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All Journal Walisongo Journal of Chemistry UNESA Journal of Chemical Education Jurnal Pengabdian Masyarakat Biologi dan Sains Jurnal Riset Pembelajaran Kimia
Maharani, Richa Nan
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Education Immunology & microbiology Physics Other

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Separation and Determination of Free Fatty Acids in Corn Oil and Palm Oil by Liquid-Liquid Extraction and Acidi-Alkalimetric Titration Rusdi, Hanumi Oktiyani; Kusumaningrum, Irma Kartika; Nareswari, Tsalis Jauza; Fauziah, Putri Nanda; Maharani, Richa Nan; Natasya, Shella
Walisongo Journal of Chemistry Vol 7, No 1 (2024): Walisongo Journal of Chemistry
Publisher : Department of Chemistry Faculty of Science and Technology Walisongo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/wjc.v7i1.20461

Abstract

Free Fatty Acids (FFA), which include unsaturated fatty acids like oleic and linoleic acid and saturated fatty acids like palmitic and stearic, are present in most oil compositions. The various negative impacts of FFA require these compounds to be eliminated.  This research aims to separate FFA using Liquid-Liquid Extraction (LLE) and determine the levels of FFA using acid-alkalimetric titration in corn oil and palm oil. FFA extraction was carried out for 4 minutes with a solvent ratio of 9,5 ml diethyl ether + 40 ml ethanol + 0,5 ml water. By adding 1M Na2SO4, re-extraction was carried out for 3 minutes. The results obtained were 0.95% FFA levels in corn oil and 1.26% FFA levels in palm oil. FFA levels of both oils are still below the SNI FFA percentage of 3%; besides that, it is found that the FFA levels in palm oil are higher than in corn oil
Pelatihan Modul Ajar Kurikulum Merdeka SMAN 3 Sidoarjo: Studi Pendahuluan Kebutuhan Widarti, Hayuni Retno; Habiddin, Habiddin; Parlan, Parlan; Setiawan, Nur Candra Eka; Rokhim, Deni Ainur; Maharani, Richa Nan; Pratiwi, Juwita Karina; Peni, Ristiwi
Jurnal Pengabdian Masyarakat Biologi dan Sains Vol 3, No 1 (2024): Jurnal Pengabdian Masyarakat Biologi dan Sains
Publisher : Universitas Indraprasta PGRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30998/jpmbio-sains.v3i1.2952

Abstract

Salah satu kebijakan yang menjadi perubahan dari Kurikulum 13 ke dalam Kurikulum Merdeka diantara lain adalah perangkat pembelajaran berupa RPP yang berubah menjadi Modul Ajar. Pengembangan potensi dan pelatihan perlu dilakukan terlebih lagi banyak pendidik yang mengalami kesulitan dalam mengembangkan perangkat pembelajaran yaitu modul ajar terutama dalam pembelajaran berdiferensiasi. Studi pendahuluan dilakukan untuk menganalisis kebutuhan terkait kesulitan mitra. Adapun alat ukur atau indikator yang digunakan untuk mengukur kebutuhan mitra dengan menggunakan angket. Berdasarkan data angket kepada mitra 91,43% responden mampu menjelaskan pengetahuan mengenai modul ajar. Pemahaman guru mengenai modul ajar didukung hasil survey bahwa semua guru mampu membedakan perangkat pembelajaran yang digunakan di kurikulum 2013 dan kurikulum merdeka.Tingginya presentase pemahaman modul ajar didukung dengan 91,43% responden sudah mencoba membuat modul ajar berdiferensiasi. Namun ditemukan 77,14% responden mengalami kendala ketika menyusun modul ajar berdiferensiasi. Berdasarkan analisis dan pembahasan di atas pembuatan modul ajar sebagai perangkat pembelajaran di SMAN 3 Sidoarjo belum optimal. Sosialisasi dan Pelatihan terkait modul ajar sebagai perangkat pembelajaran di era kurikulum merdeka perlu dilaksanakan sebagai solusi belum optimalnya pembuatan modul ajar sebagai perangkat pembelajaran terkhusus menekankan aspek pembelajaran berdiferensiasi. One of the policies to change Curriculum 13 to the Independent Curriculum is that the RPP learning tools become Teaching Modules. Potential development and training need to be carried out because many educators have difficulty developing teaching module learning tools, especially differentiated learning. A preliminary study was carried out to analyze the partners' difficulties needs. The measuring tools or indicators used to measure partner needs use questionnaires. Based on questionnaire data, 91.43% of respondents were able to explain their knowledge regarding teaching modules. Teachers' understanding of teaching modules is supported by survey results. All teachers are able to differentiate learning tools from the 2013 curriculum and the independent curriculum. The high percentage of understanding of teaching modules is supported by 91.43% of respondents who have tried to create differentiated teaching modules. However, 77.14% of respondents experienced problems preparing differentiated teaching modules. Based on the analysis and discussion, the creation of teaching modules for learning tools at SMAN 3 Sidoarjo is not optimal. Socialization and training of teaching modules for learning devices in the era of the independent curriculum need to be implemented as a solution to the lack of optimal creation of teaching modules for learning devices specifically emphasizing differentiated learning aspects.
PENGEMBANGAN INSTRUMENTASI ASSESMEN PRA-AS-FOR-OF LEARNING PADA MATERI INTRODUCTION OF CHEMISTRY UNTUK PENINGKATAN KOMPETENSI CALON GURU PROFESIONAL ERA KURIKULUM MERDEKA Widarti, Hayuni Retno; Sumarsono, Raden Bambang; Sulistina, Oktavia; Pratiwi, Juwita Karina; Maharani, Richa Nan; Rokhim, Deni Ainur
UNESA Journal of Chemical Education Vol. 14 No. 1 (2025)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ujced.v14n1.p22-28

Abstract

Di era Kurikulum Merdeka,beberapa guru kurang mampu mengetahui kemampuan peserta didik sehingga tidak dapat memfokuskan lebih dalam pada bidang yang sesuai dengan kemampuan peserta didik. Penelitian ini bertujuan mengembangkan assesmen pra-as-for-of learning sebagai sarana calon guru profesional untuk mengembangkan keterampilan penelitian dan meningkatkan pemahaman terhadap asesmen di era Kurikulum Merdeka. Pada penelitian ini menerapkan metode penelitian Research and Development (RnD) dengan model pengembangan ADDIE : Analysis (analisis), Design (Desain), Development (pengembangan), Implement (implementasi), dan Evaluate (evaluasi) yang hanya dilaksanakan hingga tahap development. Pengembangan ini menghasilkan produk berupa monograf asesmen pra-as-for-of learning pada materi intoduction of chemistry. Asesmen pra digunakan di awal pembelajaran, asesmen as digunakan sebagai refleksi pembelajaran yang mengusung penilaian diri dan teman sejawat, penilaian for digunakan untuk perbaikan hasil pembelajaran dan asesmen of digunakan untuk evaluasi akhir pembelajaran. Instrumen assesmen pra-as-for-of learning pada materi introduction of chemistry dikatakan layak digunakan dari hasil penilaian validasi konten sebesar 85,35%, validasi media sebesar 87,33% dan hasil uji keterbacaan sebesar 87,22%.
Development of E-Modules Assisted By Qr Code Through PBL Learning Based on Socio Scientific Issues (SSI) to Improve Critical Thinking Skills: Review Article Maharani, Richa Nan; Widarti, Hayuni Retno; Rokhim, Deni Ainur
Jurnal Riset Pembelajaran Kimia Vol 10, No 2 (2025): Jurnal Riset Pembelajaran Kimia
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jrpk.v10i2.23800

Abstract

Problem-based learning based on Socio Scientific Issues (SSI) is teaching by solving a problem that is related to real world life, especially in raising issues or problems. This review article aims to analyse the research trend of e-module teaching materials through problem-based learning based on Socio Scientific Issues (SSI) in terms of its essence, advantages and disadvantages. The method used is a qualitative method of literature review study approach. The results of data analysis show that during the period 2018-2023, problem-based learning based on Socio Scientific Issues (SSI) which integrates social issues or problems in real life can help students develop critical thinking skills according to the level of contextual issues presented through teaching materials in the form of E-modules or electronic modules.
Co-Authors Deni Ainur Rokhim Fauziah, Putri Nanda Habiddin Hanumi Oktiyani Rusdi Hayuni Retno Widarti Kusumaningrum, Irma Kartika Nareswari, Tsalis Jauza Natasya, Shella Oktavia Sulistina Parlan . Peni, Ristiwi Pratiwi, Juwita Karina Raden Bambang Sumarsono Setiawan, Nur Candra Eka