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All Journal BERKALA SAINSTEK Jurnal Inovasi Pendidikan Kimia Indonesian Journal of Biotechnology PROSIDING SEMINAR KIMIA Jurnal Penelitian Pendidikan Kimia Orbital: Jurnal Pendidikan Kimia CARADDE: Jurnal Pengabdian Kepada Masyarakat Jambura Journal of Educational Chemistry International Journal of Active Learning SAP (Susunan Artikel Pendidikan) Bivalen: Chemical Studies Journal Hydrogen: Jurnal Kependidikan Kimia Carmin: Journal of Community Service Educational Studies: Conference Series
Pintaka Kusumaningtyas
Program Studi Magister Pendidikan Kimia, Universitas Mulawarman
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Immunology & microbiology Materials Science & Nanotechnology Mathematics Physics Social Sciences Other

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Journal : PROSIDING SEMINAR KIMIA

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EKSTRAKSI DAN PENGERINGAN POLISAKARIDA DARI JAMUR MERANG SAWIT VOLVARIELLA VOLVACEAE Purwita, Rahmadina; Kusumaningtyas, Pintaka; Susanti, Revi; Anjarwati, Dewi; Febriyanti, Shinta; Romadhan G.F.F, Alfiqi Gilang Nur
PROSIDING SEMINAR KIMIA Vol 3 No 1 (2024): Prosiding SNK 2024
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

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Abstract

Polysaccharides are the main component in edible mushrooms and have an important role in food and medicine. Polysaccharide extraction methods and drying of mushroom simplicia are very important to obtain high polysaccharide soaks. The aim of this research was to determine the effect of adding pressure and alkali on the results of polysaccharide soaking extracted using the hot water extraction method, and the effect of different drying methods (food dehydrator and freeze drying) on the results of polysaccharide soaking. Stages in the research include: (1) collecting palm fungal biomass that grows on empty oil palm bunches, (2) preparing mushroom powder, (3) drying palm fungus biomass using a food dehydrator at a temperature of 70oC, (4) extracting dry palm fungus biomass using hot water, pressurized hot water and alkali, (5) determination of polysaccharide soak. The research results showed that the hot water extraction method without applying pressure gave a soaking yield of 3.85%, while with applying pressure the soaking yield was 8.29%. Re-extraction with the addition of alkaline solvent was able to increase the yield of polysaccharide soak by 5.08%. The research results also showed that the drying method influenced the results of the polysaccharide soak obtained. Drying with a food dehydrator was able to obtain higher soaking results (13.37%) compared to freeze drying (6.02%). Thus, it can be concluded that the oil palm mushroom simplicia which is dried with a food dehydrator and extracted using the hot water extraction method with pressure and alkali is able to increase the highest yield of polysaccharide soak. Keywords: hot water extraction, food dehydrator, freeze drying
IMPLEMENTASI PBL-STEAM TERINTEGRASI ETNOSAINS UNTUK MELATIH BERPIKIR KREATIF PADA MATERI ASAM BASA Hazlina, Nur; Erika, Farah; Kusumaningtyas, Pintaka
PROSIDING SEMINAR KIMIA Vol 3 No 2 (2025): Prosiding SNKT 2024
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

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This research aims to determine the implementation of integrated PBL-STEAM ethno-science to train the creative thinking skills of eleventh-grade students at SMA Negeri 4 Samarinda on the topic of acids and bases, specifically the theory and indicators of acids and bases. This study employs a Quasi-Experimental design with a Posttest Only Control Design type. The population in this research consists of all eleventh-grade students at SMA Negeri 4 Samarinda for the academic year 2023/2024. Sampling was conducted using cluster random sampling techniques. The instrument used to measure students' creative thinking is a post-test questionnaire. Data analysis was performed using a t-test, which yielded a significance (2-tailed) of 0,017 < 0,050 for both classes, indicating that Ha is accepted, with the statement that there is an implementation of integrated PBL-STEAM ethno-science on students' creative thinking skills regarding the topic of acids and bases, specifically the theory and indicators of acids and bases. Keywords : PBL-STEAM, Ethnoscience, Creative Thinking
Co-Authors Abdul Majid Ade Mardiana Damayanti Adelfia Sallo&#039; Padidi Anggun Noor Kurnia Sari Anjarwati, Dewi Dewi Nurrochmah Dhani Suryawan Dhani Suryawan, Dhani Djoa, Dominikus Djago Egi Syahrah Anggraeni Endang Astuti Farah Erika Gultom, Sihol Dwijaya Hazlina, Nur Irfan Dwidya Prijambada Iya’ Setyasih JAKA WIDADA Lestari Lestari Lestari Lestari Lisa Aprilia Maria Emilia Inda Marselina Dau Mery Fazria Setya Rahayu Muhammad Nashir Mukhamad Nurhadi, Mukhamad Nadila Islamika Nezalsa Fortuna Nova Sukmawati Muskita Nur Apriani Nur Hamid Nur Syamsiyah Nurlaili, Nurlaili Purwita, Rahmadina Ramaulvi Muhammad Akhyar Rengganis, Ajeng Ayu Rezky Oktafiani Risky Nor Cahyo Rismawati Rismawati Romadhan G.F.F, Alfiqi Gilang Nur Sasmitha, Hijrana Mega Sekar Sulistyaningwarni Shalsabila, Syifa Yulia Shinta Febriyanti, Shinta Siti Maimunah Suci Fitriani Sukemi Sukemi Sumarioto, Sumarioto SUMARNI Susanti, Revi Uci Dania Usman, U. Vivi Monica Ramadhani Wuri Utami Dea Sismawarni Yuni Mulyana Yusvitasari, Runita Eka