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Baiq Nurul Hidayati
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Jalan Lingkok Pandan No 208 Kwang Datuk, Desa Selebung Ketangga, Kec. Keruak, kab. Lombok Timur, Prov. Nusa Tenggara Barat, Indonesia
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INDONESIA
MASALIQ: Jurnal Pendidikan dan Sains
Published by Lembaga Yasin Alsys
ISSN : 28091051     EISSN : 28088115     DOI : -
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.
Articles 778 Documents
Potensi Kulit Tuna (Thunnus sp.) sebagai Sumber Gelatin melalui Pretreatment Asam Kandis dan Ultrasonikasi Khairannisa Khairannisa; Syamsi Aini
MASALIQ Vol 6 No 4 (2026): JULI
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/masaliq.v6i4.10703

Abstract

Although gelatin extraction from tuna skin has been widely studied, the use of asam kandis as a natural acid combined with ultrasonic bath assistance remains limited. This study aimed to determine the physicochemical characteristics and functional groups of tuna skin gelatin extracted using asam kandis and an ultrasonic bath. This study employed a quantitative approach with a laboratory experimental design. The extraction process included pretreatment using 0.1 M NaOH for 2 hours, soaking in an asam kandis solution at pH 2.4 for 1 hour, and extraction using an ultrasonic bath at 55 °C for 90 minutes. The data were analyzed through tests of yield, moisture content, ash content, fat content, pH, viscosity, and Fourier Transform Infrared (FTIR) analysis. The results showed that the gelatin produced had a yield of 12.45%, moisture content of 10.14%, ash content of 1.62%, fat content of 1.46%, pH of 6.51, and viscosity of 1.99 cP, thereby meeting gelatin quality standards. FTIR analysis identified characteristic gelatin absorption bands at wavenumbers of 3278 cm⁻¹ (Amide A), 1633 cm⁻¹ (Amide I), 1531 cm⁻¹ (Amide II), and 1243 cm⁻¹ (Amide III). These findings indicate that the combination of asam kandis and an ultrasonic bath can produce tuna skin gelatin with good physicochemical characteristics and has the potential to be developed as an alternative to commercial gelatin.
Pemanfaatan Limbah Kulit Ikan Marlin (Makaira nigricans) sebagai Sumber Gelatin dengan Pretreatment Asam Kandis Viona Oktafiani; Syamsi Aini
MASALIQ Vol 6 No 4 (2026): JULI
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/masaliq.v6i4.10825

Abstract

Marlin fish skin is a by-product of the fisheries industry that contains collagen and has the potential to be utilized as an alternative gelatin raw material, but its utilization through natural acid-based pretreatment and ultrasonically assisted extraction remains limited. This study aims to evaluate the utilization of marlin fish skin waste as a source of gelatin through kandis acid pretreatment and ultrasonically assisted extraction. This study used an experimental method with pretreatment stages using kandis acid, followed by extraction using an ultrasonic bath. The resulting gelatin was analyzed based on yield, physicochemical properties, and functional groups using Fourier Transform Infrared Spectroscopy (FTIR). The results of the study show that marlin fish skin gelatin produced a yield of 9.20%, moisture content of 9.91%, ash content of 0.49%, fat content of 1.99%, pH of 6.56, viscosity of 2.33 cP, melting point of 21°C, and gel point of 3°C. The moisture content, ash content, fat content, pH, and viscosity values met the quality requirements of SNI 06-3735-1995 and GMIA (2019). FTIR analysis identified Amide A bands at 3275 cm⁻¹, Amide I at 1632 cm⁻¹, Amide II at 1530 cm⁻¹, and Amide III at 1242 cm⁻¹, indicating similarity to standard gelatin. The conclusion of the study affirms that marlin fish skin waste can be utilized as a source of gelatin through kandis acid pretreatment and ultrasonically assisted extraction, with physicochemical characteristics that meet quality requirements. These findings have implications for developing the utilization of fisheries by-products as value-added alternative gelatin raw materials and have the potential to support the development of commercial gelatin products.
Analisis Biochemical Oksigen Demand (BOD) pada Sampel Air Sungai Konsumen Menggunakan Metode Winkler di UPTD Laboratorium Lingkungan Kota Pariaman Mutiara Dea Ananda; Miftahul Khair
MASALIQ Vol 6 No 4 (2026): JULI
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/masaliq.v6i4.10828

Abstract

Biochemical Oxygen Demand (BOD) is an important parameter in water quality assessment because it indicates the amount of dissolved oxygen required by microorganisms to biologically degrade organic compounds. This study aims to analyze BOD values in river water samples in Pariaman City as an indicator of the level of organic pollution in aquatic environments. Testing was conducted using the BOD method by measuring dissolved oxygen (DO) levels on day 0 and day 5 after incubation at 20 ± 1 °C. The analyzed samples consisted of three sample codes, namely S.186, S.187, and S.188. The test results showed that all samples experienced a decrease in DO levels after five days of incubation. The BOD values obtained were 2.84 mg/L in sample S.186, 1.95 mg/L in sample S.187, and 3.28 mg/L in sample S.188, respectively. The highest BOD value was found in sample S.188, indicating a higher organic matter content than the other samples. The quality control results showed that the blank, mineral-free water, glucose-glutamate standard, and percentage Relative Percent Difference (%RPD) met the method requirements, so the test data were declared valid. The conclusion of the study shows that the water quality of the analyzed samples was in the low to moderate pollution category. These findings have implications as supporting data in the evaluation of river water quality through environmental laboratory testing and as a basis for periodic water quality monitoring.
Makna Menyendiri pada Individu Introvert di Masa Remaja dan Dewasa Awal Putroe Habibul Ummi; Sri Nurhayati Selian
MASALIQ Vol 6 No 4 (2026): JULI
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/masaliq.v6i4.10911

Abstract

Although introverted personality has been widely examined in psychological research, studies that specifically discuss the subjective meaning of solitude among adolescents and young adults with introverted tendencies remain limited. Previous studies have tended to focus on patterns of social interaction, loneliness, and psychological well-being through quantitative approaches. This study aims to explore the meaning of solitude among individuals with introverted tendencies during adolescence and early adulthood. This study used a qualitative approach with a phenomenological design, involving three participants aged 18–20 years who were selected using purposive sampling. Data were collected through in-depth interviews and field notes, and were then analyzed using phenomenological analysis techniques. The results showed that solitude was interpreted as a positive psychological need because it functions as a means of self-reflection, emotional regulation, and energy recovery after social interaction. The experience of solitude was influenced by internal factors in the form of emotional fatigue and external factors in the form of unpleasant social experiences. However, excessive solitude has the potential to cause loneliness and a tendency toward overthinking. These findings contribute to the development of studies on personality psychology and psychological well-being by emphasizing that solitude can be understood as an adaptive strategy, rather than merely a form of maladaptive social withdrawal. The conclusion of this study emphasizes the importance of a balance between time spent in solitude and social interaction in maintaining the psychological well-being of individuals with introverted tendencies.
Deskripsi Model Mental Peserta Didik pada Sub Topik Faktor-Faktor yang Mempengaruhi Laju Reaksi di Kelas XI SMAN 12 Padang Dede Dwika Firmansah; Dwi Finna Syolendra
MASALIQ Vol 6 No 4 (2026): JULI
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/masaliq.v6i4.10913

Abstract

Although understanding the concept of reaction rate in chemistry learning does not depend only on memorization ability but also on students’ mental models in connecting macroscopic, submicroscopic, and symbolic representations, students still often experience difficulty in comprehensively understanding the factors that affect reaction rates. This study aims to describe students’ mental models regarding the factors that affect reaction rates. This study used a qualitative method involving 30 eleventh-grade students of SMAN 12 Padang as research subjects. Data were collected using an essay test instrument covering two main topics, namely the concept of the factors that affect reaction rates, including concentration, surface area, temperature, and catalysts, as well as the application of these concepts in the form of curves and images. The data were analyzed by categorizing students’ answers into three mental model categories, namely initial (I), synthetic (ST), and scientific (SC) mental models. The results showed that students were better able to explain concepts at the macroscopic representation level than at the submicroscopic and symbolic levels. Students’ mental models regarding the factors that affect reaction rates were dominated by initial mental models at 48%, followed by scientific mental models at 28% and synthetic mental models at 24%. In addition, the relationship between chemical representations and students’ mental model categories showed a pattern that was almost aligned with the characteristics of the chemical representations possessed by the students. These findings confirm that mental model analysis is important for identifying students’ level of conceptual understanding and potential misconceptions in learning reaction rates. The implications of this study contribute to the development of chemistry learning strategies that place greater emphasis on the integration of macroscopic, submicroscopic, and symbolic representations.
Pengembangan Instrumen Tes Esai untuk Mengukur Model Mental Peserta Didik pada Materi Ikatan Kimia Sofia Fadila; Dwi Finna Syolendra
MASALIQ Vol 6 No 4 (2026): JULI
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/masaliq.v6i4.10935

Abstract

As abstract subject matter, chemical bonding requires an understanding of submicroscopic concepts that cannot be observed directly, thereby potentially causing misconceptions among students. This understanding can be examined through mental models; however, instruments specifically designed to measure them in chemical bonding topics remain limited. This study aims to produce a valid essay test instrument for measuring students’ mental models in chemical bonding topics. This study used the Plomp development model up to the prototype III stage. Instrument validity was analyzed using Aiken’s V formula with the validity criterion of V ≥ 0.9. The study was conducted at the Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Padang, involving three Chemistry lecturers from the Faculty of Mathematics and Natural Sciences, Universitas Negeri Padang, as expert validators, two senior high school chemistry teachers at the needs analysis stage, and six Grade XI students of SMAN 14 Padang at the individual evaluation stage. The results showed an average Aiken’s V value of 0.93, with details of 0.91 for the content component, 0.91 for the construct component, and 0.97 for the language component, all of which were categorized as valid. At the individual evaluation stage, six students gave an average score of 4.26 out of 5.00, or 85%, indicating a highly positive response. The developed instrument integrates three levels of chemical representation, namely macroscopic, submicroscopic, and symbolic, and is equipped with a scoring rubric based on three categories of mental models, namely Scientific Model, Synthesis Model, and Initial Model. The conclusion of this study confirms that the developed essay test instrument is valid for measuring students’ mental models in chemical bonding topics. These findings contribute to the development of chemistry assessment instruments oriented toward conceptual understanding and can be used as a basis for evaluating learning in abstract subject matter.
Pengaruh Konsentrasi Oksidasi NaIO4 dan NaCIO terhadap Pembentukan Gugus Karbonil pada Permukaan Selulosa sebagai Adsorben untuk Adsorpsi Logam Pb(SO4) Sri Rahma; Jon Efendi
MASALIQ Vol 6 No 4 (2026): JULI
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/masaliq.v6i4.10937

Abstract

Heavy metal pollution, particularly lead (Pb), has become an urgent environmental issue, thereby requiring the development of effective and sustainable adsorbent materials. Cellulose, as a natural biopolymer, has potential as an adsorbent, but its adsorption capacity remains limited due to the low number of active groups on its surface. This study aims to evaluate the effect of sodium periodate (NaIO₄) and sodium hypochlorite (NaClO) concentrations on the formation of carbonyl groups in cellulose as a prospective adsorbent for Pb ions. This study used a laboratory experimental method by modifying cellulose through variations in NaIO₄ concentrations of 0.01 M and 0.02 M, followed by an oxidation process using NaClO. The modified products were characterized using Fourier Transform Infrared Spectroscopy (FTIR) to identify changes in functional groups after the oxidation process. The FTIR analysis results showed the presence of an absorption peak at a wavenumber of 1641 cm⁻¹, indicating the formation of carbonyl groups (C=O), as well as absorption peaks at 3333.9 cm⁻¹ and 1030 cm⁻¹, which respectively indicated the presence of O–H and C–O groups characteristic of cellulose. Increasing the oxidant concentration resulted in a higher carbonyl peak intensity, indicating an increased degree of oxidation on the cellulose surface. Thus, cellulose modification using NaIO₄ and NaClO was proven to increase the number of active groups on the cellulose surface. These findings contribute to the development of environmentally friendly biomass-based adsorbent materials with potential use for the adsorption of heavy metal ions, particularly Pb.
Studi In Silico Turunan Imidazopirimidin sebagai Agen Antikanker Payudara terhadap Protein ER-α, ADMET, dan Drug-Likeness Muhammad Chandra; Fajriah Azra
MASALIQ Vol 6 No 4 (2026): JULI
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/masaliq.v6i4.10974

Abstract

Breast cancer is one of the leading causes of global mortality, requiring the development of new therapeutic agents that are more effective and selective. This study aims to evaluate the potential of 20 imidazopyrimidine derivative compounds as candidate selective inhibitors of Estrogen Receptor Alpha (ER-α). This study used an in silico approach that included molecular docking using MOE 2019.0102 software with ER-α target protein (PDB ID: 3ERT), followed by drug-likeness screening based on Lipinski’s Rule of Five and prediction of the ADMET pharmacokinetic profile through the SwissADME and pKCSM web servers. The molecular docking results showed that Compound 15 had the strongest binding affinity, with a docking score (S) of -11.94 kcal/mol and a Root Mean Square Deviation (RMSD) value of 0.7 Å, better than the control ligand 4-hydroxytamoxifen (S = -11.1 kcal/mol; RMSD = 1.8 Å). Other potential compounds that showed high affinity were Compound 13 (S = -11.20 kcal/mol) and Compound 1 (S = -10.88 kcal/mol). The ligand-protein complex was stabilized by hydrogen bonds, hydrophobic interactions, and pi-sulfur interactions in the receptor’s active pocket. Physicochemical prediction showed that most compounds met Lipinski’s Rule of Five criteria for oral drug candidates and had good ADMET solubility, permeability, and elimination profiles without indications of hepatotoxicity. The conclusion of this study affirms that imidazopyrimidine derivatives, particularly Compounds 15, 13, and 1, have potential as candidate ER-α-targeted breast anticancer agents. These findings provide an initial contribution to the development of breast anticancer therapy candidates and need to be followed up through experimental in vitro and in vivo studies.
Efektivitas E-LKPD Hidrokarbon Berbasis Problem Based Learning terhadap Hasil Belajar Peserta Didik Kelas X SMK SMTI Padang Firnanda Aji Saputra; Syamsi Aini
MASALIQ Vol 6 No 4 (2026): JULI
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/masaliq.v6i4.10995

Abstract

Although the use of electronic Student Worksheets (e-LKPD) and the Problem Based Learning (PBL) model has been widely studied, research that specifically analyzes the effectiveness of PBL-based hydrocarbon e-LKPD that has been declared valid and practical on the learning outcomes of vocational high school students remains limited. This study aims to analyze the effectiveness of PBL-based hydrocarbon e-LKPD on the learning outcomes of Grade X students at SMK SMTI Padang. This study used a quantitative approach with a quasi-experimental nonequivalent control group design involving 70 students selected through purposive sampling. Data were collected using a multiple-choice test instrument administered through pretests and posttests, and then analyzed using descriptive statistics, prerequisite tests, N-Gain analysis, and Analysis of Covariance (ANCOVA). The results showed that the mean posttest score of the experimental class was 83.69, which was higher than that of the control class, which was 62.74. The experimental class obtained an N-Gain score of 0.76 in the high category, while the control class obtained an N-Gain score of 0.39 in the moderate category. The ANCOVA results showed that the use of PBL-based hydrocarbon e-LKPD had a significant effect on students’ learning outcomes after controlling for initial ability (F = 82.439; p < 0.001). These findings contribute to the development of technology-based chemistry learning and expand understanding of the effectiveness of digital learning media integrated with PBL in vocational education. The conclusion of this study affirms that PBL-based hydrocarbon e-LKPD is effective in improving students’ learning outcomes. The implications of this study include theoretical contributions to the development of digital chemistry learning literature and practical implications for teachers and schools in implementing interactive learning media that are relevant to vocational learning needs.
Analisis Kemampuan Mahasiswa PGSD dalam Merancang Pembelajaran Berdiferensiasi di Sekolah Dasar Golkardi Golkardi; Eti Kusuma; Dhini Mufti
MASALIQ Vol 6 No 4 (2026): JULI
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/masaliq.v6i4.11003

Abstract

The diversity of elementary school students’ characteristics requires prospective teachers to have the ability to design instruction that is responsive to students’ learning needs. This study aims to analyze the ability of Primary School Teacher Education (PGSD) students to design differentiated instruction in elementary schools. This study used a quantitative approach with a descriptive method. The research participants consisted of 80 PGSD students who had taken courses in instructional planning, learning strategies, or microteaching. Data were collected through questionnaires and assessment sheets for differentiated instructional designs. Data were analyzed using descriptive statistics in the form of frequencies, percentages, means, and standard deviations. The results showed that PGSD students’ ability to design differentiated instruction was in the high category, with an overall mean of 72.11. The highest ability was found in the aspect of formulating learning objectives, while the lowest ability was found in the aspect of designing learning assessments. These findings indicate that students already have a sound pedagogical foundation but still require strengthening in developing product differentiation and assessments that are appropriate to students’ characteristics. The conclusion of this study affirms the importance of strengthening differentiated instructional planning competence for prospective elementary school teachers. The implications of this study include strengthening the courses of instructional planning, learning evaluation, and microteaching so that they are more integrated with differentiated instructional practices relevant to students’ needs.