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All Journal Eksergi: Chemical Engineering Journal Jurnal Zarah The Indonesian Journal of Public Administration (IJPA) SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Agroindustrial Technology Journal CHEESA: Chemical Engineering Research Articles Dalton : Jurnal Pendidikan Kimia dan Ilmu Kimia WIDYA LAKSANA Bubungan Tinggi: Jurnal Pengabdian Masyarakat Hydrogen: Jurnal Kependidikan Kimia CHEDS: Journal of Chemistry, Education, and Science Abdimas Awang Long: Jurnal Pengabdian dan Pemberdayaan Masyarakat Jurnal Pijar MIPA International Journal of Multidisciplinary Sciences and Arts UNESA Journal of Chemical Education SOROT: Jurnal Pengabdian Kepada Masyarakat Jurnal Abdimas Indonesia Buletin Pemberdayaan dan Pengembangan Masyarakat
Trisnawati, Ade
UNIVERSITAS PGRI MADIUN
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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The Determination of Tannin Content and Larvicidal Activity Test Of Ripe Sapodilla Fruit Peel (Manilkara zapota) Trisnawati, Ade; Sri Wahyuningsih; Febriyandhi Yahya
International Journal of Multidisciplinary Sciences and Arts Vol. 2 No. 1 (2023): International Journal of Multidisciplinary Sciences and Arts, Article January 2
Publisher : Information Technology and Science (ITScience)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/ijmdsa.v1i2.2062

Abstract

This study aimed to determine the results of total tannin content determination of sapodilla peel extract (Manilkara zapota) and the effectiveness of sapodilla peel extract (Manilkara zapota) as a Aedes aegypti mosquito larvicide. The method used was a quantitative descriptive with a purposive sampling method. The sample was ripe sapodilla (Manilkara zapota) peel. The determination of tannin content in sample extracts was analyzed using UV-Vis spectrophotometry. The extraction of tannins from sapodilla peel (Manilkara zapota) was carried out by maceration method using 70 % ethanol. Based on the research results it was found that the total content of sapodilla peel extract was 3,058 mg GAE/g extract. The results of the larvicide test showed that the sapodilla peel extract could be used as an Aedes aegypti larvicide with the most effective concentration in killing 50% of the larvae at a concentration of 20,000 ppm.
IDENTIFIKASI METABOLIT SEKUNDER DAN UJI INHIBISI XANTIN OKSIDASE EKSTRAK DAUN KERSEN (Muntingia calabura L) Surya Efendi, Meilisa Rusdiana; Trisnawati, Ade
CHEDS: Journal of Chemistry, Education, and Science Vol 6, No 2 (2022)
Publisher : Universitas Islam Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/cheds.v6i2.6272

Abstract

Penelitian ini bertujuan untuk mengetahui kandungan senyawa golongan metabolit sekunder dan menguji kemampuan daun kersen dalam menghambat xantin oksidase. Daun kersen diekstraksi dengan cara dimaserasi menggunakan pelarut etanol 70% kemudian diuji secara kualitatif kandungan senyawa metabolit sekundernya. Pengujian penghambatan xantin oksidase dilakukan menggunakan spektrofotometer pada panjang gelombang 290 nm dengan kondisi pH 7,5, konsentrasi substrat xantin 0,15 mM. dan suhu inkubasi 30oC. Uji penghambatan pada Alopurinol memiliki nilai IC50 sebesar 0,50 µg/mL sedangkan ekstrak daun kersen memiliki nilai IC50 sebesar 1,17 µg/mL. Identifikasi secara kualitatif kandungan senyawa metabolit sekunder pada ekstrak etanol daun kersen mengandung flavonoid, saponin, tanin, steroid dan alkaloid.
Pengaruh Konsentrasi Ekstrak Etanol dari Daun Sembukan (Paederia foetida L) Sebagai Inhibitor Korosi Logam Besi padaLarutan HCl 1M dan Air Laut Novitaningrum, Elis; Setiawan, Mohammad Arfi; Trisnawati, Ade
Eksergi Vol 20 No 3 (2023)
Publisher : Prodi Teknik Kimia, Fakultas Teknik Industri, UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/e.v20i3.10163

Abstract

The massive development of industry creates human using various of metal which available in the nature for being contruction, for example a Iron metal. The iron is a transition metal on periodic table which often used on industry and building construction, however iron is a corrodiable metal. The metal  corrotion must be solved cause create many of loss.  Therefore, the study aimed to examine sembukan leaf extract in various consentration, 0%, 2%, 4%, 6%, 8% to seawater and HCl 1M during 7 days of contact moment. The correlation strenght between variable using regression linier method. Based on study that  the higher consentration inhibitor and the corrotion rate decreases. He highest efficiency using seawater is 89,9% and using HCl 1 is 68,9%. The highest correlation between variable is 93,2% using seawater. Th e conclution  is sembukan leaf extract effective  to protect iron corrotion of seawater
Characterization of Activated Carbon from Mangosteen Peel (Garcinia Mangostana L.) Activated with Phosphoric Acid (H3PO4) Indrastika, Erwin Riski; Hidayati, Nasrul Rofiah; Trisnawati, Ade
Hydrogen: Jurnal Kependidikan Kimia Vol. 13 No. 1 (2025): February 2025
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v13i1.14557

Abstract

Mangosteen peel (Garcinia Mangostana L.) represents a waste that has yet to find widespread application. One effort to increase the economic value of mangosteen rind is by processing mangosteen rind into active carbon, which can be used in various industrial processes. This research will examine the manufacture of activated carbon using mangosteen peel as raw material, which is washed clean, cut, and dried, then carbonized using a furnace at a temperature of 250 0C for 1 hour. Activating activated carbon from mangosteen peel is carried out by immersion in a 5 M concentration of phosphoric acid (H₃PO₄). Next, the characteristics of activated carbon from mangosteen peel are examined, including water content, ash content, volatile matter content, and pure carbon content. The study shows that activated carbon meets the SNI-06-3730-1995 standards for its water content (2.76%), ash content (7.24%), volatile matter content (6.02%), and pure carbon content (83.98%).
Enhancing Students' Chemical Literacy with Environmental Problem-Based Learning Models through Lesson Study Practices Trisnawati, Ade; Permatasari, Adina Amelia
Hydrogen: Jurnal Kependidikan Kimia Vol. 13 No. 2 (2025): April 2025
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v13i2.15246

Abstract

The purpose of this study was to determine the increase in students’ chemical literacy skills after being taught an environmental problem-based learning model through lesson study practices using quantitative descriptive analysis methods. This research flow uses the Lesson Study cycle stages consisting of Plan, Do, See, and Redesign. The subjects of this study were 17 first semester students of the Chemical Engineering and Physics Education Study Program at PGRI Madiun University who took basic chemistry courses. The data collected in this study were in the form of observation data and tests that measured students’ chemical literacy skills. The results showed that students’ chemical literacy skills were at a moderate level. In the Knowledge of Science and Chemical Content and Chemistry in Context aspects, the number of students who understood the concept increased, and the number of students who had misconceptions and did not understand the idea decreased. In the HOLS aspect, the most significant number of student answers were at the FSL level in terms of explaining the types of chemical bonds and depicting Lewis structures and in the explanation related to the possibility of compounds formed and the formation process of certain elements, the most significant number of student answers were at the NSL level. In the aspect of attitude, the learning outcomes show that most students’ answers are at the NSL level. In this study, it can be seen that students' chemical literacy skills with problem-based learning have not been able to provide significant changes. Therefore, further steps are needed to improve the learning process that can support students’ chemical literacy skills.
Pelatihan Penggunaan Aplikasi Kimia Chem Bio Draw dan Hyperchem Untuk Membangun Dasar Pemahaman Visual Struktur Senyawa Kimia Kepada Mahasiswa Universitas PGRI Madiun Trisnawati, Ade; Ayu Sudarni, Dyan Hatining; Kurniawan, Ahmad Misfa; Setiawan, Mohammad Arfi; Sani, Nabila Mutiara
Abdimas Awang Long Vol. 9 No. 1 (2026): Januari, Abdimas Awang Long
Publisher : Sekolah Tinggi Ilmu Hukum Awang Long

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56301/awal.v9i1.1885

Abstract

Materi ikatan kimia merupakan salah satu materi yang penting untuk dipelajari oleh mahasiswa Teknik Kimia. Namun, mahasiswa seringkali menghadapi kesulitan dalam memahami struktur senyawa kimia. Hal ini disebabkan oleh keterbatasan dalam menggambar struktur dan reaksi kimia, serta memprediksi sifat dan reaktivitas molekul. Selain itu, kurangnya keterampilan berbasis teknologi dalam bidang ini juga menjadi masalah. Aplikasi kimia seperti Chem Bio Draw dan Hyperchem sangat penting untuk memvisualisasikan, memanipulasi, dan menganalisis struktur senyawa kimia dengan presisi tinggi, namun banyak mahasiswa belum familiar dengan penggunaannya. Pelatihan ini bertujuan untuk meningkatkan pemahaman visual mahasiswa terhadap struktur senyawa kimia dan membekali mereka dengan keterampilan menggunakan aplikasi Chem Bio Draw dan Hyperchem. Kegiatan pengabdian masyarakat ini melibatkan mahasiswa Teknik Kimia dan Pendidikan Fisika yang telah menempuh mata kuliah Kimia Dasar. Pelatihan ini mencakup lima tahapan utama yaitu identifikasi masalah melalui pre-test, pengumpulan data, pengumpulan bahan materi, pelaksanaan sosialisasi dan pelatihan, serta evaluasi dengan post-test dan monitoring. Hasil pre-test menunjukkan bahwa hanya 15,3% peserta yang memiliki pemahaman awal tentang aplikasi Chem Bio Draw dan Hyperchem. Setelah sosialisasi dan pelatihan, terjadi peningkatan signifikan pada hasil post-test, di mana 71% peserta menunjukkan pemahaman yang baik mengenai aplikasi dan cara penggunaannya untuk mengolah data serta membuat permodelan molekul. Peningkatan pemahaman sebesar 56,5% dari pre-test ke post-test ini mengindikasikan bahwa kegiatan pelatihan efektif dalam meningkatkan wawasan dan kemampuan mahasiswa dalam penggunaan aplikasi kimia tersebut. Secara keseluruhan, pelatihan ini dapat membantu mahasiswa mengatasi kesulitan dalam pemahaman struktur senyawa kimia dan meningkatkan keterampilan mereka dalam menggambar, memprediksi sifat molekul, serta memanfaatkan teknologi dalam kimia. Kegiatan ini dapat menjadi model dasar untuk kegiatan serupa di masa mendatang.
IMPROVING STUDENTS’ CHEMICAL LITERACY SKILLS THROUGH PROBLEM-BASED LEARNING MODELS ON STOICHIOMETRY TOPICS Trisnawati, Ade; Permatasari, Adinda Amelia; Surya Efendi, Meilisa Rusdiana
UNESA Journal of Chemical Education Vol. 15 No. 1 (2026)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ujced.v15n1.p38-45

Abstract

The purpose of this study was to determine students’ chemical literacy skills after being taught stoichiometry using a problem-based learning model. The Research design is a pre-experimental design with a one-group pretest-posttest design. The sample in this study was 13 new students of Chemical Engineering at PGRI Madiun University in the 2025/2026 academic year. Data collection used a context-based chemical literacy test carried out before and after PBL learning. Based on the Research, the pretest results showed that 100% of students had low chemical literacy, while the posttest results showed that 74% had low chemical literacy and 16% had moderate chemical literacy. Then, the analysis of students' chemical literacy levels from their pretest answers showed the highest percentage at the Scientific Illiteracy Level (72%) and the posttest results showed the most significant percentage at the Functional Scientific Literacy Level (32%). The implementation of PBL to improve students’ chemical literacy skills should consider several factors, such as the lecturer’s support for learning, the selection of material topics, information on students’ misconceptions in stoichiometry, and alignment between the activity design and targeted literacy indicators.
Co-Authors Abda Abda Adinda, Ayuni Agung Prasongko anisa dwi lestari Ardiani Samti Nur Azizah Ayu W, Novia Fahmi Churnia Sari Dyah Setyaningrum, Dyah Effendi, Meilisa Rusdiana Surya Farida Isroani Febriyandhi Yahya Febriyandhi Yahya Febriyandhi Yahya Fungki Ade Yusup Fungky Ade Yusuf Habibie, Pahman Indrastika, Erwin Riski Jesika Septia Ningsih Kelik Sussolaikah Kurniawan, Ahmad Misfa Mohammad Arfi Setiawan Mohammad Arfi Setiawan, Mohammad Arfi Nadia Fikri Anti Nasrul Rofiah Hidayati Nasrul rofiah hidayati Nasrul Rofiah Hidayati, Nasrul Rofiah Novitaningrum, Elis Nur Ihda Farikhatin Nisa Permatasari, Adina Amelia Permatasari, Adinda Amelia Prasetyo, Sisman Restiawati, Mayang Rima Nurjanah Sani, Nabila Mutiara Septiana Nurmala Dewi Sri Wahyuningsih Sri Wahyuningsih Sudarni, Dyan Hatining Ayu Sutarman, Asep