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All Journal JURNAL KIMIA SAINS DAN APLIKASI Jurnal Pendidikan Indonesia Scientiae Educatia: Jurnal Pendidikan Sains IJIET (International Journal of Indonesian Education and Teaching) Unnes Science Education Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Pendidikan Kimia (JPKim) JKPK (Jurnal Kimia dan Pendidikan Kimia) Fullerene Journal of Chemistry Hydrogen: Jurnal Kependidikan Kimia Hydrogen: Jurnal Kependidikan Kimia Prisma Sains: Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram Jurnal Pendidikan Sains Indonesia (Indonesian Journal of Science Education)
Risnita Vicky Listyarini
Universitas Sanata Dharma
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Materials Science & Nanotechnology Mathematics Physics Other

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Development of Universal Indicator from Organic Waste Material Maria Bestanika Nugrahani; Risnita Vicky Listyarini
Jurnal Penelitian Pendidikan IPA Vol 9 No 4 (2023): April
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i4.1567

Abstract

This research aims the development of universal indicators from organic waste materials. This is a research and development (R&D) with a modified ADDIE model. The universal indicator developed was implemented for students of class XI MIPA at Senior High School in Bantul, Yogyakarta. The data collection methods used are interviews, product validation sheets, observations, tests, and questionnaires. The results showed that the universal indicator can determine a pH value of 0-14 and can be stored for 11 days. The product developed has met valid criteria with an average percentage obtained of 94.20% based on validators evaluation. The product developed has met effective criteria with an average percentage obtained of 95.00% based on students’ science skills and 75.00% based on student learning outcomes and practical criteria with an average percentage obtained of 87.40%.
Bioplastic from Pectin of Dragon Fruit (Hylocereus polyrhizus) Peel Risnita Vicky Listyarini; Puspita Ratna Susilawati; Esther Natalia Nukung; Maria Anastasia Toyo Yua
Jurnal Kimia Sains dan Aplikasi Vol 23, No 6 (2020): Volume 23 Issue 6 Year 2020
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2388.388 KB) | DOI: 10.14710/jksa.23.6.203-208

Abstract

Plastic derived from petroleum is challenging to degrade and pollute the environment. There are alternatives to making biodegradable plastics to reduce the adverse effects of plastics on the environment. This study aims to utilize dragon fruit peel waste as a material for making bioplastic. Plastic characterization was carried out by FTIR analysis to determine the functional groups contained in bioplastics. The results showed that dragon fruit peel could be extracted by HCl solution, and the pectin yield is 11%. Extracted pectin was used to make bioplastics with and without the addition of ethylene glycol. The results showed that moisture content of bioplastics of dragon fruit peel pectin is 5.71–12%, while dragon fruit peel pectin and ethylene glycol are 2.86–5.71%. FT-IR spectra showed that the bioplastics from dragon fruit peels belong to the pectin group, which produces carbonyl absorption at 1636–1628 cm-1 and stretching C-O stretch at 1098–1101 cm‑1.
Development of Green Chemistry-Based Practicum Module for Senior High School to Promote Students’ Environmental Literacy Noer Kurnia Dewi; Risnita Vicky Listyarini*
Jurnal Pendidikan Sains Indonesia Vol 10, No 3 (2022): JULY 2022
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (161.698 KB) | DOI: 10.24815/jpsi.v10i3.25163

Abstract

Chemistry learning ideally should invite students to interact directly with the object being studied. This can be realized through a practicum in the laboratory. However, chemistry practicum still generates significant waste in the environment. There is also a need for character education to promote environmental literacy. Therefore, there is a need for a green chemistry-based practicum module for class X senior high school. This research aims to develop a green chemistry-based practicum module, to know the quality of a green chemistry-based practicum module, and to know the students' responses to environmental literacy. This a research and development using a modified Borg and Gall development model that includes information gathering, planning, product development, limited trial, and product revisions. The results of the validity of the green chemistry-based practicum module in terms of material had a percentage of 93.45% and in terms of media had a percentage of 90.00% with a very valid criterion. The use of the green chemistry-based practicum module gets a very practical criterion with a score of 86.67% based on students’ responses. The green chemistry-based practicum module effectively increases students’ learning outcomes which are marked by the n-gain value of 0.3 - 0.78 in the medium to high criteria. The value of tcount ttable and sig.(2-tailed) in three practicums 0.05 indicates that the green chemistry-based practicum module can support students' environmental literacy
Development of Universal Indicator from Organic Waste Material Maria Bestanika Nugrahani; Risnita Vicky Listyarini
Jurnal Penelitian Pendidikan IPA Vol. 9 No. 4 (2023): April
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i4.1567

Abstract

This research aims the development of universal indicators from organic waste materials. This is a research and development (R&D) with a modified ADDIE model. The universal indicator developed was implemented for students of class XI MIPA at Senior High School in Bantul, Yogyakarta. The data collection methods used are interviews, product validation sheets, observations, tests, and questionnaires. The results showed that the universal indicator can determine a pH value of 0-14 and can be stored for 11 days. The product developed has met valid criteria with an average percentage obtained of 94.20% based on validators evaluation. The product developed has met effective criteria with an average percentage obtained of 95.00% based on students’ science skills and 75.00% based on student learning outcomes and practical criteria with an average percentage obtained of 87.40%.
The Acalypha siamensis leaf as natural dye in eco-print Hapsari, Natalia Diyah; Listyarini, Risnita Vicky; Handoyo, Luisa Diana; Feroniasanti, Yoanni Maria Lauda; Hapsari, Intan Putri; Tan, Andreas Felix; Darmanto, Elsie Gracia Putri; Abuk, Agnes Selfiana Irma; Fitriani, Helena; Krista, Brigitta Della Ocha
Jurnal Pendidikan Kimia Vol. 16 No. 3 (2024): J. Pendidik. Kim : December 2024
Publisher : Pascasarjana Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jpkim.v16i3.65167

Abstract

The use of synthetic dyes in the textile industry has a negative impact on the environment. Therefore, it is necessary to explore natural dyes that are more environmentally friendly. The aim of this research is to find natural dyes from Acalypha siamensis leaves. In this research, compounds contained in A. siamensis extract were identified using FT-IR and GC-MS instruments, then simulations were carried out of the reactions that occurred between cinnamaldehyde (E), cellulose in cotton, and alum mordant using quantum chemistry software. ORCA 5.0.2 and Visual Molecular Dynamics (VMD). The cinnamaldehyde compound is the main constituent compound in A. siamensis leaf extract. Based on the simulation results: the reaction between cinnamaldehyde (E), cellulose in cotton fabric, and alum mordant is energetically favorable. The reaction simulation results are in line with experimental research, the reaction of cellulose in cotton fabric, alum mordant, and cinnamaldehyde produces a brownish green color. A. siamensis leaves have potential as a dye in eco-prints.
Co-Authors Abuk, Agnes Selfiana Irma Asy'ari, Maslichah Cahyaningrum, Rosalia Darmanto, Elsie Gracia Putri Esther Natalia Nukung Feroniasanti, Yoanni Maria Lauda Fitriani, Helena Fransisca Ditawati Nur Pamenang Hapsari, Intan Putri Johnsen Harta Krista, Brigitta Della Ocha Lee, Wonkoo Lucia Wiwid Wijayanti Luisa Diana Handoyo Maria Anastasia Toyo Yua Maria Bestanika Nugrahani Monica Cahyaning Ratri Natalia Diyah Hapsari Noer Kurnia Dewi Noer Kurnia Dewi Oktrilina Amelia Puspita Ratna Susilawati Tan, Andreas Felix Tonapa, Nely Wonkoo Lee