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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

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

Analysis of Concepts and Propositions through Multi-Representation Based Inquiry Learning on Colligative Properties Herunata, Herunata; Fauziah, Putri Nanda; Pramudita, Fisky Ayudya Citra; Natasya, Shella
JCER (Journal of Chemistry Education Research) Vol. 8 No. 1 (2024): Volume 8 No. 1 June 2024
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jcer.v8n1.p41-53

Chemistry is a science that studies the composition, structure, and properties or changes of matter. In chemistry, there are three levels of representation namely macroscopic, submicroscopic, and symbolic. Chemistry is a branch of science that requires students to have an understanding of concepts and mathematical skills, one of which is colligative properties. The aim of this research is to analyze the concept of colligative properties so that students don’t have misconceptions and can enhance their understanding through a multi-representation approach. The method used is the scientific approach, based on a series of five main learning experiences: Observing, Questioning, Reasoning, Associating and Communicating. Information collection techniques include concept maps, concept analysis, and propositions. Colligative properties consist of vapor pressure lowering, boiling point elevation, freezing point depression, and osmotic pressure. The van't Hoff factor is present in most colligative properties where the solute is an electrolyte substance.

Analysis of content development in chemical materials related to ethnoscience: a review Widarti, Hayuni Retno; Wiyarsi, Antuni; Yamtinah, Sri; Siddiq, Ari Syahidul; Sari, Meyga Evi Ferama; Fauziah, Putri Nanda; Rokhim, Deni Ainur
Journal of Education and Learning (EduLearn) Vol 19, No 1: February 2025
Publisher : Intelektual Pustaka Media Utama

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/edulearn.v19i1.21210

One way to preserve culture in education is through ethnoscience-based learning, especially in chemical materials linked to various fields of science in life, including social and cultural. Ethnoscience is a process of reconstructing indigenous science knowledge with scientific science. This research aims to explore trends in ethnoscience-based chemistry learning in Indonesia and analyze the contents, focusing on topics, learning approaches and models, tools, and variables influenced. The research data collection method adopted the preferred items for systematic review and meta-analysis (PRISMA) design and obtained from 30 selected articles indicated from 2019-2024 published in journals indexed by Scopus and SINTA. Analysis results show that the process of making batik is one of the ethnoscience topics that are widely used in chemistry learning. Ethnoscience learning can also be done by combining local wisdom (culture), traditional foods, and natural phenomena of the environment. Ethnoscience learning can be integrated into various learning models, such as contextual teaching and learning (CTL), problem-based, and project-based learning (PjBL). Learning tools often used in ethnoscience-based chemistry learning are modules, evaluation instruments, and worksheets. Ethnoscience is interesting to learn because it positively affects critical thinking and creativity, cultural and conservation character, and scientific literacy.

Pelatihan Pengambangan Bahan Ajar Kimia Berbasis Blended Learning Menggunakan Media Pembelajaran Quizizz dan Mentimeter bagi Guru SMA di Kota Malang Pramesti, Indah Nur; Ciptawati, Endang; Nur, Hadi; Sumari, Sumari; Aldwinarta, Farrel Hafiz; Fauziah, Putri Nanda; Nareswari, Tsalis Jauza
Jurnal Pengabdian Masyarakat MIPA dan Pendidikan MIPA Vol. 7 No. 2 (2023): Vol 7, No 2 (2023)
Publisher : Yogyakarta State University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jpmmp.v7i2.58029

E-learning yang dipadukan dengan pembelajaran konvensional merupakan definisi blended learning dan merupakan salah satu metode pembelajaran yang sering diterapkan pasca pandemi Covid-19. Blended learning disertai dengan media pembelajaran yang menarik akan mampu meningkatkan hasil belajar siswa. Kegiatan layanan ini bertujuan untuk menarik guru agar terampil dalam menggunakan Quizizz dan Mentimeter, platform survei online dan presentasi interaktif. Hasil pelatihan menunjukkan respon positif dari peserta terhadap media pembelajaran yang direkomendasikan. Sebanyak 63% peserta menyatakan pelatihan ini sangat bermanfaat, 37% peserta menyatakan metode blended learning sangat efektif dilaksanakan pasca pandemi Covid-19, dan 56% peserta menyatakan penggunaan aplikasi media pembelajaran online Quizizz dan Mentimeter membantu dalam pelaksanaan blended learning.

Innovation in chemistry learning: enhancing learning quality through training on the implementation of project- and game-based learning for the chemistry MGMP in Sidoarjo Widarti, Hayuni Retno; Fauziah, Putri Nanda; Natasya, Shella; Sulistyorini, Dwi; Sumarsono, Raden Bambang; Setiawan, Nur Candra Eka; Minata, Zelen Surya; Rokhim, Deni Ainur
Journal of Saintech Transfer Vol. 7 No. 2 (2024): Journal of Saintech Transfer
Publisher : Talenta Publisher Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jst.v7i2.18813

Students often consider chemistry as a difficult subject to understand because that most teachers still use conventional teaching methods and lack of application of innovative learning media. Along with the times, a student-centered learning approach is one of the potential innovations that can be applied in learning chemistry, such as project- and game-based learning. This community service aims to enhance teachers' understanding and skills in implementing project-based learning and games in chemistry learning. The methods of this service are lectures and training. The subjects were 89 chemistry teachers from 40 high schools who are members of the Chemistry MGMP in Sidoarjo. The activities were carried out in the form of: (1) Socialization and sharing sessions on PjBL; (2) Socialization and sharing sessions on GBL; (3) Integration of project- and game-based learning in chemistry learning; (4) Demonstration of project- and game-based learning in chemistry learning; and (5) Sharing session on project-based teaching modules and games in chemistry learning. After participating in the activity, teachers' understanding increased by 35.37%. This activity produces outputs in the form of best practices and teaching modules.

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 UIN Walisongo

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

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

IMPLEMENTATION OF WORK PROGRAMS TO IMPROVE LITERACY AND NUMERACY COMPETENCIES STUDENT PARTICIPANTS: IMPLEMENTASI PROGRAM KERJA UNTUK MENINGKATKAN KOMPETENSI LITERASI DAN NUMERASI PESERTA DIDIK Fauziah, Putri Nanda; Tania, Andini Putri; Laila, Rizqi Nur; Ni'mah, Alfa Rohmatun; Zachri, Putri Utami; Sartika, Septi Budi
Journal of Social Comunity Services Vol. 1 No. 1 (2024): Journal of Social Comunity Services (JSCS)
Publisher : Antis-publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61796/jscs.v1i1.51

Kampus mengajar atau Kampus Mengajar (KM) merupakan salah satu bagian dari kegiatan belajar dan mengajar di satuan pendidikan dari program Merdeka Belajar Kampus Merdeka (MBKM) yang dicanangkan oleh Kementerian Pendidikan, Kebudayaan, Riset, dan Teknologi (Kemendikbudristek). Kemendikbud kembali meluncurkan Program Kampus Mengajar Angkatan 6 Tahun 2023, salah satu sekolah yang menjadi sasarannya adalah SMP PGRI 8 Sidoarjo. Penelitian ini menggunakan desain penelitian kualitatif dengan metode deskriptif. Program kerja yang dilakukan sesuai dengan fokus program Kampus Mengajar yaitu terkait literasi, numerasi, adaptasi teknologi, administrasi sekolah, dan Sustainable Development Goals (SDGs). Program kerja yang direncanakan telah berjalan sesuai dengan tujuan yang dicapai dan hasil AKM yang diperoleh juga mengalami peningkatan yang mengindikasikan adanya peningkatan kompetensi literasi dan numerasi siswa.

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