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All Journal Jurnal Inovasi Pendidikan IPA Jurnal Agrotek UMMat Jurnal Pengabdian Magister Pendidikan IPA AS-SABIQUN: Jurnal Pendidikan Islam Anak Usia Dini SPIN: Jurnal Kimia & Pendidikan Kimia
Muti’ah Muti’ah
Universitas Mataram
Religion Agriculture, Biological Sciences & Forestry Chemistry Decision Sciences, Operations Research & Management Education Library & Information Science Mathematics Other

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UJI AKTIVITAS ANTIOKSIDAN PADA EKSTRAK ETANOL DAUN JAMBU METE (Anacardium occidentale L.) Dina Soes Putri; Muti’ah Muti’ah; Yunita Arian Sani Anwar
Jurnal Agrotek Ummat Vol 5, No 1 (2018): February
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (199.337 KB) | DOI: 10.31764/agrotek.v5i1.239

Abstract

Tujuan dari penelitian ini adalah mengetahui metabolit sekunder apa saja yang berpotensi sebagai antioksidan dari ekstrak etanol daun jambu mete dan mengetahui aktivitas antioksidan dari ekstrak etanol daun jambu mete. Pada penelitian ini telah dilakukan penapisan fitokimia dan uji aktivitas antioksidan pada ekstrak etanol dan fraksi-fraksi ekstrak etanol daun jambu mete muda yang berasal dari daerah Kayangan, Lombok Utara. Berdasarkan uji fitokimia diketahui bahwa ekstrak etanol dari daun jambu mete muda mengandung metabolit sekunder jenis polifenol, tanin, flavonoid, dan steroid. Dari hasil uji aktivitas antioksidan dengan metode DPPH disimpulkan bahwa ekstrak etanol dan fraksi-fraksinya bersifat aktif sebagai antioksidan terhadap radikal bebas DPPH. Dimana, fraksi etanol-air merupakan fraksi yang paling aktif dengan nilai IC­50 sebesar 0,26 ppm, sedangkan fraksi yang paling kurang aktif adalah fraksi n-heksan dengan IC50 sebesar 10,72 ppm. The aims of this research were to find out which secondary metabolite that potential as antioxidant from ethanol extract of cashew leaf and to find out the radical scavenging activity from ethanol extract of cashew leaf. The sample of this research was the young leaf of cashew taken from Kayangan, North Lombok. Phytochemical screening and antioxidant assay have been conducted to ethanol extract and its fractions. The result of phytochemical screening shown that etanol extract of young cashew leaf contain of polyphenol, tannin, flavonoid, and steroid. Based on antioxidant assay using DPPH method, it can be concluded that ethanol extract and its fractions were highly active as scaveging agent compared to synthetic antioxidant BHA. Where, ethanol-water fraction is the most active fraction with IC50 value of 0,26 ppm, while the least active fraction is n-hexane fraction with IC50 value of 10.72 ppm.
Pengembangan Kemampuan Berpikir Kreatif Mahasiswa melalui Pembelajaran Berbasis Proyek pada Mata Kuliah Kimia Lingkungan di Masa Pandemic Covid 19 Syarifa Wahidah Al-Idrus; Muti’ah Muti’ah; R. Rahmawati
AS-SABIQUN Vol 3 No 1 (2021): MARET
Publisher : Pendidikan Islam Anak Usia Dini STIT Palapa Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36088/assabiqun.v3i1.1117

Abstract

This research aims to develop students' creative thinking skills. This study used a classroom research method with a one-shot case study design. The sample in this study were students of environmental chemistry at the Chemistry Education Study Program, FKIP UNRAM. Observation data will be obtained based on observation sheets to describe student activities and creativity from the beginning of the project to the end of the project. The project that is given focuses on environmental pollution material. The results of this study indicate that students are very active in the project-based learning process. Students' creative thinking skills in designing simple experiments about environmental pollution are in a good and very good position. The generating stage with a value of 90 (very good), the planning stage with a value of 88 (very good), the producing / producing stage is very good (88), the checking stage 80 is good, and the critiquing stage with a value (Good).
Pendampingan Implementasi Pembelajaran Guided Discovery Melalui Lesson Study for Learning Community (LSLC) untuk Peningkatan Kemampuan Berpikir Kritis Kimia Siswa SMA Zonasi Narmada Kabupaten Lombok Barat Muntari Muntari; Muti’ah Muti’ah; Syarifa Wahidah Al Idrus; Supriadi Supriadi
Jurnal Pengabdian Magister Pendidikan IPA Vol 4 No 1 (2021)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (279.174 KB) | DOI: 10.29303/jpmpi.v4i1.603

Abstract

The implementation of the learning process is always oriented towards the mastery of competence by students. One of the important competencies possessed by students is high order thinking skills (HOTS). Based on the results of observations in several high schools in the Narmada zoning, West Lombok district, it was obtained: (1) The ability of student’s critical thinking in chemistry on average was still low; (2) Students do not have the opportunity to develop the potential for critical thinking skills in learning due to the use of unsuitable learning models; (3) The ability of teachers to apply learning models that can improve students' critical thinking skills is still low; and (4) Teachers carry out learning individually so that it is difficult to evaluate the learning process as a result of continuous improvement of learning difficult to implement. The solution offered in this community service activity is in the form of teacher assistance in implementing zoning-based of lesson study for learning communities (LSLC) to improve students' critical thinking skills in chemistry. The targets of this community service activity are teachers of chemistry subjects from SMA Negeri 1 Narmada, SMA Negeri 2 Narmada, SMA Negeri 1 Lingsar, and SMA NW Narmada. This activity was carried out with a training approach, learning practice, and reflection. This activity was carried out in two stages: the first stage is socialization and workshop about LSLC, then in the second stage the lesson study (LS) practice. The results achieved from this activity are: (1) Students' critical thinking skills in chemistry subjects need to be continuously improved through various learning innovations, one of which is by implementing guided discovery learning; (2) Increased understanding of teachers regarding the principles, benefits, and scope of the lesson study and LSLC appropriately; and (3) The increased enthusiasm of teachers to implement lesson study-based learning improvements which consist of planning stages (plan), implementation of learning and observation (do), and reflection (see), and re-design.
The exploration of biochemistry laboratory activity: Study on higher education in Mataram Yunita Arian Sani Anwar; Muti’ah Muti’ah
Jurnal Inovasi Pendidikan IPA Vol 9, No 1: April 2023
Publisher : Faculty of Mathematics and Natural Sciences, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jipi.v8i1.48920

Abstract

As the core of science learning, laboratory work is inseparable from learning chemistry, including biochemistry. However, the implementation of laboratory work needs reconstruction, especially in higher education, so an initial study is needed to understand the problems in laboratory work at universities. This article was a study of the working conditions of the biochemistry laboratory at the University of Mataram. This study included quantitative research with students (N = 250), lab work assistants (N = 36), laboratorium staff (N = 4), and biochemistry lecturers (N = 4) as respondents. Techniques for obtaining data through participatory observation and questionnaires. Supporting data were obtained through interviews with students, lecturers, laboratory assistants, and laboratory personnel representatives. The results showed that the implementation of biochemistry lab work at the University in Mataram had gone through the pre-laboratory, laboratory work, and post-laboratory stages. Expository, inquiry, and demonstration are lab work methods, with 80% of the implementation using the expository method. Instructions related to waste handling have not been carried out in the implementation of biochemistry lab work. Based on these findings, several recommendations were put forward for improving the biochemistry lab work at the University.
PENGARUH MODEL PEMBELAJARAN PROBLEM BASED LEARNING BERBANTUAN MEDIA RODA PUTAR TERHADAP KEMAMPUAN BERPIKIR KRITIS SISWA PADA MATERI LAJU REAKSI DI SMA NEGERI 1 LABUHAN HAJI Zulfan Hatami Zulfan; Burhanuddin Burhanuddin; Muti’ah Muti’ah; Rahmawati Rahmawati
SPIN JURNAL KIMIA & PENDIDIKAN KIMIA Vol. 5 No. 1 (2023): Januari - Juni 2023
Publisher : UIN Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20414/spin.v5i1.6883

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh model pembelajaran Problem Based Learning berbantuan media roda putar terhadap kemampuan berpikir kritis siswa di SMA Negeri 1 Labuhan Haji. Metode yang digunakan adalah quasi eksperimen dengan desain nonequivalent control group yang dilaksanakan di kelas XI IPA 1 dan XI IPA 2 sebanyak 68 siswa. Teknik sampling yang digunakan yaitu purposive sumpling, dengan kelas XI IPA 2 sebagai kelas eksperimen dan kelas XI IPA 1 sebagai kelas kontrol. Pengumpulan data menggunakan pretest dan posttest pada kelas kontrol dan kelas eksperimen. Berdasarkan hasil analisis data diperoleh peningkatan kemampuan berpikir kritis siswa kelas eksperimen dan kelas kontrol dengan rerata N-Gain yaitu 0.65 dan 0.55 pada kategori cukup efektif dan kurang efektif. Pengujian data menggunakan non-parametrik yaitu uji Mann-Whitney. Hasil uji Mann-Whitney yaitu sebesar 0.000 < taraf signifikan yaitu 0.05, maka dapat disimpulkan bahwa terdapat pengaruh model pembelajaran Problem Based Learning berbantuan media roda putar terhadap kemampuan berpikir kritis siswa pada materi laju reaksi di SMA Negeri 1 Labuhan Haji, hal ini terbukti bahwa pemberian perlakuan yang berbeda akan mendapatkan hasil yang berbeda.
Co-Authors Burhanuddin Burhanuddin Muntari Muntari Putri, Dina Soes R. Rahmawati Rahmawati Rahmawati Supriadi Supriadi Syarifa Wahidah Al Idrus Yunita Arian Sani Anwar Zulfan Hatami Zulfan