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Baiq Nurul Hidayati
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MASALIQ: Jurnal Pendidikan dan Sains
Published by Lembaga Yasin Alsys
ISSN : 28091051     EISSN : 28088115     DOI : -
Core Subject : Religion, Education, Social,
Religion Education Social Sciences
MASALIQ: Jurnal Pendidikan dan Sains was published by Lembaga Yasin alSys which was published six times a year, January, March, May, July, September and November with a minimum of 5 articles. The journal aims to provide a forum for scholarly understanding of the field of education and plays an important role in promoting the process that accumulated knowledge, values, and skills.
Arjuna Subject : Ilmu Sosial - Pendidikan
Articles 607 Documents
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Karakteristik Pola Pertumbuhan Bakteri Termofilik Isolat MS-12 dari Sumber Air Padas Mudiak Sapan Uthami, Feranis Nadia; Irdawati, Irdawati
MASALIQ Vol 4 No 1 (2024): JANUARI
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/masaliq.v4i1.2621

Abstract

The growth pattern of thermophilic bacteria can be observed through turbidity testing, representing each growth phase: lag, exponential, stationary, and death phases. To evaluate and understand the growth pattern of thermophilic bacteria, particularly MS-12 isolate from the Mudiak Sapan (MS) hot springs, it can be analyzed through Optical Density (OD) testing using a UV-Vis spectrophotometer (600 nm). The OD test is commonly employed to determine the turbidity level in a solution by measuring the light passing through the solution, proportional to the number of cells or particles within it. The testing method used in this study is descriptive with two replications. The research was conducted at the Microbiology Laboratory, Faculty of Mathematics and Natural Sciences, Padang State University on December 9, 2023. Bacteria were incubated for 12 hours at a temperature of 50ºC, and their growth was measured using a UV-Vis spectrophotometer with a wavelength of 600 nm. Turbidity measurements were taken every 2 hours during the 12-hour incubation period. The growth pattern of MS-12 bacterial isolate, as observed from the measurements, can be considered favorable. At the 2-hour measurement in the second hour, bacterial growth averaged at 0.1535 (lag phase). Measurements from the 3rd to the 8th hour reached an average of 0.8105 (exponential phase). The 9th and 10th hours exhibited a stationary phase, while the measurements in the last 2 hours indicated a death phase, signifying a decline in the bacterial growth pattern.
Penggunaan Katalis SiO2/ZnO untuk Menghilangkan Pewarna Rhodamin B Secara Efisien melalui Impregnasi Basah Luthfi, Muhamad; Afrizon, Imam Wahyudi
MASALIQ Vol 4 No 1 (2024): JANUARI
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/masaliq.v4i1.2631

Abstract

This study explores the removal of Rhodamine B dye from wastewater using SiO2/ZnO catalysts synthesized by wet impregnation with varying zinc nitrate loadings (0.25–1.25 g). The catalyst prepared with 1 g of Zn(NO₃)₂ exhibited the highest activity, achieving a remarkable 95% degradation of Rhodamine B under UV irradiation. This enhanced performance is attributed to optimized active site availability on the catalyst surface. FTIR characterization confirmed the presence of both SiO₂and ZnO, with characteristic vibrational modes observed at 1067.44 cm⁻¹ and 428.72 cm⁻¹, respectively. These findings highlight the promising potential of tailored SiO₂/ZnO catalysts for efficient and environmentally friendly treatment of dye-contaminated wastewater.
Produksi Biolistrik dengan Microbial Fuel Cell (MFC) dari Bakteri Termofilik Vestimarta, Aldi Wahyuda; Irdawati, Irdawati
MASALIQ Vol 4 No 1 (2024): JANUARI
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/masaliq.v4i1.2632

Abstract

The current availability of electrical energy is not proportional to the large demand. This emphasizes the importance of saving electrical energy. To replace fossil fuel power plants that cannot be renewed. So Microbial Fuel Cells (MFC) is used, which is a technology that is able to convert chemical energy from organic matter into electrical energy through the process of oxidation and metabolism of anaerobic bacteria in electroactive biofilms at the anode. This study aims to determine the production of bioelectricity with Microbial Fuel Cell using consortium thermophilic bacteria on TMM substrate. This research was conducted in November 2023 in the microbiology laboratory, FMIPA, UNP. Data analysis was carried out descriptively by displaying images and graphs. Observation of the development of SSA 16 thermophilic bacteria was carried out for 24 hours by checking the voltage once every 2 hours. And the highest voltage result was 749 mv at the 10th hour of measurement.
Isolasi dan Karakterisasi Bakteri Asam Laktat (BAL) pada Fermentasi Durian Montong (Durio zibethinus Murr.) Viona, Alda; Fevria, Resti; Irdawati, Irdawati; Putri, Dwi Hilda
MASALIQ Vol 4 No 1 (2024): JANUARI
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/masaliq.v4i1.2636

Abstract

Lactic acid bacteria is a group of bacteria that produce lactic acid as the main product in fermentation. Tempoyak is a processed durian fruit product made by anaerobic spontaneous fermentation for 3-7 days. The fermentation process that occurs in making tempoyak is lactic acid fermentation. Carbohydrates are broken down into glucose, then BAL will ferment the glucose to produce lactic acid (main product), ethanol and CO2 (by-product). The aim of this research was to isolate lactic acid bacteria (LAB) from fermented durian. This research method is descriptive. 8 BAL isolates were obtained and identified macroscopically and microscopically by gram staining method. Based on the research that has been done, colonies of gram-positive bacteria in the form of bacilli and coccus cells were obtained. Gram-positive bacteria have cell wall characteristics with thicker peptidoglycan so that color absorption from violet crystals absorbed in cells will survive.
Cendawan dari Cairan Ecoenzyme dan Mama Enzyme Berbahan Organik Kulit Jeruk dan Kulit Rambutan Harlin, Farah Ibtisamah; Handayani, Dezi
MASALIQ Vol 4 No 1 (2024): JANUARI
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/masaliq.v4i1.2641

Abstract

Ecoenzyme is a fermented mixture of organic waste, sugar and water in a ratio of 3:1:10. The results of fermentation can be liquid ecoenzyme, mama enzyme, and pitera. During the ecoenzyme fermentation process, microbes found in organic materials play a role in breaking down organic compounds to produce various useful metabolite compounds. The microbes found in ecoenzyme are generally Lactic Acid Bacteria (LAB) and fungi, but there is no literature that explains the types of fungi found in ecoenzyme liquid and mama enzyme from a mixture of several types of fruit peel. So it is necessary to isolate and identify the fungus from ecoenzyme and mama enzyme liquid with a mixture of orange peel and rambutan. This research is a descriptive study, with stages of equipment sterilization, making Potato Dextrose Agar (PDA) medium, making and taking ecoenzyme samples, isolating ecoenzyme samples, purifying fungi, macroscopic and microscopic observations, and identifying fungi. Data on the number of isolates and types of fungi isolated from ecoenzyme samples were analyzed descriptively and displayed in the form of tables and figures. The fungus that was successfully isolated from ecoenzyme and mama enzyme liquid with a mixture of orange peel and rambutan peel was 5 isolates. Two isolates belong to the mold group which refers to the genus Trichoderma and the genus Paecilomyces, three isolates belong to the yeast group, but have not been identified to the genus level.
Modifikasi Ducted Fan untuk Kebutuhan Pengarah Aliran Semprotan Pupuk Cair Afabek, Randa; Nurdin, Hendri
MASALIQ Vol 4 No 1 (2024): JANUARI
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/masaliq.v4i1.2643

Abstract

The use of agricultural drones has now experienced significant development. However, in its use it is often considered less effective because the liquid fertilizer sprayed through the nozzle tip is not on target. Then we need an additional tool in the form of a ducted fan which can increase the speed of the flow of fertilizer sprayed through the nozzle. This study uses a modification and reconstruction method of the ducted fan model that is already on the market so that it can be used as a flow guide. The modifications made are in the form of adding a cone with a size according to the hub and a height of 5 mm and a stator which is almost the same size as the fan which is around 65 mm and has the reverse direction, namely counter clock wise which functions as a flow guide. The results of the CFD research that has been carried out can be seen that the flow velocity at the outlet is 5.38394 m/s and the width of the flow which was originally 0.113791 m became 0.021235 m. Based on the results of the study it can be concluded that the fluid flow passing through the ducted fan looks smaller and directional so that it is in accordance with the purpose of the modifications that have been made and the flow speed increases so that the flow does not fly with the wind.
Simulasi Kekuatan Mata Pisau Traktor Pemanen Jagung dengan Variasi Sudut Menggunakan Solidwork Harahap, Doa; Waskito, Waskito; Nurdin, Hendri; Rifelino, Rifelino
MASALIQ Vol 4 No 1 (2024): JANUARI
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/masaliq.v4i1.2644

Abstract

The corn harvesting tractor is one of the innovations in agricultural technology. However, there is a problem where the harvesting blade is broken and wears out quickly. One of the factors causing the problem is the angle of inclination of the blade. The smaller the angle of inclination of the blade, the sharper it is but the risk of being easily broken and worn out. For this reason, it is necessary to test the value of the blade slope which has a good strength value. Before this knife is made directly, it is necessary to design and simulate the strength of the blade with a variety of angles. Experimental testing requires expensive costs and a lot of time. The simulation carried out is a static simulation with the finite element method in the solidwork application with AISI 1045 material and 87.05 N force load. The blade with an angle of 310 is the best angle with the maximum value of stress at the connection of the shaft and knife with a value of 20.664 MPa and the displacement results are at a maximum value of 0.018 mm.
Pengaruh Ukuran Partikel dan Laju Alir terhadap Penyerapan Ion Logam Pb2+ pada Kulit Langsat (Lansium Domesticum) Hamid, Syafira Putri; Kurniawati, Desy
MASALIQ Vol 4 No 1 (2024): JANUARI
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/masaliq.v4i1.2654

Abstract

The presence of heavy metals is quite a serious problem, considering that their numbers continue to increase. Efforts to handle it have been carried out using various methods. An effective and cheap method is the biosorption method. This research to determine the absorption capacity of langsat peel (Lansium domesticum) for the absorption of Pb2+ metal ions using a column method. The parameters studied to determine optimum conditions were biosorbent particle sizes with size variations of 106, 150, 250 and 425 μm and flow rates of 1.2, 3.4 mL/minute. The results showed that the biosorption of Pb2+ metal ions was influenced by the biosorbent particle size and flow rate. The optimum particle size of the biosorbent is 106 μm and a flow rate of 1 mL/minute, with an absorption capacity of 14.615 mg/g and 14.345 mg/g, respectively.
Simulasi Numerik Variasi Intake terhadap Karekteristik Aliran pada Basin Turbin Vortex Andri, Rezky; Yuvenda, Dori; Purwantono, Purwantono
MASALIQ Vol 4 No 1 (2024): JANUARI
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/masaliq.v4i1.2666

Abstract

Water has an important role to be used as a source of electrical energy, water is used to drive turbines that will later produce electrical energy, water turbines have great potential to be developed, especially in vortex turbines. A vortex turbine is a turbine that utilizes whirlpool energy to rotate the turbine blades and then convert it into electrical energy. The purpose of this study was to determine the characteristics of the flow in each inflow variation in the vortex turbine basin. The simulation in the study was carried out using solidworks 2023 software using the CFD (Computational Fluid Dynamics) method. After running simulations, velocity data were obtained on each Outer Wall Tangential inflow design of 0.496 m/s, Involute of 0.517 m/s, Ramped Entry of Scrolled Evolute of 0.0857 m/s, and Involute Ramp of 0.551 m/s. pressure in each Outer Wall Tangential inflow design of 100,793.39 N/, Involute of 99,400.12 N/, Ramped Entry of Scrolled Evolute of 99,270.4 N/, and Involute Ramp of 99,324.31 N/. From the simulation results, it can be seen that the largest velocity is obtained in the Ramped Entry of Scrolled Evolute design, and the largest pressure is obtained in the Outer Wall Tangential design.
Analisis Pengaruh Jumlah Mata Pisau terhadap Daya dan Waktu pada Mesin Pengiris Bawang Saputra, Ilham Dwi; Nurdin, Hendri; Sari, Delima Yanti; Adri, Junil
MASALIQ Vol 4 No 1 (2024): JANUARI
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/masaliq.v4i1.2667

Abstract

Shallot (Allium ascalonicum L) is a horticultural commodity classified as a spice vegetable. According to the Central Bureau of Statistics, shallot production in Indonesia in 2021 reached 2.01 million tons. This figure increased by 10.42 percent compared to the 2020 production which reached 189.15 thousand tons. Fried shallots are one of the processed forms of shallots which in the manufacturing process go through the slicing stage. Research on this onion slicing machine has been done a lot. Similar research discusses analyzing the development of a more efficient slicing machine. Things that must be considered in the process of making slicing machine construction are the number of blades, power consumption, time and slice results. The purpose of this research is to be able to analyze variations in the number of blades properly for onion slicing machines and find out their effect on power consumption, slicing time and slice results. This research uses the Experiment research method with the help of Microsoft Excel 2019 software. The results showed that the greater the variation in the number of blades, the lower the power consumption and slicing time and it was found that the level of damage to the sliced results was greater the more the number of blades. The conclusion of this research is that the greater the variation in the number of blades, the lower the power consumption and slicing time. The sharpness and length of the blade affect the results of sliced onions.

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