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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 JURNAL PROFESI KEGURUAN Educational Management Unnes Science Education Journal 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)
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)

 1 
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
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
Co-Authors Adi Nur Cahyono Aeniah, Aeniah Agung Tri Prasetya Agung Tri Prasetyo 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 Asrizal Wilsa Astuti, Heny Yuliana Awan, Meiseti Bambang Subali Budi Astuti Budi Naini Mindyarto, Budi Naini Candra Dewi Desianna, Ika Dewi Sucifitriyani Doni Setiawan Eko Juliyanto Eko Juliyanto Ellianawati, Ellianawati Endang Susilaningsih Endang Susilaningsih Endang Susilaningsih Erna Noor Savitri, Erna Noor Fahrurrohman, Atriyanto Fajrianti, Fajrianti Fina Fakhriyah 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 Kusumastuti, Rahmi Puji Lidia, Riska Lisdiana Lisdiana M. Hidayatur Rohman M. Hidayatur Rohman Masturi Masturi Mayasari, Oktaviana Arista Minhat, Minhat Muhamad Kurnia Sugandi Muhammad Miftakhul Falah Muhammad Miftakhul Falah Mulyati, Restina Muji Munazah, Yuli Musyarrof, Ahmad Fatih Muttaqin, Rudhotul Niken Wulandari Noor, Yusmaniar Afifah Nourmayanti, Andrina Eka Ovan, Ovan Pratiwi, Anisha Yuniar Prayitno, Wasi Sakti Wiwit Puji Hartono Putra, Ngurah Made Darma Putut Marwoto Riva Ismawati* Saiful Ridlo Salma, Vidya Matarani Sarwi - 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 Sugianto Sugianto Sugiyanto - Suharto Linuwih Sukestiyarno Sukestiyarno Sulhadi - Sulistiarmi, Wike Sumarli, Sumarli Supriyadi Supriyadi Supriyadi Supriyadi Sutikno Sutikno Suyanto Suyanto Titik Hidayati, Titik Totok Sumaryanto Florentinus, Totok Sumaryanto Uzaedah, Elly Wawan Wawan wildayanto, arif Wiyanto - Wiyanto Wiyanto Wiyanto Wiyanto Woro Sumarni Yasiroh, Laeli Yusmaniar Afifah Noor Zaenuri Mastur