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All Journal The Journal of Pure and Applied Chemistry Research Elkawnie Jurnal Zarah Orbital: Jurnal Pendidikan Kimia Jurnal Purifikasi Dalton : Jurnal Pendidikan Kimia dan Ilmu Kimia Jambura FIsh Processing Journal Jambura Journal of Educational Chemistry Jambura Journal of Chemistry Abdimas Umtas : Jurnal Pengabdian kepada Masyarakat Journal Syifa Sciences and Clinical Research (JSSCR) Jurnal Crystal : Publikasi Penelitian Kimia dan Terapannya Jurnal Inovasi Teknik Kimia Jurnal Sibermas (Sinergi Pemberdayaan Masyarakat) JURNAL KIMIA SAINTEK DAN PENDIDIKAN JAGE Nian Tana Sikka: Jurnal Ilmiah Mahasiswa Journal Serambi Engineering (JSE) Pentagon: Jurnal Matematika dan Ilmu Pengetahuan Alam Damhil: Jurnal Pengabdian kepada Masyarakat Jurnal Cendekia Ilmiah Jurnal Pendidikan Kimia, Fisika dan Biologi Konstanta : Jurnal Matematika dan Ilmu Pengelatuan Alam
Wiwin Rewini Kunusa
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Religion Agriculture, Biological Sciences & Forestry Arts 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 Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Public Health Social Sciences Other

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Pemanfaatan Limbah Tandan Kosong Kelapa Sawit (Elaies Guineensis Jacq.) Sebagai Briket Bioarang Meyrin Hamzah; Erni Mohamad; Nita Suleman; Ishak Isa; Wiwin Rewini Kunusa; Arviani Arviani
Konstanta : Jurnal Matematika dan Ilmu Pengetahuan Alam Vol. 3 No. 1 (2025): Jurnal Matematika dan Ilmu Pengelatuan Alam
Publisher : International Forum of Researchers and Lecturers

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/konstanta.v3i1.4723

Abstract

This study aims to determine the process of making oil palm empty fruit bunch briquettes through variations in tapioca flour as an alternative material, through the stages of research which include briquette making, namely drying, carbonization and printing. Briquette characterization includes proximate tests, namely water content, ash content, calorific value and densit. From the results of the proximate test at a ratio of 91:9, it shows that the quality of oil palm empty fruit bunch biochar briquettes with a moisture content of 7.07%, ash content of 8.769%, calorific value of 5850.2 cal/g and density of 0.55 g/cm3. The utilization of oil palm empty fruit bunches not only reduces waste, but also provides a solution for sustainable energy needs.
Pengembangan Pupuk Organik dari Limbah Kotoran Sapi dan Aplikasinya pada Budidaya Cabai Ramah Lingkungan Kunusa, Wiwin Rewini; Musa, Weny J.A; Tangio, Julhim S; Potale, Stefani Meylan; Histina, Maria; Ibrahim, Febriyanti
Damhil: Jurnal Pengabdian kepada Masyarakat Vol 4, No 2: December 2025
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/damhil.v4i2.36071

Abstract

Program pemberdayaan masyarakat ini bertujuan untuk mengoptimalkan penggunaan lahan yang dikelola PKK di Desa Dutohe Barat melalui budidaya cabai yang didukung oleh pupuk organik yang terbuat dari limbah kotoran sapi. Saat ini, kotoran sapi di desa tersebut masih kurang dimanfaatkan dan seringkali menjadi masalah lingkungan, meskipun mengandung nutrisi penting yang dapat meningkatkan kesuburan tanah dan meningkatkan produktivitas pertanian jika diolah dengan benar. Program ini berfokus pada pelatihan anggota PKK untuk memproduksi pupuk organik dari limbah kotoran sapi dan memberikan bantuan teknis untuk budidaya cabai yang ramah lingkungan. Pendekatan terpadu ini diharapkan dapat meningkatkan produktivitas lahan PKK, memperkuat ketahanan pangan lokal, dan menciptakan peluang bagi kegiatan ekonomi kreatif berbasis masyarakat, khususnya bagi kelompok perempuan. Inisiatif ini mempromosikan sistem pertanian berkelanjutan yang berlandaskan prinsip ekonomi sirkular, di mana limbah ternak diubah menjadi produk bernilai tambah. Selain meningkatkan kesejahteraan masyarakat, program ini berkontribusi pada Tujuan Pembangunan Berkelanjutan (SDG) utama, termasuk SDG 2 (Nol Kelaparan), SDG 8 (Pekerjaan Layak dan Pertumbuhan Ekonomi), SDG 12 (Konsumsi dan Produksi yang Bertanggung Jawab), dan SDG 13 (Aksi Iklim). Program ini tidak hanya mengatasi kebutuhan pangan tetapi juga menyediakan solusi inovatif untuk pengelolaan lingkungan dan mendukung pengembangan ekonomi kreatif tingkat desa. Hasil yang diharapkan meliputi lahan produktif yang dikelola PKK, pupuk organik produksi lokal, dokumentasi kegiatan dalam bentuk video, tautan penyebaran di YouTube, dan publikasi jurnal di ABDIMAS . Program ini mengikuti beberapa langkah metodologis: pengembangan peta jalan kegiatan, observasi lapangan, desain program, identifikasi kelompok sasaran, perencanaan implementasi, indikator keberhasilan, dan evaluasi. Implementasi meliputi observasi lapangan awal, pelatihan produksi pupuk, aplikasi budidaya cabai, pemantauan pertumbuhan tanaman, dan pembentukan kelompok usaha perempuan PKK yang berfokus pada pertanian berbasis cabai.
The Type Fragmentation Patterns Confirmed Acetaminophen By Using Liquid Chromatography-Mass Spectroscopy (LCMS) From Herbal Medicine (Jamu) Muhammad Taupik; Endah Nurrohwinta Djuwarno; Moh Adam Mustapa; Wiwin R Kunusa; Jafar La Kilo; Muhamad Handoyo Sahumena
Elkawnie Vol. 7 No. 2 (2021)
Publisher : Faculty of Science and Technology Universitas Islam Negeri Ar-Raniry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/ekw.v7i2.7492

Abstract

Abstract: The Jamu or herbal medicine were adulterated with chemical drugs in the last twenty years. One of the chemical drugs that are commonly added to herbal medicine is acetaminophen. Acetaminophen is generally considered an analgesic-antipyretic drug. The research aims to identify the content of paracetamol and its amount added to the jamu. This study consisted of 6 jamu or herbal medicine samples with different brands. The TLC method conducted the qualitative analysis using the mobile phase n-hexane: ethyl acetate (1:1). Three positive samples containing acetaminophen were obtained: D, E, and F. The three positive samples containing acetaminophen were calculated using the LCMS method. Quantitative analysis was conducted with LCMS using a reversed-phase with a mobile phase of acetonitrile: water (15%>: 85%> v/v) at a flow rate of 0.2 mL/min and an injection volume of 5 µL, it was obtained the levels of acetaminophen in sample D as much as  0.16 g/2 g of sample, in sample E of 0.63 g/7 g of sample, and sample F of 0.56 g/7 g of sample. Although the acetaminophen content in herbal medicine is relatively small, according to the Regulation of the Minister of Health of Indonesia No. 007 of 2012, traditional medicine or herbal medicine should not contain synthetic chemicals.Abstrak: Dalam dua puluh tahun terakhir, banyak jamu yang dipalsukan dengan obat-obatan kimia. Salah satu obat kimia yang biasa ditambahkan pada jamu adalah asetaminofen. Acetaminophen umumnya dianggap sebagai obat analgesik-antipiretik. Penelitian ini bertujuan untuk mengetahui kandungan parasetamol dan jumlah yang ditambahkan pada jamu. Sampel penelitian ini terdiri dari 6 sampel jamu dengan merek yang berbeda. Analisis kualitatif dilakukan dengan metode KLT menggunakan fase gerak n-heksana: etil asetat (1:1). Diperoleh tiga sampel positif mengandung asetaminofen, yaitu sampel D, E, dan F. Tiga sampel positif mengandung asetaminofen dihitung menggunakan metode LCMS. Analisis kuantitatif dilakukan dengan LCMS menggunakan fase terbalik dengan fase gerak asetonitril: air (15%>:85%> v/v) pada laju alir 0,2 mL/menit dan volume injeksi 5 µL. Diperoleh kadar asetaminofen pada sampel D sebanyak 0,16 g/2 g sampel, pada sampel E sebesar 0,63 g/7 g sampel, dan pada sampel F sebesar 0,56 g/7 g sampel. Meskipun kandungan asetaminofen dalam jamu relatif sedikit, namun menurut Peraturan Menteri Kesehatan RI No. 007 Tahun 2012, obat tradisional atau jamu tidak boleh mengandung bahan kimia sintetik.
Identifikasi Miskonsepsi Siswa Menggunakan Test Diagnostic Five Tier Multiple Choice pada Materi Reaksi Redoks di SMAN 1 Limboto Ibrahim, Sufriyanto; Mohamad, Erni; Munandar, Haris; Pikoli, Masrid; Kunusa, Wiwin Rewini; Tangio, Julhim S.; Kurniawati, Erga
J-CEKI : Jurnal Cendekia Ilmiah Vol. 3 No. 6: Oktober 2024
Publisher : CV. ULIL ALBAB CORP

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Redox reactions are a type of chemical material that contains many concepts and rules that are recognized as difficult to comprehend and comprehend and often give rise to misconceptions in students. This research aims to find out the misconceptions that occur among students in understanding redox reaction material and find out the source of the causes of students' misconceptions. The method used in the research is descriptive qualitative. This research was carried out in the odd semester of the 2023/2024 academic year. The subjects of this research were class XII MIPA students at SMAN 1 Limboto with a total sample of 181 people. Identification of misconceptions is carried out using a five-tier multiple-choice test instrument. Student answers from the test are then analyzed and categorized based on the student's level of conception. The research results show that the average percentage of students' conceptions on redox reaction material is 28.6% understanding the concept, 48.2% misconceptions, and 23.2% not understanding the concept. Apart from that, the highest cause of misconceptions comes from personal thoughts at 91.1%.
AKTIVITAS ANTIOKSIDAN HIDROLISAT PROTEIN TULANG IKAN SELAR BENTONG (Selar Crumenophthalmus) HASIL HIDROLISIS ENZIM PAPAIN Fitri Hadji; Deasy N. Botutihe; Najmah Najmah; Nurhayati Bialangi; Wiwin Rewini Kunusa
Jurnal Crystal : Publikasi Penelitian Kimia dan Terapannya Vol. 7 No. 2 (2025): Literasi Artikel Penelitian Kimia
Publisher : Program Studi Kimia, Fakultas MIPA, Universitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/jc.v7i2.6186

Abstract

Ikan selar bentong (Selar crumenophthalmus) merupakan salah satu ikan pelagis kecil yang banyak terdapat di perairan Gorontalo dan memiliki nilai ekonomis penting. Hasil perikanan samping berupa tulang ikan masih jarang dimanfaatkan, meskipun kandungan proteinnya cukup tinggi dan berpotensi menghasilkan produk bernilai fungsional. Penelitian ini bertujuan untuk mengkarakterisasi hidrolisat protein tulang ikan selar bentong serta mengaktifkan aktivitas antioksidannya. Hidrolisis dilakukan menggunakan enzim papain dengan konsentrasi 2%, 4%, dan 6% selama 4 jam pada kondisi optimal. Parameter yang dianalisis meliputi kadar protein, derajat hidrolisis, uji kualitatif asam amino, serta aktivitas antioksidan menggunakan metode ABTS. Hasil penelitian menunjukkan bahwa kadar protein tulang ikan meningkat dari 10,47% pada kondisi mentah menjadi 33,19% pada konsentrasi enzim 2%, 35,08% pada konsentrasi 4%, dan 37,35% pada konsentrasi 6%. Nilai derajat hidrolisis juga meningkat dengan penambahan enzim, dengan nilai tertinggi 83,16% pada konsentrasi 6%. Aktivitas antioksidan terbaik ditunjukkan pada konsentrasi enzim 6% dengan nilai IC50 sebesar 0,98 mg/mL, mendekati vitamin C (0,12 mg/mL). Simpulan dari penelitian ini adalah hidrolisat protein tulang ikan selar bentong berpotensi sebagai sumber antioksidan alami yang dapat diterapkan dalam pengembangan fungsional pangan maupun suplemen kesehatan. Kata kunci : ikan selar bentong, protein hidrolisat, papain, antioksidan, ABTS
Sintesis Karbon Aktif dari Akar dan Rimpang Lidah Mertua (Sansevieria Trifasciata) sebagai Biosorben Merkuri (Hg) pada Limbah Tambang Qalifa Mashita Baga; Suleman Duengo; Wiwin Rewini Kunusa; Astin Lukum; Akram La Kilo
Journal of Applied Geoscience and Engineering Vol 5, No 1 : Juni 2026
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jage.v5i1.39091

Abstract

Mercury (Hg) pollution caused by small-scale gold mining activities poses a serious environmental threat due to its toxic nature, tendency to accumulate, and ability to contaminate water and soil. This study aims to analyse the chemical and morphological characteristics of activated carbon derived from the roots and rhizomes of the snake plant (Sansevieria trifasciata) as a biosorbent, to determine its adsorption capacity in reducing mercury levels in gold mine tailings, and to investigate the influence of biosorbent mass and contact time on adsorption capacity. SEM characterisation results showed that activated carbon had more open pores than unactivated carbon. FT-IR analysis identified the presence of active functional groups, namely –OH, C=C, C–H and C–O, which play a role in the adsorption of mercury ions. The moisture content test yielded a result of 9.2639%, which meets the SNI 06-3730-1995 standard, while the ash content was found to be 17.5682%. Analysis using an atomic absorption spectrophotometer (AAS) showed that the initial mercury concentration in the tailing waste was 0.0263 mg/L and could be reduced to 0.0132 mg/L with 1 g of biosorbent, 0.0045 mg/L with 3 g, and 0 mg/L with 5 g of biosorbent after 360 minutes of contact time.
Profil Kandungan Kimia dan Potensi Senyawa Aktif Limbah FABA untuk Pengembangan Pupuk Berkelanjutan Wiwin Rewini Kunusa; Suleman Duengo; Julhim S. Tangio; Erni Mohamad; Nurul Fadilla Harun; Humairah Amatullah Duengo; Nuur Arif Syaifudin
Jambura Journal of Chemistry Vol 8, No 1 (2026): February
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jambchem.v8i1.37015

Abstract

Fly ash and bottom ash (FABA) generated from coal combustion in steam power plants have the potential to cause environmental contamination; however, their mineral content enables their reutilization as raw materials for inorganic fertilizers. This study aimed to evaluate the major metal element content in FABA-based fertilizer produced from the Anggrek Steam Power Plant, North Gorontalo Regency, in order to assess its potential as a nutrient source. Ca and Mg were analyzed using titration methods, while Al, Fe, P, and K were determined by UV–Vis spectrophotometry with good calibration curve linearity (r 0.97). The results showed that the K content in fertilizer samples 1 and 2 was 0.0189% and 0.0140%, respectively. Ca concentrations ranged from 16.8–21.6 mg/L and Mg from 7.29–10.21 mg/L. Al was detected within the range of 3.68–4.44 ppm, while Fe and P were identified in measurable amounts. The presence of Ca, Mg, and K as macronutrients indicates that FABA waste has potential as a raw material for inorganic fertilizer, while also supporting sustainable industrial waste management practices.
Effectiveness of the Conceptual Understanding Procedures (CUPS) Learning Model on Students' Higher-Order Thinking Skills in Basic Chemical Law Material Dea Pinangi; Mangara Sihaloho; Erga Kurniawati; Weny A Musa; Haris Munandar; Julhim S Tangio; Wiwin Rewini Kunusa
Jambura Journal of Educational Chemistry Vol 7, No 2 (2025): August
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jjec.v7i2.33884

Abstract

Students’ higher-order thinking skills in chemistry remain low due to the dominance of conventional teaching methods. This study aimed to investigate the effect of the CUPS (Conceptual Understanding Procedures) learning model on students’ higher-order thinking skills in the topic of basic laws of chemistry. Using a quasi-experimental design with a pretest-posttest control group, two classes of 28 students each from SMAN 1 Suwawa were selected as the experimental (CUPS-based learning) and control (conventional learning) groups. Data were analyzed using independent sample t-test. Results showed a greater improvement in the experimental class (pretest = 61, posttest = 79) compared to the control class (pretest = 39, posttest = 64). A significant difference was found between the groups (p = 0.001 < 0.05), leading to the rejection of the null hypothesis. These findings indicate that the CUPS learning model positively enhances students’ higher-order thinking skills, suggesting its potential for improving chemistry education
Problem Based Learning Model to Improve Analytical Thinking Skills of Grade XI Senior High School Students Sri Rahmawati Dukalang; Astin Lukum; Julhim S Tangio; Mangara Sihaloho; Wiwin Rewini Kunusa
Jambura Journal of Educational Chemistry Vol 8, No 2 (2026): August
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jjec.v8i2.39030

Abstract

Thermochemistry remains one of the most challenging topics in senior high school chemistry because students are required to understand abstract concepts, perform quantitative reasoning, and connect chemical phenomena with real-life contexts. However, students’ analytical thinking skills in thermochemistry are often still limited, particularly in differentiating, organizing, and attributing information during problem-solving activities. This study aimed to examine the effect of the Problem Based Learning model on improving Grade XI students’ analytical thinking skills in thermochemistry. The research employed a quasi-experimental method with a non-equivalent control group pretest-posttest design. The study was conducted at SMA Negeri 1 Kabila during the first semester of the 2025/2026 academic year, involving 49 students divided into an experimental class taught using Problem Based Learning and a control class taught using conventional instruction. Data were collected using a nine-item essay test and analyzed through normality, homogeneity, independent-samples t-test, and N-Gain analysis. The results showed that the data were normally distributed and homogeneous. The independent-samples t-test indicated a significant difference between the two classes, with tcount = 4.055 exceeding ttable = 1.678. The N-Gain results also showed that the experimental class achieved higher improvement across all analytical thinking indicators than the control class. These findings imply that Problem Based Learning is an effective instructional model for strengthening students’ analytical thinking skills in thermochemistry.
Enhancing Students’ Scientific Communication Skills in Electrochemistry through an Ethno-STEM–Based POE2WE Model Defliani Adam; Masrid Pikoli; Julhim S. Tangio; Wiwin Rewini Kunusa; Erga Kurniawati; Thayban Thayban
Jambura Journal of Educational Chemistry Vol 8, No 2 (2026): August
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jjec.v8i2.37694

Abstract

Students' scientific communication skills in electrochemistry have not developed optimally because learning tends to emphasize cognitive aspects. This study aims to examine the effect of applying the Prediction, Observation, Explanation, Elaboration, Write, and Evaluation (POE2WE) learning model based on Ethno-STEM on scientific communication skills in electrochemistry. This study used a quasi-experimental method with a nonequivalent control group design involving 62 students from Suwawa 1 Public High School who were divided into an experimental group and a control group. The research instruments consisted of a test in the form of seven essay questions and non-test instruments to assess scientific communication skills during the learning process. The Mann-Whitney test results showed an Asymp. Sig. (2-tailed) value < 0.001, indicating a significant effect of the application of the Ethno-STEM-based POE2WE learning model on students' scientific communication skills. Based on the N-Gain calculation results, the scientific writing indicator was in the high category, while the information representation indicator was in the moderate category in the experimental group. In addition, the non-test assessment results showed an increase in students' scientific communication skills in three of the four indicators observed in each learning meeting.
Co-Authors A. Mu’thi Andy Suryadi Adam Mustapa, Muhammad Ahmad Kadir Kilo Akram La Kilo Akram La Kilo Andimala, Febriyanti Anisyah A. MS. A Annisa Untuba Arviani Arviani Arwin, Muh. Astin Lukum Azrila Natania Korompot Basalama, Muhamad Tri Rezki Dea Pinangi Deasy N Botutihe Deasy N. Botutihe Defliani Adam Djalil, Jhodi Pratama Doly Prima Silaban Endah Nurrohwinta Djuwarno Erga Kurniawati Erni - Mohamad Erni Mohamad Febriyanti Andimala Febriyanti Andimala Fitri Hadji Frida Maryati Yusuf giu, fitri ani Guge, Sri Rahmawati HARIS MUNANDAR Haris Munandar Hendri Iyabu Hendrik Iyabu Histina, Maria Humairah Amatullah Duengo Ibrahim, Febriyanti Ibrahim, Indriyanti Ibrahim, Sufriyanto Indah Rahayu Sanusi Inrawani Inrawani Ishak Isa Ishak, Candrawati Ishka Isa Jafar La Kilo Jafar La Kilo Julhim S Tangio Julhim S Tangio Julhim S Tangio Julhim S. Tangio Julhim S. Tangio Karim, Cecy Rahma Karmila Bilondatu Kostiawan Sukamto, Kostiawan La Alio La Ode Aman Lukman A. R. Laliyo Mahdi Kilo Malae, Ismail Mangara Sihaloho Mardjan Paputungan Marnila Marnila Masrid Pikoli Meylani Frisilia Meyrin Hamzah Moh Izwarto Piyohu Moh. Fajri Moh. Fajri Langgene Muh. Arwin Muhamad Handoyo Sahumena Muhammad Taupik Mulyani Zahra Paramata Mulyani Zahra Paramata Murjiatunur Amboy Musa, Weni J.A Musa, Weny J.A. Najmah Najmah Netty Ino Ischak Ngabito, Putri Amalia Nita Suleman Nur Inda R Umadji Nur Inda R. Umadji Nur Isty Fidya Nur Rafida Akub Nur&#039;afni Suaib Nurfadilah M. Kasim Nurhayati Bialangi Nurul Fadilla Harun Nuur Arif Syaifudin Opir Rumape Pakaya, Agustina H. Pakaya, Sitti Masita A. Palari, Nuraini Potale, Stefani Meylan Putri Amalia Ngabito Qalifa Mashita Baga Rahmi I Ibrahim Ramli Utina Riryn Tahir Risti Ristianingsih Badu Romario Abdullah Roslina Imran Rusmani Tasanif Rustam I Husain Sahami, Ulin Sahrial Lakasim Siti Hadijah Lamato Bempa Siti Hairunisa Kandusu Siti Nur Hikma H. Hasbula Sitty Salsabilla Ishak Sri Rahayu Latif Sri Rahmawati Dukalang Sriyana Ohi Suci Damayanti Sufriyanto Ibrahim Suleman Duengo Syakina Marilan Daaliwa Thayban Thayban Thayban, Thayban Umadji, Nur Inda R. Vera Yustika Wa Ode Nurlisa Weny A Musa Weny J.A Musa Wina Zulfiana Tulie Yestin Takowa Yusuf, Risciana Yuszda K Salimi Yuszda K. Salimi Zikran Abdullah Zulfa K Muslimin Zulfikar Ahmad