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PROMOTING SUSTAINABILITY IN UNDERGRADUATE PROGRAM: STUDENTSâ€™ PERCEPTION IN GREEN CHEMISTRY COURSE Listyarini, Risnita Vicky
International Journal of Indonesian Education and Teaching (IJIET) Vol 3, No 1 (2019): January 2019
Publisher : Sanata Dharma University Yogyakarta

Global challenges such as climate change, decreasing natural resource and environmental pollution become major threats to global society now. Transformation toward sustainability should be promoted in practices. Universities and higher education (HE) plays an essential role in shaping the individual way of thinking and acting to become sustainability change-maker. This research aimed to study about studentsâ€™ perception towards implementation of Green Chemistry Course in undergraduate program of Chemistry Education Study Program, Sanata Dharma University. Through the implementation of green chemistry course, it is expected to promote sustainability to prospective teachers. Findings from this research indicated positive perception towards Green Chemistry Course in terms of studentsâ€™ awareness of environmental issues and implementation of principles of green chemistry in life.DOI: doi.org/10.24071/ijiet.2019.030107

KARAKTERISASI BIOPLASTIK DARI PEKTIN KULIT LABU KUNING (CUCURBITA MOSCHATA DURCH) Listyarini, Risnita Vicky; Susilawati, Puspita Ratna; Cahyaningrum, Rosalia; Tonapa, Nely
Hydrogen: Jurnal Kependidikan Kimia Vol 8, No 1 (2020): Hydrogen: Jurnal Kependidikan Kimia
Publisher : IKIP Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar

Pumpkin (Cucurbita moschata Durch) is one of the vegetable plants that are generally consumed as food. Pumpkin skin is a waste that has potential as a raw material for making bioplastics because it has pectin content. The characteristics of pectin that are gel become a reference in making bioplastics. Bioplastic synthesis consists of four steps, namely the making of pumpkin peel flour, pectin extraction, bioplastic synthesis, and bioplastic characterization. The experimental results show that pumpkin skin waste can be extracted with HCl solution and produce pectin in a ratio of0.1:10 grams (w/w). The results of FTIR spectra characterization showed that bioplastics included pectin which produced absorption of C = O carbonyl groups in 1645 - 1625 cm-1 and C-O stretch groups at 1101 - 1104 cm-1. Bioplastics produced have yellow characteristic. Pumpkin skin waste bioplastics are expected to be an alternative solution to the utilization of waste into products.

Karakterisasi Bioplastik dari Pektin Kulit Labu Kuning (Cucurbita moschata Durch) Listyarini, Risnita Vicky; Susilawati, Puspita Ratna; Cahyaningrum, Rosalia; Tonapa, Nely
Hydrogen: Jurnal Kependidikan Kimia Vol 8, No 1 (2020): Hydrogen: Jurnal Kependidikan Kimia
Publisher : Universitas Pendidikan Mandalika Mataram

Pumpkin (Cucurbita moschata Durch) is one of the vegetable plants that are generally consumed as food. Pumpkin skin is a waste that has potential as a raw material for making bioplastics because it has pectin content. The characteristics of pectin that are gel become a reference in making bioplastics. Bioplastic synthesis consists of four steps, namely the making of pumpkin peel flour, pectin extraction, bioplastic synthesis, and bioplastic characterization. The experimental results show that pumpkin skin waste can be extracted with HCl solution and produce pectin in a ratio of0.1:10 grams (w/w). The results of FTIR spectra characterization showed that bioplastics included pectin which produced absorption of C = O carbonyl groups in 1645 - 1625 cm-1 and C-O stretch groups at 1101 - 1104 cm-1. Bioplastics produced have yellow characteristic. Pumpkin skin waste bioplastics are expected to be an alternative solution to the utilization of waste into products.

ANALYSIS STUDENTSâ€™ SCIENCE PROCESS SKILLS IN SENIOR HIGH SCHOOL PRACTICUM BASED ON SMALL SCALE CHEMISTRY (SSC) Harta, Johnsen; Pamenang, Fransisca Ditawati Nur; Listyarini, Risnita Vicky; Wijayanti, Lucia Wiwid; Hapsari, Natalia Diyah; Ratri, Monica Cahyaning; Asy'ari, Maslichah; Lee, Wonkoo
Unnes Science Education Journal Vol 8 No 3 (2019): December 2019
Publisher : Department of Integrated Science, Faculty of Mathematics and Natural Sciences, Universitas Negeri Semarang in Collaboration with Perkumpulan Pendidikan IPA Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/usej.v8i3.31857

Experiment is integral part of chemistry. Through experiments, everyone can verify and or find something new as an alternative solution to attract interest in meaningful chemistry learning. Innovative experimental packaging can be done with Small Scale Chemistry (SSC) to establish the importance of understanding and application related to the use of small amounts of reagents and reduce waste produced during chemistry practicum. This study aims to explore and analyze the science process skills of the second semester students of Chemistry Education Study Program, Sanata Dharma University, which focused for chemistry grade 12 in water electrolysis using straws and mini test tubes as physical chemistryâ€™s experiment and formation reaction of silver mirror uses vial bottle and mirror media as experiment of organic chemistry. The results show that studentsâ€™ science process skills which includes observation skills with good average score, prediction skills with good enough average score, skills in interpreting data with good average scores, and communication skills with good average score for two kind of experiments conducted. In general, students were enthusiastic in carrying out the two SSC experiments. The students also evaluate the experiments to be able to help develop and improve their soft skills in chemistry learning. Keywords: science process skills, senior high school practicum, small scale chemistry

Guided-Inquiry of Green Chemistry-Based Experiments in Biodiesel Synthesis Risnita Vicky Listyarini; Fransisca Ditawati Nur Pamenang; Noer Kurnia Dewi
Scientiae Educatia: Jurnal Pendidikan Sains Vol 9, No 1 (2020): June 2020
Publisher : Tadris Biologi Fakultas Ilmu Tarbiyah dan Keguruan IAIN SYEKH NURJATI CIREBON

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24235/sc.educatia.v9i1.6283

The use of non-renewable energy sources such as fossil fuels is very contrary to the concept of sustainable development. The principles of green chemistry can be applied to laboratory work through experiments based on environmental issues such as energy. Biodiesel is an alternative fuel to replace fossil fuels which can be made through the process of transesterification of oils. This research aims to apply the principles of green chemistry in biodiesel synthesis experiments; designing and conducting thoughtful and efficient experiments; characterizing biodiesel products and knowing students' responses to green chemistry-based experiments in biodiesel synthesis. The results showed that the principles of green chemistry were successfully applied in the synthesis of biodiesel. Biodiesel products have a bright yellow colour, pH of 7, and density between 0.866-0.892 g/mL. Water contents range from 1.67-3.3, and acid numbers range from 0.69-4.3. 90/10 tests show the results between range 0.5-3% and kinematic viscosity from 4.195-4.995. Students showed a positive response of 75.36% in designing experimental procedures for greenchemistry-based biodiesel synthesis.

PROMOTING SUSTAINABILITY IN UNDERGRADUATE PROGRAM: STUDENTS’ PERCEPTION IN GREEN CHEMISTRY COURSE Risnita Vicky Listyarini
IJIET (International Journal of Indonesian Education and Teaching) Vol 3, No 1 (2019): January 2019
Publisher : Sanata Dharma University Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24071/ijiet.v3i1.1684

Global challenges such as climate change, decreasing natural resource and environmental pollution become major threats to global society now. Transformation toward sustainability should be promoted in practices. Universities and higher education (HE) plays an essential role in shaping the individual way of thinking and acting to become sustainability change-maker. This research aimed to study about students’ perception towards implementation of Green Chemistry Course in undergraduate program of Chemistry Education Study Program, Sanata Dharma University. Through the implementation of green chemistry course, it is expected to promote sustainability to prospective teachers. Findings from this research indicated positive perception towards Green Chemistry Course in terms of students’ awareness of environmental issues and implementation of principles of green chemistry in life.

Developing Small Scale Chemistry Practicum Module to Identify Students’ Ability in Predict-Observe- Explain (POE) Implementation Johnsen Harta; Risnita Vicky Listyarini; Fransisca Ditawati Nur Pamenang; Lucia Wiwid Wijayanti; Wonkoo Lee
JKPK (Jurnal Kimia dan Pendidikan Kimia) Vol 5, No 1 (2020): JKPK (Jurnal Kimia dan Pendidikan Kimia)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Sebelas Maret

Chemistry practicum does not have to be complicated and requires expensive apparatus and chemicals, and is considered not environmentally friendly. The concept of small scale chemistry practicum is one of appropriate technology that is packaged elegantly to introduce and embed the principles of green chemistry in every chemistry experiments, and also to enhance the concepts of chemistry through verification and scientific discovery. This study aims to create the newest product, the small scale chemistry practicum module to identify the ability of the students of chemistry education study program, Sanata Dharma University, Yogyakarta in formulating predictions on phenomenon based on the insights they have, making direct observations through small scale chemistry practicum, and explaining the results of observations and emphasis on concepts in detail and depth. This research is the development research with the model of Analysis, Design, Develop, Implement, and Evaluate (ADDIE). Data were analyzed by descriptive analysis and Rasch Model. The results of the study show that the product developed has a perfect and feasible level of readability to be tested. From the content aspect, it presented in perfect criteria, as well as the construction aspect and aspect of language, also shows good value. The students already have quite an excellent ability to predict (average score= 76), observe (average score= 88.5), and explain (average score 87.5). Also, it was noted that students enthusiastically applied POE, and the results of POE students show good person reliability value (0.88) in small scale chemistry experiments. The product developed has been valid, effective, and practical for use in experiments according to experts and teachers, and good student responses (Cronbach's alpha value= 0.92) to the product.

Pengaruh Jenis Larutan Pemasak Terhadap Kualitas Pulp Daun Pisang Risnita Vicky Listyarini; Noer Kurnia Dewi
Jurnal Kimia Fullerene Vol 6 No 1 (2021): Fullerene Journal of Chemistry
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37033/fjc.v6i1.247

The need for paper continues to increase, indicating that there is an alternative wood material that can be used as a base for making pulp. Materials that can be used are dried banana leaves which contain cellulose. The quality of the pulp can be obtained by the characteristics of the pulp produced. This study was conducted to determine the effect of the type of solvents on the pulp quality of banana leaves. The pulp has been made using delignification process with addition of 3% NaOH or 3% Na2CO3 3% and heating up to 120 minutes, at 105 Ã‚Â°C. Pulp quality was obtained from the results of pulp analysis, cellulose content, water content, physical appearances and qualitative analysis by FTIR. From the analysis of cellulose content, water content and FTIR instruments, pulp made with 3% NaOH solution are better suited to 3% Na2CO3 where the resulting pulp has a water content of 4.96%, a smooth and fibrous texture, a rich color, and produces a cellulose hydroxyl absorption band that is stronger than the pulp made of 3% Na2CO3. However, the pulp made from 3% NaOH solution has a lower yield (56.5%) and cellulose content (26.07%) than Na2CO3 3%. Dried banana leaves can be used as an alternative in pulp making. Keywords: pulp making; banana leaves; solvents

Implementation of Molecular Visualization Program for Chemistry Learning Risnita Vicky Listyarini
Prisma Sains : Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram Vol 9, No 1: June 2021
Publisher : IKIP Mataram

This study aims to investigate the implementation of molecular visualization programs for improving students’ understanding of concepts in chemical bonding. Chemistry learning in chemical bonding was conducted using molecular visualization program ACD/ChemSketch and Avogadro program. Several topics in chemical bonding include molecular geometry, polarity, bond angle, bond length, intermolecular forces and predicting boiling points. This study employs quasi-experimental research One Group Pretest – Posttest design. The subjects of this study were 46 students of undergraduate program in chemistry education department at Universitas Sanata Dharma. This study use test (pretest and pretest) and questionnaire to assess students’ perception of implementation of ACD/ChemSketch and Avogadro in chemistry learning. Implementation of ACD/ChemSketch and Avogadro in chemistry learning of chemical bonding gave an effect on students’ understanding based on paired t-test (sig < 0.05) and Kruskal-Wallis (sig < 0.05) test. The percentage of students is 45% with the medium N-gain category and 65% with the high N-gain category for ACD/ChemSketch program. It is 38.46% with the medium N-gain category and 61.54% with the high N-gain category for Avogadro program. Students show positive response to the implementation of ACD/ChemSketch and Avogadro program regarding their understanding, motivation and prospective skill for becoming teachers. Molecular visualization program helps the students to understand the chemical bonding topic.

Test Instrument to Measure Student’s Level of Chemical Literacy in Macromolecules Topic Oktrilina Amelia; Risnita Vicky Listyarini
Jurnal Pendidikan Indonesia Vol 11 No 3 (2022): September
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

The science literacy level of students can be determined using a measuring instrument, namely a test instrument that includes four aspects of chemical literacy in each item. This study aims to develop a test instrument that is used to measure the achievement of a student's chemical literacy level. The research method used is the Model of Educational Reconstruction (MER). The limited trial of the test instrument was implemented for twelve students in the senior high schools. Data collection was carried out based on validation sheets of test instruments from expert validation, pretest and posttest. Data analysis for the test instrument is based on validation of the test instrument using Aiken’s V formula. Based on the correlation coefficient analysis of the test instrument resulted in 20 valid question items with a correlation coefficient value of 30.8% having moderate validity criteria, 7.7% having high criteria and 12.8% having very high criteria. The reliability test shows that the test instrument is reliable and has a high correlation with the Cronbach Alpha value of of 0.920. The difficulty level of the question and the discriminatory of the question were determined. The results of the student response questionnaire to the test instrument have an average percentage of 79% with practical criteria. This research concludes that the test instruments can be used to measure the level of chemical literacy of students. The chemical literacy level of students at the low level and the nominal level of scientific literacy is the highest level the students can achieve.

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