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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) JURNAL REKAYASA TEKNOLOGI INFORMASI Hydrogen: Jurnal Kependidikan Kimia Lumbung Inovasi: Jurnal Pengabdian Kepada Masyarakat Empiricism Journal Prisma Sains: Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram Bakti Sekawan : Jurnal Pengabdian Masyarakat Journal of Authentic Research Sasambo: Jurnal Abdimas (Journal of Community Service) Edu Elektrika Journal
Gargazi Gargazi
Fakultas Teknik Sains Dan Terapan, UNDIKMA. Jl. Pemuda No.59A, Mataram, Indonesia 83125
Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Physics Public Health Social Sciences Other

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Review of Secondary Metabolites From Melandean Bark Extract (Bridellia Micrantha): Bioactive Potential and Applications in Health Bayani, Faizul; Muhali, Muhali; Yuliana, Devi; Hulyadi, Hulyadi; Gargazi, Gargazi
Hydrogen: Jurnal Kependidikan Kimia Vol. 12 No. 3 (2024): June-July 2024
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v12i3.11956

Abstract

Abstract The emergence of various diseases affecting the immune system, such as COVID-19 and Hand, Foot, and Mouth Disease, demands serious attention. Current climate changes occurring in almost all parts of the world can lead to the emergence of various viruses and bacteria that cause multiple diseases. Exploring medicinal plants that can enhance the immune system is crucial to be continued. This study aims to identify secondary metabolite compounds contained in Bridellia Micrantha plants using chemical reagents and gas chromatography-mass spectrometry (GC-MS) instruments. This research is an experimental laboratory study. The variable studied is the content of secondary metabolite compounds. Data were collected using chemical reagents and instruments. The obtained data are described in informative tables and graphs. Based on the identification results using instruments, positive results were found for organic compound groups such as flavonoids, alkaloids, and tannins. GC-MS test results showed that the organic compounds  contained in Bridellia Micrantha extract are 43.05% hexadecanoic acid, 21.46% oleic acid, 16% docos-13-enoic acid, 3.89% octadecanal, 1.85% propanediol, and 0.91% trans-phytol. Literature reviews indicate that the organic acids in Bridellia micrantha extract have clinical activities as antioxidants and anti-inflammatory agents, while organic compounds containing hydroxyl groups have clinical activities as anti-cancer agents. Based on these findings, Bridellia micrantha extract has the potential as a medicine that can enhance the body's immunity.  
Antioxidant Activity Analysis of Ethanol Extract from Melandean Leaves (Bridelia micrantha) Using the DPPH Assay Bayani, Faizul; Rahayu, Lale Budi Hutami; Rahayu, Supiani; Huaida, Nurul; Yuliana, Depi; Hulyadi, Hulyadi; Gargazi, Gargazi
Hydrogen: Jurnal Kependidikan Kimia Vol. 12 No. 6 (2024): December 2024
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v12i6.13855

Abstract

The increasing global prevalence of oxidative stress-related diseases such as cardiovascular disease, diabetes, and neurodegenerative disorders underscores the importance of developing effective antioxidant strategies. In this study, samples of ethanol extract from Bridelia micrantha (Melandean) leaves were used which were then evaluated using the DPPH (2,2-diphenyl-1-picrylhydrazyl) test, a method that is widely known for assessing free radical scavenging activity. The ethanol extract sample was obtained through maceration with a yield of 15.84%. Based on the DPPH test, it shows that the extract has dose-dependent inhibition of DPPH radicals, with a maximum inhibition of 66.13% at a concentration of 25 ppm. The IC50 value, calculated from regression analysis, confirmed the antioxidant potential of the extract, although it was less effective than that of vitamin C, which was used as a positive control. These findings suggest that Bridelia micrantha leaves, rich in phytochemicals such as flavonoids, tannins, and saponins, have the potential as a source of natural antioxidants for managing oxidative stress-related health conditions.
Correlation Profile of Cognition Levels and Student Ability to Solve Problems in Biodiesel Synthesis Hulyadi, Hulyadi; Bayani, Faizul; Muhali, Muhali; Khery, Yusran; Gargazi, Gargazi
Jurnal Penelitian Pendidikan IPA Vol 9 No 6 (2023): June
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i6.3130

Abstract

Covid-19 has had a huge impact in all sectors. The socio-economic sector experienced the heaviest impact. One of the sectors affected is the world of education. Education is now transforming from face-to-face learning to online learning. Online learning is very helpful for students during covid-19. In addition to having a positive value, online learning also contains a negative value. For example, students' interest in reading increases, but on the other hand, students' reading power is low. Low reading power has an impact on decreasing the cognitive level of students. The purpose of this research is to first identify the cognitive level profiles and students' abilities in solving problems in the synthesis of biodiesel from used cooking oil. Analyzing the correlation between cognitive level and students' ability to solve problems. This research is a correlational descriptive research. This research was conducted on fourth semester chemistry education students who were taking an instrument chemistry course and determining the structure of organic compounds. Cognitive level and problem-solving ability were measured using a rubric for assessing cognitive level and student problem-solving ability. The data obtained is then described in graphical form. The data was then tested for correlation using the SPSS product moment correlation test. In this study, it was found that the cognitive level of most students entered at C2 and C3 levels and the average problem solving ability was 53.84. The results of the correlation test show that the cognitive level is positively correlated with the ability of students to solve problems. This is evidenced by the comparison of the value of r count 0.724> r table 0.44. Based on the results of this study, it can be concluded that the cognitive level and problem solving abilities of students are still low. Cognitive level and problem solving ability are positively correlated
Preservice Science Teachers as Mediators of Indigenous Artisanal Knowledge: A Community-Based Ethnoscience Project in Central Lombok Bayani, Faizul; Hulyadi, Hulyadi; Pomeistia, Meilynda; Sudirman, Sudirman; Rahman, Rahman; Hidayah, Thauhidayatul; Hardianti, Dina; Safitri, Temi Ainul; Gargazi, Gargazi
Journal of Authentic Research Vol. 4 No. 2 (2025): December
Publisher : LITPAM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/f6svsq19

Abstract

This qualitative single-case ethnoscience study explored how preservice science teachers reconstructed indigenous knowledge from local artisanal practices into potential school science learning resources. Conducted in an Ethnoscience course in the Science Education Study Program at Universitas Qamarul Huda Badaruddin Bagu, Central Lombok, the project adopted an ethnoscience-oriented project-based practicum (EthnoPjBL) in which one intact class collaborated with artisans involved in knife forging, clay brick and roof-tile production, herbal medicine and jamu kunyit asam preparation, palm-sugar and sweet tuak processing, and plastic and bamboo weaving. Data from participant observation, field notes, interviews, structured analysis tables, student scientific report drafts, concept maps, reflective worksheets, and course documents were analysed through thematic coding, constant comparison, and concept map interpretation. The findings show that preservice teachers identified dense clusters of phenomena, for example heat transfer, phase change, mixtures, plant physiology, microbial processes, and structural mechanics, mapped these onto canonical concepts and junior and senior secondary curriculum topics, and produced curriculum-linked representations that support contextualised and integrated science learning while developing epistemological awareness, ethical sensitivity, and capacity to pedagogically mobilise indigenous knowledge.
Identification Of Vegetable Fat Formulations on Hardness, Cleaning and Conditioning of Solid Soap Hulyadi, Hulyadi; Muhali, Muhali; Prayogi, Saiful; Azmi, Irham; Firdaus, Laras; Suryati, Suryati; Mirawati, Baiq; Gargazi, Gargazi
Journal of Authentic Research Vol. 4 No. 2 (2025): December
Publisher : LITPAM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/ty850306

Abstract

This study aims to examine the effect of varying vegetable oil compositions (coconut, palm, and olive) on the physical and chemical qualities of solid soap, specifically in terms of hardness, cleansing ability, and moisture content. This study used a laboratory experiment with five soap formulas combining various vegetable oil compositions. The results showed that the formula with a combination of 60% coconut oil and 40% palm oil produced the soap with the highest hardness, while the formula with a combination of 60% coconut oil and 40% olive oil provided the best moisture content. The soap with a composition of 60% coconut oil and 40% palm oil also demonstrated better cleaning ability, thanks to the lauric acid content in coconut oil, which has antibacterial properties. This study recommends the use of a combination of coconut and palm oils to produce soap with the best quality in terms of hardness and cleansing ability, and coconut and olive oils for soap with greater skin moisturizing properties. It is hoped that this research will contribute to the development of the natural soap industry in Indonesia, reduce dependence on imported raw materials, and increase the competitiveness of natural soap products in the global market.
Analysis of the Role of Algorithms in the Analysis of Organic Molecular Structures: A Study of Formal Charges and Their Reactivity Muhali, Muhali; Hulyadi, Hulyadi; Gargazi, Gargazi; Azmi, Irham; Bayani, Faizul
Empiricism Journal Vol. 6 No. 4: December 2025
Publisher : Lembaga Penelitian dan Pemberdayaan Masyarakat (LITPAM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/q58j9193

Abstract

This study aims to identify students' competency in understanding the formal charge and reactivity of organic molecules through algorithm-based learning and mathematical formulations. A quasi-experimental pretest–posttest design was used with Chemistry Education students who had taken the topic of chemical bonding and Lewis structures. Essay and multiple-choice tests were used to measure the accuracy of Lewis structures, formal charge calculations, charge symbol interpretation, and reactivity predictions. The pretest results showed an average student score of 32.4, while the posttest score increased to 74.1, with an N-gain of 0.62 (moderate–high category). Students showed significant improvement in identifying reactivity centers (electrophilic/nucleophilic) and linking charge distribution to structural stability. The application of algorithms also strengthened their ability to visualize electronic structures, particularly in the context of sp3and sp3 hybridization. Computational chemistry simulations helped students develop stronger symbolic and predictive representations of chemical reactions. This study concludes that the integration of algorithms and symbolic approaches in learning effectively improves students' conceptual and computational literacy in organic chemistry.
Pengolahan Rempah dan Minuman Tradisional bagi PKK dan Kader Posyandu Desa Bengkaung Tahun 2025 Bayani, Faizul; Hulyadi, Hulyadi; Muhali, Muhali; Yuliana, Depi; Hamdani, Ade Sukma; Pomeistia, Meilynda; Gargazi, Gargazi
Lumbung Inovasi: Jurnal Pengabdian kepada Masyarakat Vol. 10 No. 4 (2025): December
Publisher : Lembaga Penelitian dan Pemberdayaan Masyarakat (LITPAM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/bw99gy69

Abstract

Pemanfaatan rempah dan tanaman obat keluarga (TOGA) untuk minuman tradisional berpotensi memperkuat ketahanan kesehatan keluarga dan membuka peluang usaha rumah tangga. Namun, pengolahan di tingkat rumah tangga/UMKM masih menghadapi kendala dalam hal higienitas, keamanan pangan, dan kewirausahaan. Desa Bengkaung di Kecamatan Batulayar, Kabupaten Lombok Barat, yang kaya rempah dan TOGA, memiliki PKK dan kader Posyandu yang berperan penting dalam kesehatan masyarakat, namun belum memiliki keterampilan dalam mengolah minuman tradisional yang sehat dan aman. Kegiatan pengabdian ini bertujuan meningkatkan kapasitas PKK dan kader Posyandu untuk memproduksi minuman tradisional berbasis rempah lokal yang higienis serta menumbuhkan orientasi usaha mikro. Pendekatan yang digunakan adalah pelatihan partisipatif dengan paradigma Participatory Action Research (PAR), mencakup analisis kebutuhan, penyusunan modul higiene-sanitasi dan prinsip HACCP sederhana, serta pelatihan kewirausahaan dasar. Evaluasi dilakukan melalui pre-post test, observasi praktik, dan penilaian organoleptik produk. Hasil menunjukkan peningkatan pengetahuan peserta terkait manfaat rempah dan keamanan pangan, serta keterampilan teknis pengolahan dan pengemasan, yang mendorong inisiatif untuk mengembangkan minuman tradisional sebagai usaha mikro berbasis komunitas. Processing of Traditional Spices and Beverages for the PKK and Posyandu Cadres of Bengkaung Village in 2025  Abstract The utilization of spices and family medicinal plants (TOGA) for traditional beverages has the potential to strengthen family health resilience and open opportunities for household businesses. However, processing at the household/SME level still faces challenges in hygiene, food safety, and entrepreneurship. Bengkaung Village in Batulayar District, West Lombok Regency, rich in spices and TOGA, has PKK and Posyandu cadres who play an important role in public health, but they lack skills in processing healthy and safe traditional beverages. This community service activity aims to enhance the capacity of PKK and Posyandu cadres to produce hygienic traditional beverages based on local spices and foster a microenterprise orientation. The approach used is participatory training with a Participatory Action Research (PAR) paradigm, including needs analysis, the development of hygiene-sanitation modules, and simple HACCP principles, as well as basic entrepreneurship training. Evaluation was carried out through pre-post tests, practice observations, and organoleptic product assessments. The results show an increase in participants' knowledge regarding the benefits of spices and food safety, as well as technical skills in processing and packaging, which encourage the initiative to develop traditional beverages as a community-based microenterprise.
Integrasi Pembelajaran IoT Berbasis Heutagogi dalam Proyek KKN/Magang Mahasiswa PTI Purmadi, Ary; Juliansyah, Akbar; Putrayadi, Wirawan; Jarir, Jarir; Gargazi, Gargazi
Jurnal Rekayasa Teknologi Informasi (JURTI) Vol 10, No 1 (2026): Jurnal Rekayasa Teknologi Informasi (JURTI)
Publisher : Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/jurti.v10i1.23814

Abstract

Penelitian ini membahas penerapan pendekatan heutagogi dalam program magang/Kuliah Kerja Nyata (KKN) mahasiswa Pendidikan Teknologi Informasi di komunitas petani organik. Permasalahan utama adalah keterbatasan kapasitas mahasiswa dalam mengembangkan teknologi tepat guna yang sesuai dengan kebutuhan masyarakat, serta kebutuhan akan model pembelajaran yang mendorong kemandirian, refleksi, dan adaptasi. Tujuan penelitian adalah merancang dan menganalisis efektivitas model pembelajaran adaptif berbasis heutagogi dalam mendukung pengembangan produk teknologi tepat guna. Metode penelitian menggunakan pendekatan deskriptif kualitatif dengan observasi partisipatif, wawancara terbuka, serta dokumentasi laporan dan produk mahasiswa. Subjek penelitian terdiri dari lima mahasiswa Program Studi Pendidikan Teknologi Informasi Universitas Pendidikan Mandalika yang mengikuti KKN di PT Lombok Organik Cahaya Nusantara selama tiga bulan. Hasil penelitian menunjukkan bahwa mahasiswa mampu menghasilkan lima produk inovatif, yaitu meja penelitian pertumbuhan tanaman dengan penyiraman otomatis, alat pengukur laju aliran air berbasis IoT, media pembelajaran penyiraman otomatis, modul digital penggunaan alat IoT, dan aplikasi web pemantau bibit cabai. Temuan ini menegaskan bahwa heutagogi mendorong mahasiswa untuk belajar secara mandiri, non-linear, dan reflektif, sekaligus menghubungkan teori akademik dengan kebutuhan praktis masyarakat. Kesimpulannya, pendekatan heutagogi efektif diterapkan dalam kegiatan KKN/magang untuk meningkatkan kapabilitas belajar mandiri, keterampilan teknis, serta kontribusi mahasiswa terhadap pemberdayaan komunitas pertanian organik.
Co-Authors AKbar Juiansyah Akbar Juliansyah Asy’ari, Muhammad Azmi, Irham Bayani, Faizul Bilad, Muhammad Roil Delila Idsa Amara Raymanda Devi Yuliana, Devi Dina Oktaviana Edi Haryanto Firdaus, Laras Hamdani, Ade Sukma Hardianti, Dina Hendrawani, Hendrawani Hidayah, Thauhidayatul Huaida, Nurul Hulyadi, Hulyadi Jarir, Jarir Jupriadi, Lalu Khaeruman M. Muhali Mashur Mashur Mirawati, Baiq Muhammad Roil Bilad Ni Nyoman Sri Putu Verawati Pomeistia, Meilynda Prayogi, Saiful Purmadi, Ary Putrayadi, Wirawa Rahayu, Lale Budi Hutami Rahayu, Supiani Rahman Rahman Safitri, Temi Ainul Subagio Subagio Sudirman Sudirman Suryati Suryati Taufik Samsuri Wirawan Putrayadi Wirawan Putrayadi, Wirawan Yuliana, Depi Yusran Khery, Yusran Yusril Anwar