt and maximizing its road *** the basis of reviewing the relevant literature recently,the fast pyrolysis(FasP) preparation process of bio-oil and its main properties,the preparation process of bio-asphalt and its performance and the application of bio-asphalt have been *** to the variations in raw materials,the adopted methods of FasP to prepare bio-oil could be different,and the properties of bio-oil from different sources are also *** present,the plant-based bio-oil(mainly derived from wood waste and sawdust) has been widely used to prepare the *** on the low-temperature flexibility,high-temperature rheology,workability and other performance of biological asphalt showed that the workability and high-temperature performance of most asphalt are improved after adding ***,the low-temperature performance is found to relatively ***,with regards to its application as a rejuvenator,bio-oil can considerably rejuvenate the aged asphalt’s mixture *** far,most of research on bio-asphalt is still focused on the performance of bio-asphalt binder in the laboratory;its application in practical road engineering is still to be *** review also provides an outlook for the future,for example,establishing an integrated preparation process from bio-oil to bio-asphalt,and evaluating the properties of bioasphalt by new standards.

关键词： Road engineering Bio-oil Bio-asphalt Preparation process Performance Application of bio-asphalt

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Recent development,utilization,treatment and performance of solid wastes additives in asphaltic concrete worldwide:A review

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Journal of Traffic and Transportation Engineering(English Edition) 2022年第5期9卷 693-724页

作者： Tracy Leh Xin Wong mohd Rosli mohd hasan Leo Choe Peng School of Civil Engineering Universiti Sains Malaysia14300 Nibong TebalPinangMalaysia School of Chemical Engineering Universiti Sains Malaysia14300 Nibong TebalPinangMalaysia

Asphalt modifications either involved commercial or recycled waste materials modifiers help optimise and improve the deficient properties of asphalt mixtures relative to current *** manuscript reviews the recycling of waste materials generated from various sources such as household,agricultural and industrial to minimise natural resources exploitation,lower energy demand,and enhance overall pavement *** actual development and implementation of recycled asphalt pavement in numerous countries in Asia,North America,South America,Europe and Africa are emphasised,and their influence on the performance of asphalt pavements is *** pavement showed satisfying performance for years as maintenance and restoration are not ***,solid wastes are required to undergo pre-requisite treatments via mechanical,biological stabilization,thermal or chemical methods before the implementation as asphalt modifiers to ease the handling *** damage issues have been spotted in the implementation of several types of solid wastes and consequently reduced the strength and durability of ***,potential hydrophobic treatment can be adopted to improve the quality of asphalt mixtures by modifying the hydrophilic characteristics that are contributed by the hydroxyl groups on the cellulose nanocrystals(CNCs)or providing a superhydrophobic coating onto the *** treatments greatly weakened the moisture sensitivity of modified materials by reducing their water absorption and increasing their water contact *** modified mixtures are necessary to have identical or enhanced pavement performance to the conventional ***,future researchers are encouraged to broaden the research field in pavement engineering by considering chemical treatments in improving material properties to achieve cost-saving,efficient waste management,and higher commercial *** implementing any virgin materials,waste material

关键词： Sustainable pavement Industrial waste Cleaner environment Resources preservation Hydrophobic treatments Mechanical performances

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Torsional behavior of triangular web profile （TRIWP） steel section by experimental study

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Frontiers of Structural and Civil Engineering 2016年第4期10卷 409-419页

作者： Fatimah DE'NAN Hazwani hasan mohd Hanim OSMAN Sariffudin SAAD School of Civil Engineering Engineering Campus Universiti Sains Malaysia Pulau Pinang 14300 Malaysia Faculty of Civil Engineering Universiti Teknologi Malaysia Skudai Johor 8131 O Malaysia

A triangular web profile （TriWP） is a modified section where the flanges are connected to a web plate of triangular profile. This study examined the torsional behavior of TriWP steel sections and compared to that of the fiat web （FW） steel sections. Three types of specimen sizes were used： 180 mmx 75 mm × 5 mm× 2 mm, 200 mm × 100 mm× 8 mm ×6 mm, and 200 mm× 100 mm × 6 mm× 5 mm. All the specimens were loaded vertically until the maximum load was achieved and then the load was released. For both types of specimens, it was observed that the torsional rotation for bigger size [200 mm× 100 mm× 8 mm × 6 mm] were smaller than that of smaller size [ 180 mm × 75 mm×5 mm× 2 mm] of the specimens. At the maximum torsional loading, the experimental result was compared to the theoretical calculation. The comparison showed that the percentage difference ranged from 1.10% to 16.80%. From the graph of torsional load versus rotational angle, the torsional rotation for all TriWP steel sections were smaller than that of the FW steel section under the same torsional loading i.e., 0.2 kNm and 1 kNm. The range between FW and TriWP were 3.74 to 71.83 at 0.2 kNm while 14.5 to 75.1 at 1.0 kNm. The findings were shown that the TriWP steel sections had better resistance against torsion in comparison to FW steel section.

关键词： corrugated web i-beam non uniform steel section torsion resistance torsion angle triangular web profile steel section

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Wireless Sensor Security Issues on Data Link Layer:A Survey

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Computers, Materials & Continua 2023年第5期75卷 4065-4084页

作者： Muhammad Zulkifl hasan Zurina mohd Hanapi Muhammad Zunnurain Hussain Department of Communication Technology and Network Faculty of Computer Science and Information TechnologyUniversiti Putra MalaysiaSerdangSelangor43400Malaysia

A computer network can be defined as many computing devices connected via a communication medium like the *** network development has proposed how humans and devices communicate *** networks have improved,facilitated,and made conventional forms of communication ***,it has also led to uptick in-network threats and *** 2022,the global market for information technology is expected to reach$170.4 ***,in contrast,95%of cyber security threats globally are caused by human *** networks may be utilized in several control systems,such as home-automation,chemical and physical assault detection,intrusion detection,and environmental *** proposed literature review presents a wide range of information on Wireless Social Networks(WSNs)and Internet of Things(IoT)*** aim is first to be aware of the existing issues(issues with traditional methods)and network attacks on WSN and IoT systems and how to defend *** second is to review the novel work in the domain and find its *** goal is to identify the area’s primary gray field or current research divide to enable others to address the ***,we concluded that *** Rapid Spanning Tree Protocol(RSTP)messages have higher efficiency in network performance degradation than alternative Bridge Data Unit Protocol(BPDU)*** research divides our future research into solutions and newly developed techniques that can assist in completing the lacking *** this research,we have selected articles from 2015 to 2021 to provide users with a comprehensive literature overview.

关键词： Wireless sensor networks(WSN) internet of things(IoT) industrial revolution 4.0(IR4.0) computer networks network security

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Ethanol based foamed asphalt as potential alternative for low emission asphalt technology

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Journal of Traffic and Transportation Engineering(English Edition) 2016年第2期3卷 116-126页

作者： mohd Rosli mohd hasan Zhanping You Department of Civil and Environmental Engineering Michigan Technological University School of Civil Engineering Universiti Sains Malaysia

Foamed asphalt typically relies on water as a foaming agent because water becomes gaseous at elevated temperatures, generating numerous tiny bubbles in the asphalt and causing spontaneous foaming. In this study, ethanol was used as a potential alternative to water as a foaming agent. Ethanol is expected to be a physical blowing agent in the same manner as water, except it requires less energy to foam due to its 78 ℃ boiling point. This study compares the performance of water and ethanol as foaming agents through the measurements of rotational viscosity, the reduction in temperature during foaming, and volatile loss. The ethanol-foamed asphalt binders were prepared at 80 ~C and 100 ~C, while the water-foamed asphalt binders were prepared at 100 ~C and 120 ~＇C. Additionally, the rolling thin film oven （RTFO） was used to generate short-term aging of the foamed asphalt binders. A rotational viscometer was used to determine the viscosity of the asphalt binders at 80 ~C, 100 ~C, 120 ~C, 140 ~C, and 160 ~C. Overall, ethanol can function in the same manner as water but requires less energy to foam. It is proven based on the smaller drop in temperature of the asphalt binder foamed using ethanol compared with that prepared with water. This is due to the lower latent heat capacity of ethanol, which requires less energy to vaporize compared with water. Through the rotational viscometer test, ethanol performs better in lowering the viscosity of asphalt binders, which is essential in allowing produc- tion processes at low temperatures, as well as a better workability and aggregate coating. Ethanol can be expelled from the foamed asphalt binders at a higher rate due to its lower boiling point and latent heat.

关键词： Warm mix asphalt Foaming agent Ethanol-based foaming Expulsion rate Aging factor

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Review of sustainability, pretreatment, and engineering considerations of asphalt modifiers from the industrial solid wastes

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Journal of Traffic and Transportation Engineering(English Edition) 2019年第3期6卷 209-244页

作者： mohd Rosli mohd hasan J-Wei Chew Ali Jamshidi Xu Yang Meor Othman Hamzah School of Civil Engineering Universiti Sains Malaysia Nibong Tebal 14300 Pulau Pinang Malaysia School of Highway Chang'an University Xi'an 710064 China School of Science and Engineering University of Sunshine Coast Sippy Downs Queensland 4556 Australia Department of Civil Engineering Monash University Melbourne Victoria 3168 Australia

The escalating mass of solid waste at an overwhelming sum requires a global attention to strive for efficient waste management and to outsource the ecological treatments. The asphalt pavement industry that consumes a vast scale of natural resources while contributing to thermal and greenhouse emissions is viewed as a high potential alternative for the application of solid waste as asphalt modifier and substantial waste reduction. In efforts to urge for cleaner and greener asphalt production, a growing trend towards usage of solid waste as a renewable material is paving a sustainable future for the asphalt pavement industry. The economic options of incorporating solid waste into the asphaltic mixture coupled with proven effective performances are a green and cost-effective alternative to mitigate various pavement distresses. Various options either as coarse or fine aggregates and as fillers in powder, ash, or fibre form are to stimulate further research interest to incorporate a diversified range of solid waste into the asphalt binder and asphalt mixture. Prior to incorporating solid waste into the asphaltic mixture through the selected options, prerequisite tests in addressing engineering limitations due to the unknown properties of solid waste are reviewed. The concerns on environmental impact are given heavy metals leaching possibilities into water sources are addressed by Toxicity Characterization Leaching Procedure test, to leverage further the systematic reuse of solid waste in steering towards the cleaner production of the asphalt mixture. The microcosmic traits of solid waste namely surface morphology, mineralogical composition and chemical composition are summarized based on the usage of Scanning Electron Microscope, X-Ray Diffraction, and X-Ray Fluorescence, respectively. This systematic review is an enactment and stimulus for researchers to have a general overview before incorporating solid waste into asphalt mixture.

关键词： Asphalt modifier Waste materials Clean production Energy Carbon footprint Green pavement

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A hybrid strategy in selecting diverse combinations of innovative sustainable materials for asphalt pavements

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Journal of Traffic and Transportation Engineering(English Edition) 2016年第2期3卷 89-103页

作者： Baron Colbert mohd Rosli mohd hasan Zhanping You Keweenaw Bay Ojibwa Community College BaragaMI 49908USA Department of Civil and Environmental Engineering Michigan Technological UniversityHoughtonM149931USA School of Civil Engineering Universiti Sains Malaysia14300 Nibong TebalPulau PinangMalaysia

This project integrates recent innovations of recycled materials used in designing and building sustainable pavements. An increasing environmental awareness and the demand for improving economic and construction efficiencies, through measures such as con- struction warrantees and goals to reduce air pollution under the Kyoto Protocol, have increased the efforts to implement sustainable materials in roadways. The objective of this research is to develop a systematic approach toward selecting optimum combinations of sustainable materials for the construction of asphalt pavements. The selected materials, warm mix asphalt （WMA）, recycled asphalt shingles {RAS）I and reclaimed asphalt pave- ment {RAP） were incorporated in this study. The results of this research are intended to serve as guidelines in the selection of the mixed sustainable materials for asphalt pave- ments. The approach developed from this project draws upon previous research efforts integrating graphical modeling with optimizing the amount of sustainable materials based on the performance. With regard to moisture susceptibility and rutting potential test re- suits, as well as the MIM analysis based on a 95% confidence interval, the rutting perfor- mance and moisture susceptibility of asphalt mixtures are not significantly different regardless of the percentages of RAS, RAP, or WMA. The optimum mixture choices could be made by the plant emission rankings with consideration of the optimal WMA types, per- centages of RAS/RAP, and WMA production temperatures. The WMA mixtures prepared with 75% RAP and Advera WMA have produced the lowest CO2 emissions among the investigated mixture types.

关键词： Pavement material Asphalt Sustainability Emission Graphical modeling

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