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All Journal Indonesian Journal of Science and Technology Communications in Science and Technology Asean Journal of Science and Engineering (AJSE) Automotive Experiences
Hammouti, Belkheir
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Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Environmental Science Materials Science & Nanotechnology Mechanical Engineering

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Monitoring heavy metal contamination levels and microbiological pollution in seawater of Agadir coastal zones Bazzi, Illyass; Mouaden, Khadija El; Chaouay, Aicha; Addi, Abdelaziz Ait; Hamdani, Mohamed; Issami, Souad El; Hilali, Mustapha; Hammouti, Belkheir; Abbiche, Khalid; Salghi, Rachid
Indonesian Journal of Science and Technology Vol 5, No 3 (2020): IJOST: VOLUME 5, ISSUE 3, 2020
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/ijost.v5i3.26208

Abstract

The objective of this study was to monitor the bacteriological contamination of the seawater of the marine fisheries of the coastal Agadir, Morocco. The study was focused on the diagnosis on the pollution in heavy metals, such as cadmium, lead, and mercury in five zones: the port of Imi Ouaddar fish boarding (zone Z1), the old port of Agadir (zones Z2 and Z3), the port of Agadir Marina (zone Z4), and the estuary of Oued Souss (zone Z5). The analyses were done by testing physicochemical parameters (such as pH, temperature, dissolved oxygen, salinity and conductivity) as well as microbiological and atomic adsorption analyses. The experimental results showed that the values of the physicochemical parameters were almost the same in all zones, while the microbial conditions were different, in which this is due to the existence of heavy metals. The more heavy metal concentrations affected the condition of microbes in the sea water, confirmed by the number of Escherichia coli. This study demonstrated the importance of controlling concentration of heavy metals for better sustainability of environment.
Effects of Sustained Deficit Irrigation on Vegetative Growth and Yield of Plum Trees Under the Semi-Arid Conditions: Experiments and Review with Bibliometric Analysis Laita, Meriame; Sabbahi, Rachid; Elbouzidi, Amine; Hammouti, Belkheir; Messaoudi, Zerhoune; Benkirane, Rachid; Aithaddou, Houssain
ASEAN Journal of Science and Engineering Vol 4, No 2 (2024): AJSE: September 2024
Publisher : Universitas Pendidikan Indonesia (UPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/ajse.v4i2.64600

Abstract

This study evaluated sustained deficit irrigation on the production and quality of plum trees under the semi-arid conditions of the Saïs plain, with four water regimes: T0 (dose practiced by the farmer which may be equal to or greater than 100% ETc), T1 (100% ETc), T2 (80%ETc) and T3 (60%ETc) during the agricultural year 2017/2018. The results of the study showed a significant influence of the irrigation dose on vegetative parameters such as shoot diameter and length, physiological parameters such as leaf temperature, production parameters such as fruit yield per tree and fruit number per tree, and quality parameters such as acidity and sugar content. The fruits grown on T3 (60 %ETc)-treated trees had the highest sugar content. The total acidity of the fruit juice decreased with the increase in sugar content. In summary, the main parameters of vegetative growth, production, and quality were significantly affected by the reduction in irrigation dose. The findings also suggested that a 20% reduction in irrigation dose is feasible without significantly affecting the yield. A bibliometric analysis is conducted on the collected papers on Scopus on sustainable deficit irrigation and its impact on vegetative growth from 1999 to 2023.
Characterization, Acidifying, and Antibacterial Activity of Lactic Acid Bacteria Against Spoilage Strains Present in Chicken Meat Choukri, Soumaya; Bouigua, Hassan; Choukri, Niama; Hammouti, Belkheir; Mouniane, Yassine; Ettouil, Abdessamad; Rokni, Yahya; Ouhssine, Mohammed
ASEAN Journal of Science and Engineering Vol 3, No 3 (2023): AJSE: December 2023
Publisher : Universitas Pendidikan Indonesia (UPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/ajse.v3i3.60380

Abstract

Nowadays, through their beneficial roles, lactic acid bacteria have been used as natural additives for the formulation of several products especially in the food industry; as they reduce the pathogen load and improve the quality of fermented food. This work focuses on the technological study of five homolactic strains isolated from three fermented barley preparations belonging to three species: Lactobacillus plantarum, Pediococcus spp, and Lactococcus lactis ssp. The experiment focused on testing their acidifying activity and their antibacterial action against a range of spoilage strains isolated from chicken meat. The identification was carried out based on the study of the cultural, morphological characters and biochemical tests which revealed the presence of five strains namely: Escherichia Coli, Salmonella sp, Staphylococcus aureus, Proteus vulgaris, and Klebsiella pneumonia. The results obtained showed that the strains (SC1, SC4, and SC5) have acidifying activities, in parallel with a significant antibacterial effect compared to the other strains (SC2, SC3) whose respective values were 1.63±0.07%, 0.99±0.23% and 1.29±0.65% for SC1, SC4 and SC5. Moreover, the cell-free culture supernatant (CFCS) inhibition zones range from 19.5 ± 0.70 mm to 10.25 ± 0.35 mm.
Progress in the Developments of Heat Transfer, Nanoparticles in Fluid, and Automotive Radiators: Review and Computational Bibliometric Analysis Nandiyanto, Asep Bayu Dani; Al Husaeni, Dwi Novia; Obaidi, Abdulkareem Sh. Mahdi Al; Hammouti, Belkheir
Automotive Experiences Vol 7 No 2 (2024)
Publisher : Automotive Laboratory of Universitas Muhammadiyah Magelang in collaboration with Association of Indonesian Vocational Educators (AIVE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ae.10580

Abstract

This research aims to determine the development of the number of scientific publications in the field of particulate matter; the number of publications from each country that publish articles on heat transfer, nanoparticles, and automotive radiators; articles with the highest number of citations; and visualization publication development map based on keywords. To achieve this goal, quantitative descriptive research was carried out using bibliometric analysis with the help of the publish or perish (PoP) application to collect data and VOSviewer to visualize related research topics. The article data taken is limited to 2018-2023. In addition, the terms heat transfer, nanoparticles, and automotive radiators are used as keywords in collecting article data using the pop application. Research on heat transfer, nanoparticles, and automotive radiators has increased in 2020 and India has become one of the countries that has contributed many publications on this topic. From the mapping results, research on heat transfer, nanoparticles, and automotive radiators is still being carried out frequently, especially in early 2020-2021. This research can help academics determine which problems to research and can be used as a reference for further research.
A review of biomaterial as an adsorbent: From the bibliometric literature review, the definition of dyes and adsorbent, the adsorption phenomena and isotherm models, factors affecting the adsorption process, to the use of typha species waste as adsorbent N'diaye, Abdoulaye Demba; Kankou, Mohamed Sid' Ahmed; Hammouti, Belkheir; Nandiyanto, Asep Bayu Dani; Al Husaeni, Dwi Fitria
Communications in Science and Technology Vol 7 No 2 (2022)
Publisher : Komunitas Ilmuwan dan Profesional Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21924/cst.7.2.2022.977

Abstract

This paper presents a review of adsorption isotherms of some dyes from aqueous solutions by biomaterial. In this paper, we reported Typha waste as a model of biomaterial classified as a low-cost adsorbent. The paper also briefly discusses about the literature information from the definition of dyes and adsorbents, bibliometric analysis, adsorption phenomena, adsorption isotherm models, and factors affecting the adsorption, to the use of Typha species waste as a low-cost adsorbent. The operational parameters factors are explained in terms of pH, adsorbent dosage, contact time, and initial dye concentration that will affect the process of removing textile dye. The solution of pH turns out to be the most important condition in the adsorption process for anionic dye, a low pH value are preferable in contrast to cationic dye where the suitable pH value is high. For the adsorbent dose, the adsorption capacity increase along with the increment of adsorbent dosage due to the increase of theavailable amount of adsorption site. The contact time between the adsorbent and dye affects the efficiency of dye removal where a strong attraction force will shorten the time. As for the effect of dye initial concentration, increasing the initial concentration enhances the increment of adsorbent surface area to adsorb dyes. Several isotherm models are described. The Langmuir model is frequently used to evaluate the adsorption capacity of the Typha species waste as adsorbents. This review paper suggested that the accuracy level obtained from adsorption processes is greatly dependent on the successful modeling of adsorption isotherms. Typha biomaterial wastes can be considered as the new useful low-cost natural adsorbents for dye clean-up operations in aquatic systems.
Triazolopyrimidine Derivatives: A Comprehensive Review of Their Synthesis, Reactivity, Biological Properties, and Molecular Docking Studies Mrayej, Hajar El; En-nabety, Ghizlan; Ettahiri, Walid; Jghaoui, Mohamed; Sabbahi, Rachid; Hammouti, Belkheir; Rais, Zakia; Taleb, Mustapha
Indonesian Journal of Science and Technology Vol 10, No 1 (2025): IJOST: April 2025
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/ijost.v10i1.80301

Abstract

Triazolopyrimidines are heterocyclic compounds with a unique structure and a wide range of applications in medicinal chemistry. The versatility of the triazolopyrimidine scaffold allows for the exploration and development of compounds with diverse pharmacological properties. This literature review encompasses the period from 2014 to 2022 and offers a comprehensive and inclusive overview of the synthesis, reactivity, and biological properties studies of triazolopyrimidines. The review summarizes the various synthetic methods used to prepare triazolopyrimidines and their reactions with different reagents. It also examines their pharmacological properties, such as anti-COVID-19 and anticancer effects, and their molecular docking analysis with relevant targets. The review aims to contribute to a better understanding of the potential applications of triazolopyrimidine in the field of medicinal chemistry. This literature review from 2014 to 2022 provides a comprehensive exploration of triazolopyrimidines, highlighting their diverse applications in medicinal chemistry. The review aims to offer a thorough understanding of triazolopyrimidines' versatility, serving as a valuable resource for advancing drug development in medicinal chemistry.
Valorization of Imidazolium-Based Salts as Next-Generation Antimicrobials: Integrated Biological Evaluation, ADMET, Molecular Docking, and Dynamics Studies Merimi, Chaimae; Benabbou, Abdessamad; Fraj, Elmehdi; Khibech, Oussama; Yahyaoui, Meryem Idrissi; Asehraou, Abdeslam; Messali, Mousslim; Harrad, Mohamed Anouar; Challioui, Allal; Bouammali, Boufelja; Touzani, Rachid; Hammouti, Belkheir; Almutairi, Saud M.
ASEAN Journal of Science and Engineering Vol 6, No 1 (2026): (ONLINE FIRST) AJSE: March 2026
Publisher : Universitas Pendidikan Indonesia (UPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/ajse.v6i1.89789

Abstract

This study aimed to investigate the antimicrobial potential of four imidazolium-based salt derivatives (A1–A4) using an integrated approach that combined in vitro biological assays with computational analysis. The compounds were screened against various Gram-positive and Gram-negative bacteria, as well as fungal strains, while computational methods like ADMET predictions and molecular simulations assessed their viability and mechanism. The results revealed that compounds A3 and A4 possess potent antibacterial activity comparable to gentamicin, particularly against E. coli, with A3 also showing significant antifungal efficacy. These findings were strongly supported by computational analysis, which predicted favorable oral bioavailability, acceptable toxicity, and confirmed a stable binding interaction with the bacterial enzyme DNA gyrase. The primary implication is the identification of A3 and A4 as promising therapeutic candidates for developing new antimicrobials to combat drug-resistant pathogens, validating this integrated research strategy for future drug discovery.
Co-Authors Abbiche, Khalid Addi, Abdelaziz Ait Aithaddou, Houssain Al Husaeni, Dwi Fitria Al Husaeni, Dwi Novia Almutairi, Saud M. Asehraou, Abdeslam Asep Bayu Dani Nandiyanto Bazzi, Illyass Benabbou, Abdessamad Benkirane, Rachid Bouammali, Boufelja Bouigua, Hassan Challioui, Allal Chaouay, Aicha Choukri, Niama Choukri, Soumaya Elbouzidi, Amine En-nabety, Ghizlan Ettahiri, Walid Ettouil, Abdessamad Fraj, Elmehdi Hamdani, Mohamed Harrad, Mohamed Anouar Hilali, Mustapha Issami, Souad El Jghaoui, Mohamed Kankou, Mohamed Sid' Ahmed Khibech, Oussama Laita, Meriame Merimi, Chaimae Messali, Mousslim Messaoudi, Zerhoune Mouaden, Khadija El Mouniane, Yassine Mrayej, Hajar El N'diaye, Abdoulaye Demba Obaidi, Abdulkareem Sh. Mahdi Al Ouhssine, Mohammed Rais, Zakia Rokni, Yahya Sabbahi, Rachid Salghi, Rachid Taleb, Mustapha Touzani, Rachid Yahyaoui, Meryem Idrissi