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All Journal International Journal of Evaluation and Research in Education (IJERE) JPMS (Jurnal Pendidikan Matematika dan Sains) Jurnal Ilmu Lingkungan Lembaran Ilmu Kependidikan Scientific Journal of Informatics Edufisika: Jurnal Pendidikan Fisika JURNAL PROFESI KEGURUAN Educational Management Unnes Science Education Journal JPPPF (Jurnal Penelitian dan Pengembangan Pendidikan Fisika) JIPF (Jurnal Ilmu Pendidikan Fisika) Jurnal Penelitian Pendidikan IPA (JPPIPA) Syntax Literate: Jurnal Ilmiah Indonesia Biosfer: Jurnal Pendidikan Biologi Journal on Education COMPTON: Jurnal Ilmiah Pendidikan Fisika UPEJ Unnes Physics Education Journal Journal of Innovative Science Education Unnes Journal of Mathematics Education Research Journal of Primary Education Physics Communication Jurnal Penelitian Sains dan Pendidikan (JPSP) Indonesian Journal of Educational Development (IJED) Prosiding Seminar Nasional Pascasarjana Proceeding of International Conference on Science, Education, and Technology Jurnal Pendidikan Sains Indonesia (Indonesian Journal of Science Education) Proceeding Seminar Nasional IPA Journal of Environment and Sustainability Education Unnes Science Education Journal Journal of Innovative Science Education Jurnal Pendidikan MIPA International Journal of Active Learning UPEJ : Unnes Physics Education Journal Physics Communication
Sunyoto Eko Nugroho, Sunyoto Eko
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Education Environmental Science Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Physics Social Sciences Other

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Antifungal Activity of Ethanol Extract of Stem Bark And Fruit Flesh of Baccaurea Lanceolata Against Fungi Causing Skin Infections Media Sasmita; Putut Marwoto; Sunyoto Eko Nugroho; Woro Sumarni
Jurnal Penelitian Pendidikan IPA Vol 11 No 5 (2025): May
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i5.10075

Abstract

Indonesia has a diversity of medicinal plants that are used by the community to treat various diseases. Indonesian people often experience skin problems caused by fungi. The high number of cases of fungal diseases is due to the high air humidity in the tropics, thus supporting the growth of fungi that cause skin infections. This study examines the phytochemical content and antifungal activity of Baccaurea lanceolata (lempaung) plants. The parts of lempaung used as samples are the stem bark and fruit flesh. Samples were taken in Bioa Sengok Village, Rimbo Pengadang District, Lebong Regency. Antifungal testing was conducted at the Chemistry Education Laboratory and Microbiology Laboratory of Bengkulu University (UNIB) from January to June 2022. Antifungal activity testing uses the disc diffusion method by immersing the disc into the ethanol extract of lempaung. The test fungi used were C. albicans, M. furfur, and T. mentagrophytes. The results of phytochemical tests showed that the stem bark and fruit flesh samples of lempaung contained alkaloids, flavonoids, tannins, saponins, steroids, and terpenoids. The antifungal activity test results showed that the samples had inhibition against C. albicans, M. furfur, and T. mentagrophytes.
Densitas sebagai Indikator Degradasi Minyak Goreng: Studi Eksperimental Berbasis Hukum Archimedes Arfiani, Yuni; Marwoto, Putut; Nugroho, Sunyoto Eko; Yuenyong, Chokchai
Jurnal Penelitian Sains dan Pendidikan (JPSP) Vol 6 No 1 (2026)
Publisher : UIN Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23971/abyq5f45

Abstract

Penelitian ini bertujuan untuk mengkaji densitas sebagai indikator degradasi minyak goreng akibat pemanasan berulang melalui pendekatan eksperimen berbasis Hukum Archimedes. Metode yang digunakan adalah eksperimen dengan pengukuran langsung terhadap tiga jenis minyak, yaitu minyak sawit, minyak kelapa, dan minyak jagung. Variabel independen berupa jenis minyak dan jumlah pemanasan (delapan siklus), sedangkan variabel dependen adalah densitas minyak. Pengukuran densitas dilakukan dengan membandingkan berat benda di udara dan di dalam minyak, dengan tiga kali pengulangan pada setiap perlakuan untuk meningkatkan reliabilitas data. Hasil penelitian menunjukkan bahwa densitas ketiga jenis minyak meningkat secara bertahap seiring bertambahnya jumlah pemanasan. Peningkatan densitas tertinggi terjadi pada minyak sawit, diikuti minyak kelapa, dan terendah pada minyak jagung. Temuan ini mengindikasikan bahwa pemanasan berulang menyebabkan degradasi kualitas minyak, yang tercermin dari peningkatan densitas. Dalam konteks parameter densitas, minyak jagung menunjukkan stabilitas yang relatif lebih baik terhadap pemanasan berulang dibandingkan minyak kelapa dan minyak sawit. Penelitian ini menegaskan bahwa densitas dapat digunakan sebagai indikator fisik yang sederhana dan aplikatif untuk menganalisis degradasi minyak goreng, meskipun interpretasinya masih terbatas pada aspek fisik dan memerlukan dukungan parameter kimia untuk evaluasi kualitas yang lebih komprehensif.
Lilis Lismaya Lilis Lismaya; Putut Marwoto; Sunyoto Eko Nugroho
Jurnal Penelitian Pendidikan IPA Vol 10 No 6 (2024): June
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i6.4255

Abstract

The aim of this research is to reduce household organic waste through the use of organic waste as a natural detector of formaldehyde content in food snacks. The organic waste used in this study was red garlic skins, dragon fruit skins and purple sweet potato skins. This research is an experimental research. The stages of the research started with the extraction of anthocyanins from the three organic wastes, direct detection of formalin and detection of food ingredients. The formalin concentrations tested were 0.5%, 1%, 2%, 5% and 25%. Detection ability can be seen from the color change between control and formalin treatment. Garlic skin produces a red extract, dragon fruit skin produces an orange extract, and purple sweet potato skin produces a deep red extract. Test results on 20 samples of food snacks around the campus using the three organic waste extracts proved that all samples contained formaldehyde in varying concentrations. The highest 50% formalin content was found in yellow noodles and meatballs. The conclusion is that purple beetle skin, dragonfruit skin, and red garlic skin can be used as natural detectors for formalin in campus snacks.
The Effectiveness of a Combination of Lime (Citrus aurantifolia.), Lerak (Sapindus rarak) and Jasmine Flower (Jasminum nudiflorum) Extracts as and Environmentally Friendly Corrosion Inhibitor Erna Noor Savitri; Putut Marwoto; Sunyoto Eko Nugroho
Jurnal Penelitian Pendidikan IPA Vol 10 No 3 (2024): March
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i3.6364

Abstract

Corrosion can also be defined as the forced destruction of metal by the surrounding medium which is usually a liquid (corrosive agent). Corrosion prevention processes can be carried out, including by coating the metal surface, cathodic protection, adding corrosion inhibitors and so on. Several types of inhibitors that have been widely used in industrial applications are synthetic chemical inhibitors. However, the compounds of inhibitors are environmentally unfriendly, toxic and expensive. To overcome this problem, it is necessary to develop an environmentally friendly alternative corrosion inhibitor or better known as a green inhibitor. This research aims to test the effectiveness of using a combination of lime (Citrus aurantifolia.), Lerak (Sapindus rarak) and jasmine flower (Jasminum nudiflorum) extracts as an environmentally friendly corrosion inhibitor. The results obtained were inhibitors in the form of a combination which were added to the corrosive medium HCl which could reduce the rate of aluminum corrosion. This research also shows that time and concentration influence the corrosion rate. A higher concentration (200 ppm) has a greater inhibitory power than a concentration of 100 ppm. The best inhibitory power is found in 200 ppm inhibitor with a soaking time of 20 minutes
Feasibility Test of Osteichthyes Wet Preparations through the Utilization of Chitosan on Storage Quality as Practical Media for Vertebrate Zoology Muhamad Kurnia Sugandi; Putut Marwoto; Sunyoto Eko Nugroho
Jurnal Penelitian Pendidikan IPA Vol 10 No 5 (2024): May
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i5.6462

Abstract

This study aims to evaluate the use of chitosan as a substitute for formalin in making wet preparations of true bony fish (Osteichthyes) and to assess the feasibility of storing them as practicum media in the Vertebrate Zoology course. Osteichthyes body size varies from 1 cm to 6 meters. The main characteristic of Osteichthyes is the presence of a skeleton consisting of native bone and a hard calcium phosphate matrix. The skin is protected by various types of scales, including ganoid, cycloid, or stenoid scales. The research method used is Experimental Research Method with descriptive approach, which includes hedonic test and shelf life test (organoleptic) through panelist participation. Tilapia (Oreochromis niloticus) was used as the specimen in this experiment with variations in chitosan concentration of 0.50, 1.50, 2.50, and 3.50%. The study included evaluation of Osteichthyes wet preparations by considering aroma and odor, texture, color, as well as monitoring storage stability for one week. The results showed that the wet preparation using chitosan concentration of 3.5% gave satisfactory results for the observation of Osteichthyes structure. In addition, the storage evaluation showed that the quality of the preparations could be well maintained over a certain period. This indicates that chitosan can be an effective alternative in making Osteichthyes wet preparations for Zoology practicum
The Electrical Characteristics of Fruit Peel Waste as a Biobattery in Terms of Fermentation Time and Coconut (Cocos nucifera L.) Pulp Concentration Siti Fatimah; Putut Marwoto; Sunyoto Eko Nugroho
Jurnal Penelitian Pendidikan IPA Vol 9 No SpecialIssue (2023): UNRAM journals and research based on science education, science applic
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9iSpecialIssue.6477

Abstract

Bioenergy is an alternative energy that utilizes various types of organic waste that can generate electricity. The purpose of this study was to determine the effect of fermentation time and coconut pulp concentration on the electrical characteristics of durian fruit skin, banana fruit skin, and cassava skin waste as an alternative energy source. The electrical characteristics observed were the voltage generated by fruit peel waste based on fermentation time and coconut pulp concentration. This research is a laboratory-based experimental research. The results of the study showed that: 1) the length of fermentation time affects the voltage generated by durian skin, banana skin, and cassava skin; 2) the fermentation time to produce the best voltage is the fourth day (96 hours); 3) the longer the fermentation time, the lower the voltage generated; 4) coconut pulp concentration affects the voltage generated by durian skin, banana skin, and cassava skin; 5) the ratio of 25% coconut pulp concentration and 75% raw material concentration becomes the ratio that produces the best voltage; 6) durian fruit peel waste has the highest voltage compared to banana fruit peel and cassava peel waste, both in terms of fermentation time or coconut pulp concentration. 7) cassava peel waste has a higher potential difference resistance than other skin waste
Local Potential Eco-Friendly Corrosion Bio-inhibitors for Iron Material in Karang Jahe Marine Puji Winarti; Putut Marwoto; Sunyoto Eko Nugroho
Jurnal Ilmu Lingkungan Vol 24, No 1 (2026): Januari 2026
Publisher : School of Postgraduate Studies, Diponegoro Univer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jil.24.1.52-61

Abstract

The seawater of Karang Jahe, Rembang Regency, provides a highly saline, chloride-rich environment that accelerates the corrosion of iron materials widely used in local fishing activities. Although synthetic corrosion inhibitors are effective, their long-term application raises ecological concerns due to toxicity. Plant-based extracts offer a biodegradable and environmentally safer alternative. However, studies investigating locally sourced coastal plants under natural seawater conditions remain limited. This study is novel in that it evaluates locally sourced teak leaf (Tectona grandis L.f.) and tengar bark (Ceriops tagal) extracts from the Karang Jahe coastal area as eco-friendly corrosion inhibitors in natural seawater media. Immersion experiments showed a consistent decrease in corrosion rates with increasing inhibitor concentrations. After 20 days of immersion at 20 ppm, inhibition efficiencies of 90.75% for teak leaf extract and 93.49% for tengar bark extract were achieved, demonstrating strong and sustained corrosion protection under realistic marine conditions. Peak efficiencies were observed after 10 days, suggesting effective early stage adsorption of the inhibitor molecules on the iron surface. Overall, tengar bark extract demonstrated stronger corrosion protection. This finding highlights its potential as a locally sourced and environmentally friendly inhibitor for marine applications.
Pengaruh Bahan Ajar Website terhadap Penguasaan Konsep Kinematika Gerak Lurus Siswa di SMA N 1 Tuntang Yoga Indrajatmoko; Sunyoto Eko Nugroho; Khumaedi Khumaedi
Syntax Literate Jurnal Ilmiah Indonesia
Publisher : Syntax Corporation

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36418/syntax-literate.v11i5.64326

Abstract

Penelitian ini bertujuan untuk mengkaji pengaruh bahan ajar berbasis website terhadap pemahaman konseptual siswa tentang kinematika gerak lurus. Penelitian ini menggunakan pendekatan kuantitatif menggunakan desain eksperimental pretest-posttest satu kelompok. Sampel terdiri dari 35 siswa kelas X.1 SMA N 1 Tuntang yang diseleksi melalui random sampling. Data dikumpulkan menggunakan tes pilihan ganda tiga tingkat untuk mengukur pemahaman konseptual siswa. Hasil penelitian menunjukkan bahwa rata-rata nilai pretest adalah 58,54, yang meningkat menjadi 81,00 pada posttest. Persentase kelengkapan pembelajaran meningkat dari 22,86% menjadi 82,86%. Analisis N-Gain menghasilkan skor rata-rata 0,51, dikategorikan sebagai peningkatan sedang. Temuan ini menunjukkan bahwa bahan ajar berbasis situs web efektif dalam meningkatkan pemahaman konseptual siswa tentang kinematika gerak lurus. Oleh karena itu, integrasi media digital interaktif direkomendasikan untuk mendukung pembelajaran fisika di era digital.
Prototype of TDS, EC, Temperature Monitoring System with NodeMCU ESP8266 in Water Quality Prediction Against Variations in Catfish Density BUDIKDAMBER Riswanto Riswanto; Putut Marwoto; Sunyoto Eko Nugroho
COMPTON: Jurnal Ilmiah Pendidikan Fisika Vol 12 No 2 (2026): Compton: Jurnal Ilmiah Pendidikan Fisika
Publisher : Prodi Pendidikan Fisika Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/cjipf.v12i2.21377

Abstract

This study aims to develop and validate an Arduino-based system for monitoring water quality using NodeMCU ESP8266 to measure Total Dissolved Solids (TDS), Electrical Conductivity (EC), and water temperature in fish farming in buckets (Budikdamber). Budikdamber monitoring has never been done in real-time with TDS–EC–temperature at the same time, as well as analyzing the influence of fish density variations on water quality dynamics. ADDIE's development model is used through the stages of analysis, design, development, implementation, and evaluation. The prototype was validated and calibrated with standard instruments, and its accuracy was tested using Pearson, MAE, RMSE, and MAPE correlation. The results showed a high measurement agreement between the prototype and the standard tool, with Pearson correlation values of 0.907 (TDS), 0.973 (EC), and 0.936 (temperature), respectively, signifying the high validity and precision of the measurements. Regression equations result in an effective calibration model to correct measurement bias. water- quality dynamics & density effect to Observations of various fish densities indicate that an increase in the number of fish increases TDS, EC, and pH fluctuations and also affects the thermal characteristics of the water. Regression analysis showed that fish density was a strong predictor of increased TDS (R² = 0.9098) and EC (R² = 0.8988). The study concluded that the prototype is feasible to be used for real-time monitoring and that the ideal density of Budikdamber ranges from 55 to 70 heads per 80-liter bucket to maintain water quality stability. Water management: the safest and optimal time to change pool water is in the afternoon, around 5:30–7:00 PM, with a waiting period of 4-5 days, offering a scalable physics-based monitoring framework for micro-aquaponics systems
Integrating Claim, Evidence, Reasoning into a Four-Tier Diagnostic Test to Assess Students’ Conceptual Understanding of Work and Energy Muhammad Fatikhul Alam Bima Sakti; Sunyoto Eko Nugroho; Budi Naini Mindyarto
Physics Communication Vol. 10 No. 1 (2026): February 2026
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/pc.v10i1.18527

Abstract

This study reports the development and validation of a Four-Tier Diagnostic Test integrated with the Claim, Evidence, and Reasoning (CER) framework to examine senior high school students’ conceptual understanding of work and energy. Although four-tier diagnostics and CER have been widely implemented independently, limited research has combined both approaches within a unified diagnostic assessment framework. The integration is intended to capture students’ answer accuracy, confidence level, and the structure of their scientific reasoning simultaneously. Using a Research and Development design, five CER-based four-tier items were developed and administered to 100 twelfthgrade students. Content and construct validity were established through expert review, and reliability was examined using Cronbach’s Alpha. Misconceptions were analysed using the Confidence Discrimination Quotient (CDQ) and fourtier interpretation criteria. The findings indicate that misconception rates ranged from 23% to 25%, while CDQ values varied between −0.006 and 0.024, suggesting the presence of moderate conceptual uncertainty. Most items demonstrated high difficulty levels and moderate discrimination indices, indicating that work–energy concepts remain cognitively demanding. The integration of CER into the four-tier structure provided richer diagnostic information by linking correctness, reasoning quality, and confidence level. These results highlight the potential of CER-integrated diagnostic assessment in identifying nuanced misconceptions in physics learning.
Co-Authors Aden Arif Gaffar Adi Nur Cahyono Aditya Marianti Aeniah, Aeniah Agung Tri Prasetya Agung Tri Prasetya Agung Tri Wibowo Agus Yulianto Ahmad Fauzi Amin Yusuf Anggraini, Tina Ani Rusilowati Anugrahaini, Ulya Santa Ardiansyah Pratama, Ardiansyah Arif Widiyatmoko, Arif Aryono Adhi, Aryono Asa Dyah Ayu Nuralita Aslamiyah, Lailatul Astuti, Heny Yuliana Awan, Meiseti Azifa, Itsna Nur Bambang Subali Budi Astuti Budi Naini Mindyarto, Budi Naini Candra Dewi Desianna, Ika Dewi Raokhil Iklima Fariyya Dewi Sucifitriyani Doni Setiawan Dwi Yulianti Eko Juliyanto Eko Juliyanto Ellianawati, Ellianawati Endang Susilaningsih Endang Susilaningsih Endang Susilaningsih Erna Noor Savitri, Erna Noor F. Shoufika Hilyana Fahrurrohman, Atriyanto Faisal, Syarif Fajrianti Fajrianti Fajrianti, Fajrianti Fauzi Ahmad Muda Fina Fakhriyah Hadi Susanto Hartono Hartono Hartono Hartono Hartono Hartono Hartono Ian Yulianti, Ian IKMAH, ISTI Imam, Fathul Inna Latifa Rahmawati, Inna Latifa Isa Akhlis Iwan Junaedi Joko Sutarto Kholifahrini, Riska Khotimah, Amalia Khusnul Khumaedi - Khumaedi Khumaedi Kurniawan, Aziz Kusumastuti, Rahmi Puji Lidia, Riska Lilis Lismaya Lisdiana Lisdiana Lurinda, Nadia Wahyu M. Hidayatur Rohman M. Hidayatur Rohman Masturi Masturi Masturi Masturi Mayasari, Oktaviana Arista Media Sasmita Minhat, Minhat Moh Sidiq Muhamad Kurnia Sugandi Muhammad Fatikhul Alam Bima Sakti Muhammad Jamalul Huda Muhammad Miftakhul Falah Muhammad Miftakhul Falah Mulyati, Restina Muji Munazah, Yuli Musyarrof, Ahmad Fatih Muttaqin, Rudhotul Niken Wulandari Noor, Yusmaniar Afifah Nourmayanti, Andrina Eka Nurhasan Ropi'i Nurhayati, Khofifah Ovan Ovan Prasetyo, Agung Tri Pratiwi, Anisha Yuniar Prayitno, Wasi Sakti Wiwit Puji Hartono Puji Winarti Putra, Ngurah Made Darma Putut Marwoto Putut Marwoto Ratih Windyaningsiwi riswanto riswanto Riva Ismawati* Saiful Ridlo Salma, Vidya Matarani Samastha, Aditya Sarwi - Setiasiwi, Nafisah Irfani Setiawan, Agus Setiawan, Puji Agus SETIYAWATI, NINIK Setyoningrum, Andi Setyono, Anton Sigit Saptono Siti Fatimah Slamet Maulana Slamet Maulana Sri Mulyani Endang Susilowati, Sri Mulyani Endang Sudarmin Sudarmin Sudarmin Sudarmin Sudarmin Sudarmin Sudirman Sudirman Sugianto Sugianto Sugiyanto - Suharto Linuwih Sukestiyarno Sukestiyarno Sukirman Sukirman Sulhadi Sulhadi - Sulistiarmi, Wike Sumarli, Sumarli Supriyadi Supriyadi Supriyadi Supriyadi Sutikno Sutikno Suyanto Suyanto Titik Hidayati, Titik Totok Sumaryanto Florentinus, Totok Sumaryanto Ully Ismayati Uzaedah, Elly Wahyudi, Ikwan Wawan Wawan wildayanto, arif Wilsa, Asrizal Wiyanto - Wiyanto Wiyanto Wiyanto Wiyanto Woro Sumarni Yasiroh, Laeli Yoga Indrajatmoko Yuenyong, Chokchai Yuni Arfiani Yuni Arfiani Yusmaniar Afifah Noor Zaenuri Mastur