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All Journal Jambura Journal of Chemistry Jurnal Inovasi Pembelajaran Kimia (Journal Of Innovation in Chemistry Education) Arfak Chem: Chemistry Education Journal Jurnal Penelitian Hasil Hutan

Apriani Sulu Parubak

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Author-ID : 5381779

Agriculture, Biological Sciences & Forestry Humanities Chemistry Decision Sciences, Operations Research & Management Education Materials Science & Nanotechnology Social Sciences

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Articles

Unsur Kelumit Esensial (Mn Dan Zn) dalam Biji Kakao (Theobroma Cacao L.) dari Daerah Perkebunan Ransiki Papua Barat Sabir Sumarna; Yunita Pare Rombe; Murtihapsari Murtihapsari; Apriani Sulu Parubak; Christiana Niken Larasati; Putri Sarera Surbakti; Arniana Anwar
Jambura Journal of Chemistry Vol 4, No 2 (2022): August
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34312/jambchem.v4i2.14595

Cocoa is a rich source of essential minerals and contributes a significant amount of minerals in the human diet. Processed products from cocoa in the form of chocolate are in great demand by almost everyone from various statuses and social groups. The high consumption of chocolate is also not a fact that chocolate is beneficial to human health. The essential minerals (Mn and Zn) in cocoa beans are needed by the human body as a source of minerals, but if excess can be harmful to the body. The purpose of this study was to determine the content of essential trace elements in cocoa beans and their potential as raw materials for food products. The analysis method uses AAS (Atomic Absorption Spectrophotometry). The results showed the content of micronutrients (Mn and Zn) in cocoa beans at five location points with an average value of 0.8976 mg/100 g and 5.7534 mg/100 g.

PENGARUH MODEL PEMBELAJARAN KOOPERATIF TIPE MAKE A MATCH (MAM) TERHADAP HASIL BELAJAR KOGNITIF DAN MOTIVASI PESERTA DIDIK Saniatur Rohmah; Ni Made Dwi Widyastuti; Apriani Sulu Parubak; Christiana Niken Larasati
Arfak Chem: Chemistry Education Journal Vol 2, No 2 (2019): Arfak Chem
Publisher : Universitas Papua, Manokwari, Indonesia

AbstractThis study aims to determine whether there are differencas in cognitive dan motivation students’ learning out comes or to determine the percentage effect of using coooperative learing model Make A Match (MAM) X grade in SMK Negeri 2 Manokwari the study usen quasi exsperimental method. This study was conducted during three meetings, inckuding pretest before taeching the subject andthe postest after taching the subject. This research began on februari to may 2016. The sample of this study divided into two gruops they are 15 students in eksperimental class by using Make A Match (MAM) inadel and 15 students as a control class usinf conventional method.The instrument was used instrumen test. Based on analysis data, in uji deskriptif, uji normalitas , uji homogenitas and uji hypothesis Non-parametric test (Mann-Withney U-test). From Mann-Withney U-test in pretest, with significance level sig 0,025 obtained Asymp.Sig 0,916 and in posttest obtained Asymp.Sig 0,001. Keywords: Make A Match (MAM), student learning outcomes cognitive, Motivation, Elektrokimia

PENGARUH MODEL PEMBELAJARAN KOOPERATIF TIPE STUDENT TEAM ACHIEVEMENT DIVISION (STAD) BERBANTUAN MEDIA INTERNET TERHADAP HASIL BELAJAR KOGNITIF PESERTA DIDIK KELAS XI IPA SMA NEGERI 2 MANOKWARI PADA MATERI LARUTAN PENYANGGA Ade Rian; Yunita Pare Rombe; Apriani Sulu Parubak; Christiana Niken Larasati
Arfak Chem: Chemistry Education Journal Vol 2, No 2 (2019): Arfak Chem
Publisher : Universitas Papua, Manokwari, Indonesia

This study aims to determine: (i) the significant differences between the use of the STAD type cooperative learning model and the conventional learning model on students' cognitive achievement; (ii) measuring the percent effect of the two models carried out. This study uses a quasi-experimental design research method with a pretest posttest design. Mechanical sampling was done by purposive sampling. The instrument used to measure students' cognitive achievement is a multiple choice test. The data analysis used was descriptive and interferential analysis using SPSS 22 software. The results showed that there was no difference in cognitive learning outcomes in the Internet-Based Student Team Achievement Division (STAD) Cooperative Learning Model on Cognitive Learning Outcomes of students with this learning model. conventional.Keywords: STAD, Significant Difference, Cognitive, Percent Influence, Quasi Experiment

PERBANDINGAN MODEL PEMELAJARAN DAN AKTIVITAS BELAJAR TERHADAP HASIL BELAJAR KOGNITIF PESERTA DIDIK KELAS X IPA SMA NEGERI 2 MANOKWARI PADA MATERI SISTEM PERIODIK UNSUR Aprilia Diah Astuti; Christiana Niken Larasati; Apriani Sulu Parubak
Arfak Chem: Chemistry Education Journal Vol 2, No 2 (2019): Arfak Chem
Publisher : Universitas Papua, Manokwari, Indonesia

Abstract This study aims to determine: (i) significant differences between the use of the Problem Based Learning (PBL) learning model and the cooperative learning type Team Assisted Individualization (TAI) model on cognitive learning outcomes in periodic elements of material systems; (ii) the presence or absence of the influence of learning activities on periodic system elements; (iii) the interaction between learning models for cognitive learning activities and outcomes in periodic system elements. This research is an experimental study with a 2x2 factorial design. The population in this study were class X students of SMA Negeri 2 Manokwari Science and research samples used were students of class X IPA 1 and consisted of 36 students and students of class X IPA 2 consisting of 25 students. Based on statistical test data using analysis of variance with the help of SPSS 23, the significant value obtained for the learning model was 0.582> = 0.05, for learning activities 0.027 <= 0.05 and the interaction between learning models with learning activities on learning outcomes 0.669> = 0.05. The conclusions of this study are (i) There is no significant difference in the periodic system learning outcomes using the Problem Based Learning (PBL) and Team Assisted Individualization (TAI) learning models; (ii) There are significant differences in the learning activities of students in the elemental periodic system material for students who have active learning activities with inactive learning activities; (iii) There is no interaction between the learning model and learning activities on the periodic learning outcomes of elements. Keywords: Problem Based Learning (PBL) learning model, Team Assisted Individualization (TAI) learning model, learning activities, learning outcomes

Online Blended Learning Model to Improve Learning Independence and Learning Outcomes of High School Students Hendrik Karewangan; Apriani Sulu Parubak; Radite Yogaswara
Jurnal Inovasi Pembelajaran Kimia (Journal of Innovation in Chemistry Education) Vol. 7 No. 1 (2025): APRIL 2025
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jipk.v7i1.67604

The shift to online learning during the COVID-19 pandemic has challenged students’ ability to learn independently, highlighting the need for effective teaching models to support both autonomy and achievement. This study aims to evaluate the effectiveness of a blended learning model in improving learning independence and chemistry learning outcomes among XI-grade science students at SMA Zion. A classroom action research (CAR) design was employed over two cycles, each comprising planning, action, observation, and reflection phases. The intervention integrated synchronous (real-time online) and asynchronous (independent) learning activities. Thirty-four students participated. Learning independence was measured using a questionnaire, and learning outcomes were assessed through multiple-choice tests on hydrocarbon compounds. In Cycle I, students exhibited low learning independence (57.71%) and achievement (29.41% reached the minimum completion standard). Following targeted improvements such as learning journals, motivational strategies, and instructional videos in Cycle II, both indicators improved markedly: learning independence rose to 76.94%, and 82.35% of students met the minimum standard. The findings demonstrate that the blended learning model significantly enhances both learning independence and academic achievement, emphasizing the importance of innovative, adaptable pedagogical strategies in online education settings.

FLAVONOID DARI KULIT BATANG AKWAY (Drimys beccariana, Gibbs) DAN AKTIVITAS SITOTOKSIK TERHADAP SEL KANKER PAYUDARA T47D Tati Herlina; Apriani Sulu Parubak
Jurnal Penelitian Hasil Hutan Vol. 37 No. 2 (2019): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2019.37.2.59-66

Flavonoid compounds obtained from natural products could reduce the risk of cancer. Akway plants (Drimys beccariana, Gibbs) are endemic plants in the Papuan highlands, especially in Manokwari. D. beccariana has been widely used in traditional medicine in West Papua. This study aims to determine the cytotoxic activity of flavonoid from D. beccariana bark against T47D breast cancer cells. Pure compound form isolation was characterized using UV and IR spectrophotometers, and tested cytotoxic activity against T47D breast cancer cell using the Sulforodamine B. method. The D. beccariana stem bark (2.5 kg) was extracted with methanol solvent which was then partitioned with n-hexane and ethyl acetate solvents. Ethyl acetate fraction was separated and purified by column chromatography method to yield pure compound (7.1 mg). The UV-Vis spectrum of pure compound showed two bands at λmax 287 (I) and 205 nm (II), as well as the addition of AlCl3 shifting reagents with the addition of 7 and 5nm wavelengths, specific to the -OH and C=O groups in flavonoid compound. The infrared spectrum of pure compound (KBr) showed the presence of –OH stretch (3422 cm-1), C=O (1659 cm-1), C= C aryl (1463 cm-1), and C-O (1060 cm-1) which is typical for flavonoid. The pure flavonoid compound obtained from the of D. beccariana bark showed cytotoxic activity against T47D breast cancer cells with IC50 values of 3.2 µg/mL. D. beccariana is a promising source of breast anticancer agents.

Co-Authors Ade Rian Aprilia Diah Astuti Arniana Anwar Christiana Niken Larasati Hendrik Karewangan Murtihapsari Murtihapsari Ni Made Dwi Widyastuti Putri Sarera Surbakti Radite Yogaswara Sabir Sumarna Saniatur Rohmah Tati Herlina Yunita Pare Rombe Yunita Pare Rombe

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