Browsing by Author "Nurul Jannah Abd Rahman"
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Publication Al-Chemy: e-Learning Platform for Foundation Students(Institute of Advanced Engineering and Science (IAES) in collaboration with Intelektual Pustaka Media Utama (IPMU), 2023) ;Nur Ilyana Ismarau Tajuddin ;Nurul Jannah Abd Rahman ;Khairi Azhar Aziz ;Noorrezam YusopNor Aziyatul IzniThe unexpected closure of educational institutions as a result of the emergence of COVID-19 prompted the authorities to suggest adopting alternatives to traditional learning methods. E-learning is an innovative approach for delivering electronically mediated, well-designed, learner-centred interactive learning environments by utilizing internet and digital technologies with respect to instructional design principles. This paper presents the implementation and prototyping of an innovative web-based e-learning platform for chemistry course known as Al-Chemy. Al-Chemy was developed for foundation students at Tahmidi Centre, Universiti Sains Islam Malaysia. The rapid application development (RAD) methods have been used in developing Al-Chemy through website wix.com. Al-Chemy was structured with interactive notes, animation, virtual experiment, quizzes, and games. The combination of these activities helps students in learning basic and advanced concepts of chemistry. - Some of the metrics are blocked by yourconsent settings
Publication Alcohol In Food According To Scientific And Islamic Perspective And Its Neuropsychiatry Effects(Usuli Faqih Research Centre PLT., 2024) ;Nurul Jannah Abd Rahman ;Ummu-Hani AbasNadrahtul Huda MisralIn Islam, the consumption of alcohol is generally considered haram, which means it is forbidden or prohibited. There are rules that have been identified by jurists in measuring the halal or haram status of a product. There are permissible alcohols in food that are allowed to be consumed. The Istihalah concept is generally implemented by Islamic scholars in order to characterize the permissible alcohol present in food. Alcohols are among the most common organic compounds, identified by one or more hydroxyl (-OH) groups attached to a carbon atom of an alkyl group. Excessive alcohol consumption and alcohol drinking during adolescence specifically are the risk factors for the development of alcohol use disorder (AUD), anxiety, and other neuropsychiatric conditions during adulthood. It has been reviewed that neuropsychological testing of selective cognitive, sensory, and motor functions has enabled tracking the consequences of AUD, which involve the corresponding disruption of selective functions with respect to response inhibition, visuospatial, emotional, postural stability, mnemonic, and brain system supporting these functions. The nervous system is one of the structures that is most sensitive to alcohol. Alcohol affects the brain’s communication pathways, hence inducing brain and nervous system problems. Herein, a review with regard to alcohol in food from an Islamic perspective and its neuropsychiatry consequences will be discussed accordingly. - Some of the metrics are blocked by yourconsent settings
Publication Antibacterial Study Of Olive-based Ferulate Esters(World Journal of Pharmacy and Pharmaceutical Science, 2015) ;Nurul Jannah Abd Rahman ;Salina Mat Radzi ;Hanina Mohd NoorNorlelawati AriffinAntimicrobial study of synthesized ferulate esters was successfully carried out against both Gram-positive (Bacillus subtilis, Staphylococcus epidermidis and Staphylococcus aureus) and Gram-negative (Salmonella typhimurium, Klabsiella Pneumoniae and Escherichia coli) bacteria. Screening by agar diffusion test was employed for preliminary features followed by Minimum inhibitory concentration (MIC) and Minimum bactericidal concentration (MBC) assays. Ferulate esters demonstrated anti-bacterial activity with diameter of inhibition zones ranged from 8 to 16 mm for S. typhimurium, E. coli, S. epidermidis and S. aureus. For MIC assay, the minimum concentration of ferulate esters against E. coli was 50% followed by S. typhimurium (33.3%), S. epidermidis (20%) and S. aureus (20%). While for MBC assay, ferulate esters only showed bacteriostatic effect. Therefore, this research proved that the ferulate esters possess moderate antibacterial inhibition against both types of bacteria. - Some of the metrics are blocked by yourconsent settings
Publication Banastic-Lizer: Fabrication Of Eco-Friendly Plastic From Banana Peels(Kolej Genius Insan, USIM, 2022-11-29) ;Syahidil Erfan Syah Doris ;Muhammad Ikmal Arip ;Nur Adibah Mohd Nizam ;Nurul Jannah Abd RahmanHaslinawati Mohd MustaphaTons of plastic produced each year to fulfil human needs. However, the major issue arises on how to dispose of the plastic bags. Plastic bags contain chemicals originating from petroleum distillation products. Upon burning or burying those plastic bags, toxic chemical reactions can pose harms to the living things and the environment. Additionally, plastics need approximately around 500 years to completely decompose. Therefore, we introduce Banastic-lizer as a green plastic as the solution to these problems. This project enables the fabrication of the eco-friendly plastic material from banana peels which is biodegradable in nature and reduce the harmful effects of material decomposition to the Earth. In fact, the banana peels have antioxidant properties, fibrous structures and essential nutrients. As the results, the Banastic-lizer is safe for the application by consumers without giving any harmful side effects. Plus, it can be used as a fertilizer due to the high content of nutrients. This eco-friendly plastic has a chance to be commercialized due to its affordable cost. As a conclusion, the conservation of the environment can be achieved if we continue using the green and environmentally friendly products. With this project, we hope that it could be a kick-start towards the efforts of saving the Earth in the coming future. - Some of the metrics are blocked by yourconsent settings
Publication Dual Lipases System In Transesterification Of Ethyl Ferulate With Olive Oil: Optimization By Response Surface Methodology(Asian Journal of Applied Sciences (AJAS), 2015) ;Nurul Jannah Abd Rahman ;Salina Mat RadziHanina Mohd NoorA novel and simple dual lipases system was effectively developed in attaining high performance of ferulate esters by transesterification between ethyl ferulate and olive oil. Enzyme screening revealed 1: 9 w/w of Novozym 435-Lipozyme RMIM to be the most efficient lipases ratio for the reaction synthesis. Response surface methodology (RSM) based on four-factor-five-level central composite design (CCD) was used to study interactive effects of reaction factors: time, lipase dosage, ratio substrates and temperature. A high percent conversion of 94.03 % was achieved under the optimum conditions of 12 h, 87 mg lipases, 1: 2 ratio substrates and 60 áµ’C, which compared well with the maximum predicted value of 94.83 %. - Some of the metrics are blocked by yourconsent settings
Publication Navigating The Vast Seas Of Siwak Or Miswak Scholarship: A Detailed Exploration Of Scopus Publications To Unearth Trends, Patterns, And Future Directions(SPRINGER, 2024) ;Nusairah Ramli ;Nurul Jannah Abd Rahman ;Nadrahtul Huda Misral ;Ummu-Hani Abas ;Nor Haliza Mat-BaharinJuliana JumalThis research aims to evaluate the level of scientific research output concerning Siwak or Miswak using Scopus during the period 2014 to 2024 by employing bibliometrics indicators such as articles, types of documents in this field of research, contributions among different countries, institutions wise contribution, preference of journals for communication this research area. A thorough examination was undertaken on 245 English records sourced from Scopus databases to yield insights. The results highlight a notable escalation in the annual publication of scientific research across the globe. Saudi Arabia (179), and Egypt (107) emerged as the leading contributors on the list India (85) occupies the third rank in global countries’ production over time. The most relevant sources by research for siwak or miswak title were the Molecules with a count of 6 (3.31%). In addition to this, the graphical mapping of data is represented by VOS Viewer and Biblioshinybibliometric mapping software for a better understanding. - Some of the metrics are blocked by yourconsent settings
Publication Penilaian Konstruktif Untuk Aktiviti Makmal Kimia Bagi Pra-, Semasa dan Pasca: Penggunaan Platform Pembelajaran Sejagat(Penerbit USIM, 2023) ;Siti Rubaini Mat ;Latipah Mohd Noor ;Afif Arifin ;Nurul Jannah Abd RahmanNadrahtul Huda MisralMerekabentuk penilaian amali yang konstruktif adalah elemen penting dalam pendidikan sains. Disebabkan penularan wabak COVID-19, pembelajaran berasaskan dalam talian telah diamalkan secara global, memaksa pengajian wajib dijalankan dari rumah. Walaupun terdapat kelemahan, terdapat banyak kebaikan yang perlu dipertimbangkan. Penilaian makmal kimia di Pusat Tamhidi USIM melibatkan gabungan pembelajaran maya dan fizikal. Terdapat tiga fasa termasuk penilaian pra, semasa dan pasca makmal. Video H5P (kandungan video interaktif berasaskan HTML5) ialah penilaian pra-makmal yang perlu pelajar cuba sebelum menjalankan eksperimen. Mereka akan mengakses video H5P melalui platform dalam talian, Global Open Access Learning System (GOALS) di mana mereka perlu menonton video pendek berkenaan dengan eksperimen dan menjawab beberapa soalan sepanjang video yang dirakamkan. Aktiviti atau penilaian pra-makmal ini akan membantu pelajar untuk mendapatkan gambaran keseluruhan berkaitan eksperimen yang akan dijalankan serta pengajar dapat membuat pra-penilaian kepada pelajar. Penilaian makmal psikomotor dijalankan semasa amali makmal. Pelajar dinilai berdasarkan prestasi mereka dalam menjalankan eksperimen dan dinilai oleh pengajar mengikut penilaian rubrik. Penilaian terakhir penilaian makmal ialah aktiviti pasca makmal. Ia melibatkan platform dalam talian GOALS di mana pelajar diberi masa 15 minit untuk menjawab 10 soalan aneka pilihan berkenaan eksperimen yang telah mereka jalankan. Secara keseluruhannya, ini adalah penilaian konstruktif untuk aktiviti makmal yang telah diperkenalkan dan dilaksanakan oleh Unit Kimia di Pusat Tamhidi. Pelaksanaan penilaian ini membawa kepada penilaian yang komprehensif berkenaan dengan amali makmal. - Some of the metrics are blocked by yourconsent settings
Publication Preliminary Study on the Use of Magnetize Fe3o4-Zro2 Catalyst For Biodiesel Production(Penerbit USIM, 2023) ;Nurul Jannah Abd Rahman ;Afifah Mardhiah Zoolcaphly ;Farah Wahida HarunSalina Mat RadziPlant oil as second generation biofuel especially waste cooking oil has been found to simplify the shortcomings experienced by its predecessors. However, high free fatty acid content represents the major limitation which requires the waste cooking oil to undergo a two-step process to produce biodiesel. As an alternative, in this study, Fe3O4-ZrO2 catalysts were developed for simultaneous esterification–transesterification of waste cooking oil to biodiesel. The magnetic function of Fe3O4 has the advantage in the separation process, avoid the loss of catalyst and increase its reusability. First, Fe3O4 was synthesized using co-precipitation method where FeSO4.7H2O and FeCl3.6H2O were combined in deionized water to form black precipitate. Then, the precipitate was dried at 40°C for 24 hours. The Fe3O4-ZrO2 catalysts were further synthesized using various Fe3O4 loadings (10- 30 wt.%) via incipient wetness impregnation method, dried at 120 °C followed by calcination at 700 °C for 5 hours. All catalysts were characterized using Thermogravimetric Analysis (TGA) for degradation behaviour and Fourier Transform Infrared Spectroscopy (FTIR) to detect the functional groups presence. It was found that the highest biodiesel yield was achieved by 20Fe-Zr catalyst using 12:1 methanol to oil ratio and 10wt% catalyst loading at 60°C for 7 hours. - Some of the metrics are blocked by yourconsent settings
Publication The use of new Dual Lipases System in the synthesis of Ferulate Esters: optimization by response Surface Methodology(Universiti Sains Islam Malaysia, 2015)Nurul Jannah Abd RahmanA novel and simple dual lipases system was developed in attaining high performance of ferulate esters by transesterification reaction between ethyl ferulate and olive oil. Detection and identification of reaction products were facilitated by Fourier Transform Infrared (FTIR). Enzyme screening revealed 1: 9 w/w of Novozym 435-Lipozyme RM IM to be the most efficient lipases ratio for the reaction synthesis. By varying one-parameter-at-a-time, 60 degree celcius of reaction temperature, 12 hrs of incubation time, 80 mg of lipase dosage and 1: 2 of ethyl ferulate: olive oil ratio were shown to be the optimal and suitable reaction conditions. Response surface methodology (RSM) based on four-factor-five-level central composite design (CCD) was further used to study the interactive effects among the parameters. The best fitting model was quadratic polynomial where incubation time exhibited most significant effect over the other three parameters. A high percent conversion of 94.03 % was achieved under the optimum conditions, which compared well with the maximum predicted value of 94.83 %. Biological study of ferulate esters was measured based on their antimicrobial properties against both Gram-positive and Gram-negative bacteria. Screening by agar diffusion test was employed as preliminary features followed by minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) assays. The results proved that the ferulate esters posses moderate antibacterial inhibition against Gram-positive and Gram-negative bacteria. Their physicochemical properties were also well examined through sun protection factor (SPF) value, peroxidase value, saponification value and iodine value.