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All Journal International Journal of Evaluation and Research in Education (IJERE) JPMS (Jurnal Pendidikan Matematika dan Sains) 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) Biosfer: Jurnal Pendidikan Biologi Journal on Education UPEJ Unnes Physics Education Journal Journal of Innovative Science Education Unnes Journal of Mathematics Education Research Journal of Primary Education Physics Communication 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 Unnes Science Education Journal Journal of Innovative Science Education Jurnal Pendidikan MIPA UPEJ : Unnes Physics Education Journal
Sunyoto Eko Nugroho, Sunyoto Eko
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Education Materials Science & Nanotechnology Mathematics Physics

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Journal : Jurnal Penelitian Pendidikan IPA (JPPIPA)

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Lilis Lismaya Lismaya, Lilis; Marwoto, Putut; Nugroho, Sunyoto Eko
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 Savitri, Erna Noor; Marwoto, Putut; Nugroho, Sunyoto Eko
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 Sugandi, Muhamad Kurnia; Marwoto, Putut; Nugroho, Sunyoto Eko
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
Antifungal Activity of Ethanol Extract of Stem Bark And Fruit Flesh of Baccaurea Lanceolata Against Fungi Causing Skin Infections Sasmita, Media; Marwoto, Putut; Nugroho, Sunyoto Eko; Sumarni, Woro
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.
Co-Authors Adi Nur Cahyono Aeniah, Aeniah Agung Tri Prasetya Agung Tri Prasetya Agung Tri Wibowo Agus Yulianto Amin Yusuf Anggraini, Tina Ani Rusilowati Anugrahaini, Ulya Santa Ardiansyah Pratama, Ardiansyah Arif Widiyatmoko, Arif Aryono Adhi, Aryono Aslamiyah, Lailatul Astuti, Heny Yuliana Awan, Meiseti Azifa, Itsna Nur Bambang Subali Budi Astuti Budi Naini Mindyarto, Budi Naini Candra Dewi Desianna, Ika 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 Fauzi Ahmad Muda Fina Fakhriyah Hadi Susanto Hartono Hartono Hartono Hartono Hartono Hartono Huda, Muhammad Jamalul Ian Yulianti, Ian IKMAH, ISTI Imam, Fathul Inna Latifa Rahmawati, Inna Latifa Isa Akhlis Iwan junaedi Joko Sutarto Kholifahrini, Riska Khotimah, Amalia Khusnul Khumaedi - Kurniawan, Aziz Kusumastuti, Rahmi Puji Lidia, Riska Lilis Lismaya Lisdiana Lisdiana Lurinda, Nadia Wahyu M. Hidayatur Rohman M. Hidayatur Rohman Masturi Masturi Mayasari, Oktaviana Arista Minhat, Minhat Muhammad Miftakhul Falah Muhammad Miftakhul Falah Mulyati, Restina Muji Munazah, Yuli Musyarrof, Ahmad Fatih Muttaqin, Rudhotul Niken Wulandari Noor, Yusmaniar Afifah Nourmayanti, Andrina Eka Nurhayati, Khofifah Ovan, Ovan Prasetyo, Agung Tri Pratiwi, Anisha Yuniar Prayitno, Wasi Sakti Wiwit Puji Hartono Putra, Ngurah Made Darma Putut Marwoto Riva Ismawati* Saiful Ridlo Salma, Vidya Matarani Samastha, Aditya Sarwi - Sasmita, Media Setiasiwi, Nafisah Irfani Setiawan, Agus Setiawan, Puji Agus SETIYAWATI, NINIK Setyoningrum, Andi Setyono, Anton Sigit Saptono Slamet Maulana Slamet Maulana Sri Mulyani Endang Susilowati, Sri Mulyani Endang Sudarmin Sudarmin Sudarmin Sudarmin Sudirman Sudirman Sugandi, Muhamad Kurnia Sugianto Sugianto Sugiyanto - Suharto Linuwih Sukestiyarno Sukestiyarno Sukirman Sukirman Sulhadi - Sulistiarmi, Wike Sumarli, Sumarli Supriyadi Supriyadi Supriyadi Supriyadi Sutikno Sutikno Suyanto Suyanto Titik Hidayati, Titik Totok Sumaryanto Florentinus, Totok Sumaryanto Uzaedah, Elly Wahyudi, Ikwan Wawan Wawan wildayanto, arif Wilsa, Asrizal Wiyanto - Wiyanto Wiyanto Wiyanto Wiyanto Woro Sumarni Yasiroh, Laeli Yuni Arfiani Yusmaniar Afifah Noor Zaenuri Mastur