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Jurnal Pijar MIPA
Published by Universitas Mataram
ISSN : 19071744     EISSN : 24601500     DOI : -
Core Subject : Science, Education,
Biochemistry, Genetics & Molecular Biology Chemistry Mathematics Physics
Jurnal Pijar MIPA (e-ISSN: 2460-1500 & p-ISSN: 1907-1744) is an open-access scientific periodical journal published by the Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA publishes original articles on current issues and trends in mathematics-science-science education studies. In addition, this journal addresses issues concerning environmental education and environmental science. The journal scopes are: a. Physics and Physics Education b. Chemistry and Chemistry Education c. Biology and Biology Education d. Natural Science and Science Education e. Mathematics and Mathematics Education f. Environmental and Environmental Education
Arjuna Subject : Umum - Umum
Articles 1,179 Documents
 113   114   115   116   117 
The Belanger Tradition of the Sasak People: An Ethnoscientific Study of Cultural, Chemical, and Ecological Dimensions Al Idrus, Syarifah Wahidah; Rahmawati, Rahmawati; Nurhidayatullah, Nurhidayatullah
Jurnal Pijar Mipa Vol. 20 No. 8 (2025): Special Issue
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v20i8.6998

Abstract

The Belanger tradition is an indigenous Sasak hair-cleansing practice that integrates cultural values, ethnochemical knowledge, and environmental sustainability. This study investigates the Belanger tradition, a Sasak hair-cleansing ritual utilizing natural ingredients such as coconut milk, hibiscus leaves, and kaffir lime. Employing a qualitative ethnochemical approach, data were collected through in-depth interviews, participatory observation, and documentation at three sites in Lombok. The findings reveal that Belanger transcends mere physical hair treatment; it embodies a holistic practice of physical and spiritual purification, reinforced by its socio-cultural role in strengthening community bonds and intergenerational knowledge transmission. Scientific analysis demonstrates that the selected ingredients possess bioactive properties with clear ethnochemical rationales. Coconut milk, rich in lauric acid, provides conditioning and antimicrobial benefits. Kaffir lime offers essential oils and flavonoids with antifungal and antioxidant activities, while hibiscus leaves contribute natural saponins for gentle cleansing. The traditional practice of roasting coconut further enhances its adsorptive capacity through mild pyrolysis. Environmentally, the tradition exemplifies a sustainable model, as all materials are biodegradable and locally sourced, in contrast to the persistent chemical waste associated with synthetic shampoos. Thus, this research concludes that Belanger represents a significant convergence of indigenous wisdom and empirical science. It serves not only as a cultural heritage but also as a viable case study for sustainable cosmetic practices and context-based science education, highlighting the relevance of local knowledge in contemporary discourses on health, ecology, and cultural preservation.
Improvement of Resistant Starch Content in Millet (Panicum miliaceum L.) Flour by Fermentation and Heat Moisture Treatment Pratiwi, I Desak Putu Kartika; Nociantri, Komang Ayu
Jurnal Pijar Mipa Vol. 20 No. 8 (2025): Special Issue
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v20i8.7394

Abstract

Resistant starch is considered a valuable prebiotic source, and its content is associated not only with dietary fiber but also closely related to the amylose fraction of starch. Millet is a cereal grain rich in dietary fiber. Compared with staple cereals such as rice, wheat, and corn, millet contains higher levels of dietary fiber and antioxidants. The primary component of millet is starch, which accounts for approximately 70% of the grain, consisting of amylose and amylopectin. The research objective – to determine the best modification method to produce millet flour with the highest RS3 content. This study uses a completely randomized design with five treatment variations, repeated three times, applying different fermentation types followed by High Moisture Treatment (HMT). The analysis included the contents of starch, amylopectin, and resistant starch. The results show that significant differences in resistant starch levels were observed between treatments without HMT and those subjected to HMT. Fermentation followed by HMT effectively enhanced the resistant starch content of millet flour, highlighting the importance of combining biological and physical modifications. Among the treatments, fermentation with Lactobacillus rhamnosus SKG 34 followed by the HMT process was identified as the most effective approach, resulting in the highest resistant starch content of 3.85%. These findings demonstrate the potential of this combined modification strategy for improving the functional properties of millet flour.
The Effect of Different Doses of Compost and Urea Fertilizer on the Growth of Pak Choi (Brassica rapa L.) Merta, I Wayan; Raksun, Ahmad
Jurnal Pijar Mipa Vol. 20 No. 7 (2025)
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v20i7.7543

Abstract

Pak Choi is a widely cultivated plant species in Indonesia. To grow optimally, Pak Choi requires a growing medium containing sufficient nutrients. To ensure adequate nutrient levels in the growing medium, fertilization is necessary. Research on the effect of compost and urea fertilizer applications on Pak Choi growth was conducted from March to June 2025. This study aims to analyze the vegetative growth of Pak Choi after being given compost and urea fertilizer treatments. In this study, a completely randomized design with 2 factors was used. The compost application was 0 kg, 0.8 kg, 1.6 kg, and 2,4 kg for 8 kg of soil in a polybag. The urea fertilizer treatment was 0 grams, 0.5 grams, 1 gram, and 1.5 grams for each plant. Each treatment combination was performed with three replications. The results showed that the compost treatment had a significant effect on the fresh weight, number of leaves, plant height, and leaf length of Pok choy. The application of urea fertilizer can increase the fresh weight, number of leaves, plant height, and leaf length of Pak Choi. The interaction between compost and urea fertilizer had no significant effect on fresh weight, leaf number, plant height, or leaf length. The optimal dose of compost was 1.2 kg. The 1.5-gram urea fertilizer treatment resulted in better growth than the other doses.
Development of a Chemistry Magazine with Content Interpreting GC-MS Spectrum of Renggak Fruit Peel Extract as a Supplementary Resource for Organic Chemistry Lectures Rahmawati, Rahmawati; Al Idrus, Syarifa Wahidah; Masruri, Baiq Laili Nisfi Siami
Jurnal Pijar Mipa Vol. 20 No. 8 (2025): Special Issue
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v20i8.7759

Abstract

Mastering the interpretation of spectra, as Gas Chromatography-Mass Spectrometry (GC-MS) spectra, in organic chemistry lectures for the analysis of natural materials is an important skill that often poses a challenge for students. This is especially true for natural materials in the surrounding environment that may have future potential, such as renggak fruits. This study aims to determine the results of interpreting renggak fruit peel extracts for use as content in a chemistry magazine, the level of validity, and student responses to the chemistry magazine developed as an alternative supplementary reading material. Conducted within the Chemistry Education Study Program at Mataram University, this study utilized the Research and Development (R&D) methodology, following the 4D model framework. The interpretation of the GC-MS spectrum of renggak fruit peel was carried out by matching the spectrum data obtained with the library data. The validity of the magazine was assessed using Aiken's V formula, while the reliability of the assessment was calculated based on the Percentage of Agreement (R) between validators. Student responses to the magazine product were obtained through a practical test. The results of the GC-MS spectrum interpretation of the renggak fruit peel extract showed the presence of the compounds myristic acid, palmitic acid, stearic acid, oleic acid, elaidinsaeure, heptadecene- (8)-carbonic acid-(1), 2-monoolein, 2-monopalmitin, ambretollide, 6-(2,6,6-Trimethyl-1-Cyclohexenyl)-4-Methyl-(E)-4-Hexen-1-ol, and cis-9-Octadecenal. The chemistry magazine product obtained an average Aiken's V validity score of 0.83, which falls into the “Highly Valid” category, with an average validator reliability score of 91%. The results of the chemistry magazine trial among 2021 Chemistry Education students obtained a practicality score of 92%, categorized as “Very Practical” as supplementary reading material. In the future, further exploration is needed regarding the content and design of the magazine to be created.
The Effect of Family Support on the Level of Adherence to Medication Among Pulmonary Tuberculosis Patients at the Tenggarong District Health Center Apriani, Diana Kurnia; Al-Mubarak, Agustiqori; Pratama, M. Yudha
Jurnal Pijar Mipa Vol. 20 No. 8 (2025): Special Issue
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v20i8.8086

Abstract

Tuberculosis (TB) remains one of the leading causes of death worldwide, and the success of its treatment largely depends on patient adherence to medication. Since non-adherence is still common, this study aims to analyze the influence of family support on medication adherence among pulmonary TB patients at the Tenggarong District Health Center, Indonesia. The research employed a quantitative method with a cross-sectional design and a prospective approach, involving 60 patients with pulmonary TB selected through convenience sampling. The research instruments included a demographic questionnaire, a family support questionnaire, and the Morisky Medication Adherence Scale-8 (MMAS-8) to assess patient adherence levels. The results showed that most respondents received good family support (95%) and had a high level of adherence (86.67%). The chi-square test indicated a significant relationship between family support and medication adherence (p = 0.000), while multivariate analysis using Principal Component Analysis (PCA) also confirmed a positive correlation between the two variables.
The Utilization of Medicine Plants by the Community of the Traditional Village Dasan Beleq Gumantar Regency, North Lombok, Indonesia Hidayah, Nurul; Hadiprayitno, Gito; Karnan, Karnan; Irawan, Jono
Jurnal Pijar Mipa Vol. 20 No. 7 (2025)
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v20i7.8175

Abstract

The traditional village community of Dusun Dasan Beleq is the oldest Sasak tribe in Lombok and still maintains local wisdom in using plants as traditional medicine. This study aimed to identify the plant species, parts, and processing methods used by the local community for medicinal plants. This type of research is descriptive. The data were collected through primary research, including semi-structured interviews and non-participatory observations. The respondents were selected by purposive sampling, including traditional leaders and the local community. The stages of data analysis are data reduction (Data Reduction), data presentation (Data Display), and conclusion. The results showed that the people of the Dusun Dasan Beleq Traditional Village had knowledge of 25 species from 22 plant families. Leaves are one of the most commonly used plant parts besides flowers, fruits, seeds, and rhizomes. The processing of medicinal plants used by the people of the Dusun Dasan Beleq Traditional Village involves methods such as pounding, boiling, and squeezing.
Development of the Ethnochemistry Magazine Using Traditional Gold Mining Culture and Gold Crafts Loka, I Nyoman; Siahaan, Jeckson; Muntari, Muntari; Sofia, Baiq Fara Dwirani; Al Idrus, Syarifa Wahidah; Aeni, Baiq Royatul
Jurnal Pijar Mipa Vol. 20 No. 8 (2025): Special Issue
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v20i8.8848

Abstract

Research and development were conducted with the aim of describing the chemistry concepts contained in the traditional gold mining culture in Prabu village, Middle Lombok and gold crafts in Sekarbela, Mataram. This research is a qualitative descriptive study with a survey approach, conducted in collaboration with 4D Research and Development. The data in this study were collected using the triangulation method, which included interviews, observations, and literature studies. The data analysis technique employed the Miles and Huberman method, which involved data reduction, data presentation, and drawing conclusions. The results of the study indicate that in the traditional gold mining culture in Prabu Village, Middle Lombok, and the gold craft cultural activities in Sekarbela Mataram, there are chemical concepts, including elemental chemistry, reaction equations, oxidation-reduction reactions, the application of the solubility product of salts to separate chemical components from their mixtures, the concept of acids and bases, and the concept of colloids. Teaching materials in the form of ethnochemistry magazines from research and development have a feasibility category that is very feasible, based on the magazine's size, cover design, and content design, with an average V coefficient of 0.94. The feasibility of ethnochemistry magazines, based on the material component indicator, with sub-indicators of material suitability and stimulating curiosity, as well as the feasibility of presentation, with sub-indicators of presentation techniques and presentation support, and the linguistic component indicator, is classified as very feasible, with an average V coefficient of 0.93. In general, ethnochemistry magazines from research and development are classified as very feasible, with an average V coefficient of all aspects of 0.935.
Reproductive Aspects of Mangrove Crabs (Scylla sp.) Caught by Fishermen in the Bagek Kembar Essential Ecosystem Area, West Lombok Niarni, Baiq Gina Amalia; Karnan, Karnan; Kusuma, Anindita Suliya Hangesti Mandra; Mahrus, Mahrus
Jurnal Pijar Mipa Vol. 21 No. 1 (2026)
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v21i1.9557

Abstract

Mangrove crabs are a high-value fishery resource that is closely associated with mangrove ecosystems, but their uncontrolled use has the potential to threaten the sustainability of the population. This study aims to analyze the reproductive aspects of mangrove crabs (Scylla sp.) caught by fishermen in the Bagek Kembar Essential Ecosystem Area (KEE), West Lombok, as the basis for sustainable fisheries management. The research was conducted in March-May 2025, using a quantitative survey method and observation-based data collection. The sampling technique in this study is purposive sampling. The observed parameters included gender, carapace width, body weight, gonadal maturity level (TKG), and gonadal maturity index (IKG). Data were analyzed descriptively and inferentially to describe growth patterns and reproductive conditions. The results showed a dominance of females, with a male:female ratio of 0.83:1. The relationship between carapace width and body weight is negative allometric (b < 3), indicating that carapace growth is faster than body weight growth. The distribution of TKG is dominated by TKG I and III, while the average IKG ranges from 2.05–5.72% with a frequency of 80%. The novelty of this research lies in providing location-based mangrove crab reproductive data in essential ecosystem areas that remain limited. The results of the study confirm the importance of regulating catch size and protecting mature gonadal individuals, and recommend further research on seasonal reproductive dynamics to support ecosystem-based fisheries management.
Student Involvement Model in Laboratory Maintenance According to ISO 17025 Muhsin, Muhsin; Ilhamdi, Mohammad Liwa; Wirandanu, Lalu Septiadi
Jurnal Pijar Mipa Vol. 20 No. 7 (2025)
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v20i7.10053

Abstract

Student engagement in laboratory quality systems is essential for strengthening maintenance compliance and technical competence, particularly when aligned with international standards such as ISO 17025:2017. This study aims to (1) design a student engagement model that complies with the requirements of clauses 6.2.2 and 7.6 of ISO 17025:2017 and (2) analyze the impact of its implementation on improving equipment maintenance compliance and student technical competence. The research design employs an explanatory sequential mixed-methods approach, with a dominant quantitative component and qualitative support. The research subjects included 22 key informants (laboratory coordinators, laboratory heads, technicians, and students) who were selected with purposive sampling. Data were collected through structured questionnaires, in-depth interviews, FGDs, and participant observation. Quantitative data were analyzed using multiple linear regression using SPSS 25, while qualitative data were analyzed thematically. The results showed that the model designed based on four pillars: training, documented participation SOPs, internal audit simulations, and portfolio systems effectively transformed students from passive learners into competent contributors to the laboratory quality assurance system. The implementation of the model was proven to significantly improve maintenance compliance (mean = +1.81) and technical competence (mean = +1.59). Regression analysis confirmed that the model explained 80.2% of the variance in compliance (R² = 0.802) and 78.1% of the variance in competence (R² = 0.781), with documentation quality (β = 0.462; β = 0.423) as the strongest predictor. Qualitative findings revealed a shift in mindset from obligation to ownership as a key mechanism. This study concludes that the developed model not only aligns with ISO 17025 but also provides a strategic approach to building sustainable quality cultures in educational laboratories.
The Substitution of Wheat Flour with Moringa Leaf Flour in Making Brownies with High Iron Content Nango, Maria Saltiana Bebhe; Putra, Anak Agung Ngurah Dwi Ariesta Wijaya; Sintyadewi, Putu Rima; Rabani RS, I Gusti Agung Yogi; Widnyani, Ida Ayu Putu Ary
Jurnal Pijar Mipa Vol. 20 No. 8 (2025): Special Issue
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v20i8.10170

Abstract

Brownies are a popular bakery product, but their nutritional profile is generally low, especially in iron content. This condition contrasts with the high prevalence of anemia among adolescent girls in Indonesia. This study aims to investigate the effect of substituting wheat flour with moringa leaf flour (Moringa oleifera) as an alternative natural fortification to increase iron levels in brownies, while also determining the optimal formulation. The method used was an experiment with a Completely Randomized Design (CRD), and data were analyzed using Analysis of Variance (ANOVA) followed by Duncan's test. The results showed that the addition of moringa leaf flour had a significant effect on increasing iron levels, as well as affecting other chemical characteristics (water, ash, protein, fat, and carbohydrate content). The best formulation was the T5K5 treatment (75% substitution of moringa leaf flour), which produced the highest iron content of 1376.58 ppm, along with a measurable macro composition (water content: 12.26%, ash: 0.94%, protein: 7.39%, fat: 20.83%, carbohydrate: 57.16%). Fundamentally, these findings imply the success of natural food fortification using local raw materials. These results are relevant for the development of functional food products as an acceptable food-based nutritional intervention strategy in addressing anemia in adolescents, as well as providing an important contribution to health education and nutritional literacy.

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