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Peningkatan Kadar Protein Pada Kulit Umbi Singkong (Manihot esculenta Crantz Sin M. Utilissima Pohl) Melalui Proses Fermentasi Parlindungan, John Yoro; Andari, Gardis
AGRICOLA Vol 11 No 1 (2021): AGRICOLA
Publisher : Universitas Musamus, Merauke, Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35724/ag.v11i1.3592

Research has been conducted on increasing protein levels in cassava skin through the fermentation process. Cassava skin is an organic waste that if not handled well feared can cause environmental pollution. The purpose of the research to reduce waste, also make use of cassava skin to have a value. The phase of the research is the waste of cassava skin cleaned from the skin of Ari then washed and diced with a length of Â± 1 cm. After that analyzed pH, moisture content, and protein content using micro method Kjehdhal. From the results of the analysis, obtained fermentation data is done with pH 6 and water content of 81.6%. Protein levels of fermentation from day 2 to 7th day. Obtained using microanalysis Kjehdhal participated 1.52%; 2.27%; 6.93%; 7.62%; 3.79%; 0.57%. From this research can be concluded that the fermentation of cassava skin can increase protein levels and can be used as feed additives.

Pelatihan Penggunaan Canva For Education di SMAS YPK Merauke Henukh, Anderias; Riwu, Lay; Parlindungan, John Yoro
Samakta: Jurnal Pengabdian Kepada Masyarakat Vol. 1 No. 2 (2024): Samakta: Jurnal Pengabdian Kepada Masyarakat
Publisher : CV. Dharma Samakta Edukhatulistiwa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61142/samakta.v1i2.125

Pelatihan penggunaan canva for education sebagai media pembelajaran merupakan suatu upaya untuk membekali para guru dalam melaksanakan pembelajaran tatap muka dan atau blended learning secara efisien. Namun sesuai dengan analisis situasi ditemukan bahwa belum memadainya kemampuan guru dalam menggunakan teknologi pendidikan dalam pembelajaran, khususnya menggunakan canva for education sebagai media pembelajaran. Selain itu, belum ada pelatihan khusus terkait pembelajaran menggunakan teknologi, dan pengetahuan dan keterampilan yang cukup mengenai canva for education yang dapat menarik minat dan motivasi siswa-siswi juga masih minim. Kegiatan ini dilaksanakan di SMAS YPK Merauke dengan 14 orang guru sebagai peserta. Metode pelaksanaan dibagi dalam tiga bagian utama, yaitu: sosialisasi, pendidikan dan pelatihan, pendampingan, evaluasi produk kegiatan. Hasil pelaksanaan kegiatan pengabdian menunjukkan peserta sudah memiliki kemampuan yang baik setelah mengikuti kegiatan. Selain itu juga peserta mulai mampu membuat sertifikat, modul pembelajaran, maupun media animasi dan PPT dan menggunakannya dalam kegiatan pembelajaran.

Development of Merdeka Curriculum Teaching Modules focused on Green Chemistry Materials Setyowati, Giyarsih; Siregar, Lamtiar Ferawaty; Pongkendek, Jesi Jecsen; Parlindungan, John Yoro
Integrated Science Education Journal Vol 5 No 3 (2024): September
Publisher : Cahaya Ilmu Cendekia Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37251/isej.v5i3.1885

Purpose of the study: To find out the procedure for developing Merdeka Curriculum teaching modules on green chemistry material and producing products in the form of teaching modules on green chemistry material that are valid and practical. Methodology: This type of research is R&D using the 4D model, but in this study, it only reached the 3D stage, namely Define, Design, and Develop. The subjects of this study were 2 people validating the teaching module, 5 teachers responding, and 34 students of class X/Phase E of Senior High Scool 2 Merauke. The instruments used in data collection were interviews, questionnaires, and validation. Main Findings: The results of this study indicate that the Merdeka curriculum teaching module on green chemistry material from the product validation assessment is 95% with a very valid category. Reviewed from the practicality aspect, it can be seen from the teacher response assessment of 92% with a very practical category. Based on the results of the study, the Merdeka curriculum teaching module on green chemistry material is declared valid and practical to use. Novelty/Originality of this study: The teaching modules that are compiled are integrated with student abilities, facilities and infrastructure of Phase E at Senior High Scool 2 Merauke, assessments, materials are integrated with the local context. The teaching modules that are compiled are adjusted to the students' learning styles and have been validated by the validator.

The Effect of the POE Learning Model on Students' Cognitive Learning Outcome Noviyanti, Mila Anggita; Rettob, Abraham Laurens; Parlindungan, John Yoro; Siregar, Lamtiar Ferawaty; Sumanik, Novike Bela; Asmaningrum, Henie Poerwandar
Tekno - Pedagogi : Jurnal Teknologi Pendidikan Vol. 15 No. 1 (2025): Tekno-Pedagogi
Publisher : Program Magister Teknologi Pendidikan Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/teknopedagogi.v15i1.47925

This study investigates the effectiveness of the POE learning model in enhancing cognitive learning outcomes of chemistry education students, with particular emphasis on redox reaction concepts in the Basic Chemistry 2 course. The research is motivated by the persistent challenge that chemistry is perceived as abstract and calculation-intensive, which hinders students’ conceptual understanding and reduces academic achievement. Employing a pre-experimental one-group pre-test – post-test design, data were collected from 12 second-semester students at Musamus University. Validated essay-based instruments were used to measure learning outcomes, and data analysis included N-Gain testing, Shapiro–Wilk normality testing, and paired sample t-tests. Results revealed a significant improvement in students’ performance, with mean scores rising from 19.4 (pre-test) to 74.6 (post-test), an N-Gain score of 0.67 categorized as moderate, and a t-count of 9.360 exceeding the t-table value of 2.22. The novelty of this research lies in the contextual application of the POE model under pandemic-induced learning constraints, demonstrating that active learning strategies integrating prediction, observation, and explanation are effective even within limited instructional settings. The contribution of this study is twofold: theoretically, it reinforces constructivist approaches in chemistry education by providing empirical evidence of POE’s impact on cognitive outcomes; practically, it offers lecturers a viable pedagogical alternative to foster motivation, engagement, and deeper understanding of abstract chemical concepts. These findings underscore the potential of POE as a scalable instructional strategy to address learning challenges in higher education science contexts.

Pelatihan E-Assessment Berbasis Gamifacation Menggunakan aplikasi Quizizz Di SMAS YPK Merauke Henukh, Anderias; Riwu, Lay; Parlindungan, John Yoro; Simbolon, Mert
Innovation for Community Service Journal Vol 1 No 1 (2023): April 2023
Publisher : Department of Chemistry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/icsj.v1i1.8484

Berdasarkan hasil wawancara dengan kepala sekolah dan survei terhadap guru-guru SMAS YPK Merauke diperoleh data bahwa selama masa covid-19 pembelajaran daring belum bisa dilakukan dengan baik karena belum memadainya penguasaan teknologi pembelajaran oleh guru-guru maupun siswa-siswi sehingga perlu dilakukan pelatihan penggunaan teknologi pembelajaran. Sasaran dari pengabdian ini adalah guru-guru. Metode yang digunakan dalam pengabdian ini adalah pelatihan terstruktur dan pendampingan terhadap guru-guru. Hasil pengabdian menunjukkan bahwa kemampuan menggunakan teknologi dalam pembelajaran khususnya pembelajaran dalam kelas virtual melalui Google Classroom berada pada kategori baik setelah diberikan pelatihan. Selain itu kemampuan menggunakan teknologi dalam pembuatan soal maupun ujian secara online melalui Quizizz berada pada kategori baik setelah diberikan pelatihan.

ANALISIS KUALITAS HAND SANITIZER DARI KOMBINASI VIRGIN COCONUT OIL (VCO) SEBAGAI PELEMBUT DAN ANTIBAKTERI DENGAN CAMPURAN ETANOL Hitijahubessy, Hendro; Parlindungan, John Yoro
Biofaal Journal Vol 2 No 2 (2021): Biofaal Journal
Publisher : Pattimura University

Era pandemi Covid-19 dalam kehidupan masyarakat sangat dibutuhkan pelindung diri yang dapat menangkal virus korona, salah satu pelindung diri yang digunakan saat ini adalah hand sanitizer. Penelitian ini akan dibuat hand sanitizer dengan kombinasi Virgin Coconut Oil (VCO) dengan alkohol. Fungsi kedua bahan ini sebagai antibakteri memungkinkan paduan kedua bahan ini sangat efektif untuk dikombinasikan menjadi produk hand sanitizer. Metode pengujian yang dilakukan dalam penelitian ini adalah uji organoleptic dan uji zona bening untuk mengetahu kualitas dari hand sanitizer. Hasil penelitian yang diperoleh melalui uji organoleptik dan uji zona bening dapat disimpulkan bahwa hand sanitizer yang terbaik berada pada konsentrasi VCO 25% karena sifat lembut di area telapak tangan dan kemampuan zona hambat yang sangat kuat terhadap bakteri yang berasal dari tangan manusia sebesar 20,05 mm. Pemanfaatan kelapa sebagai tanaman pesisir untuk dijadikan VCO dan bahan dasar pembuat hand sanitizer maka diharapkan dapat digunakan dengan mudah oleh masyarakat.

Characterization of Clay from Merauke Regency and Its Utilization as an Adsorbent of Free Fatty Acids in the Purification of Waste Cooking Oil Maulana, Muhammad Rasyiid; Parlindungan, John Yoro; Rettob, Abraham Laurens; Siregar, Lamtiar Ferawaty; Hitijahubessy, Hendro
Jurnal Kimia Fullerene Vol 10 No 2 (2025): 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.v10i2.747

This study investigates the characterization and application of natural clay from Merauke as an adsorbent for the purification of waste cooking oil. The clay was characterized using X-ray Diffraction (XRD) and Scanning Electron Microscopy (SEM) before and after acid activation. XRD analysis revealed quartz as the dominant mineral, while acid activation caused partial dissolution of layered silicates, leading to structural modifications without affecting quartz stability. SEM images confirmed morphological changes from compact aggregates with limited pores to rougher surfaces with larger and more interconnected pores, indicating increased surface area and porosity. Adsorption experiments demonstrated that both natural and acid-activated clays reduced free fatty acids (FFA) in waste cooking oil, with the acid-activated clay consistently showing higher efficiency. Prolonged stirring times (1, 3, and 5 hours) further enhanced adsorption, though the reduction rate decreased over time as adsorption sites approached saturation. In addition to lowering FFA levels, the treatment improved the visual quality of the oil by reducing discoloration. These findings highlight that acid-activated clay from Merauke possesses promising potential as a low-cost and effective adsorbent for oil purification and broader environmental remediation applications.

Pemanfaatan Cangkang Telur Terenkapsulasi sebagai Adsorben: Karakterisasi dan Studi Kinetika Adsorpsi Metilen Biru Parlindungan, John Yoro; Rusnadi; Siregar, Lamtiar Ferawaty; Pongkendek, Jesi Jecsen
Jurnal Teknik Kimia USU Vol. 15 No. 1 (2026): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jtk.v15i1.22507

The utilization of eggshell powder as an adsorbent presents certain limitations, particularly in terms of post-adsorption separation and the potential for clogging in column applications. To address these challenges, encapsulation was employed as a modification technique, wherein the eggshell powder was immobilized within a calcium alginate matrix to form a stable adsorbent structure. This study investigated the adsorption kinetics of methylene blue (MB) using three types of adsorbents: calcium alginate (CA), encapsulated eggshell powder (CA–SCKT), and unencapsulated eggshell powder (SCKT). Kinetic analysis was conducted using pseudo-first-order and pseudo-second-order models. The results indicated that the adsorption process for all adsorbents followed the pseudo-second-order kinetic model, as evidenced by higher correlation coefficient (R²) values.

Pemanfaatan Cangkang Telur Terenkapsulasi sebagai Adsorben: Karakterisasi dan Studi Kinetika Adsorpsi Metilen Biru Parlindungan, John Yoro; Rusnadi; Siregar, Lamtiar Ferawaty; Pongkendek, Jesi Jecsen
Jurnal Teknik Kimia USU Vol. 15 No. 1 (2026): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jtk.v15i1.22507

The utilization of eggshell powder as an adsorbent presents certain limitations, particularly in terms of post-adsorption separation and the potential for clogging in column applications. To address these challenges, encapsulation was employed as a modification technique, wherein the eggshell powder was immobilized within a calcium alginate matrix to form a stable adsorbent structure. This study investigated the adsorption kinetics of methylene blue (MB) using three types of adsorbents: calcium alginate (CA), encapsulated eggshell powder (CA–SCKT), and unencapsulated eggshell powder (SCKT). Kinetic analysis was conducted using pseudo-first-order and pseudo-second-order models. The results indicated that the adsorption process for all adsorbents followed the pseudo-second-order kinetic model, as evidenced by higher correlation coefficient (R²) values.

Development of Merdeka Curriculum Teaching Modules focused on Green Chemistry Materials Setyowati, Giyarsih; Siregar, Lamtiar Ferawaty; Pongkendek, Jesi Jecsen; Parlindungan, John Yoro
Integrated Science Education Journal Vol 5 No 3 (2024): September
Publisher : Cahaya Ilmu Cendekia Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37251/isej.v5i3.1885

Purpose of the study: To find out the procedure for developing Merdeka Curriculum teaching modules on green chemistry material and producing products in the form of teaching modules on green chemistry material that are valid and practical. Methodology: This type of research is R&D using the 4D model, but in this study, it only reached the 3D stage, namely Define, Design, and Develop. The subjects of this study were 2 people validating the teaching module, 5 teachers responding, and 34 students of class X/Phase E of Senior High Scool 2 Merauke. The instruments used in data collection were interviews, questionnaires, and validation. Main Findings: The results of this study indicate that the Merdeka curriculum teaching module on green chemistry material from the product validation assessment is 95% with a very valid category. Reviewed from the practicality aspect, it can be seen from the teacher response assessment of 92% with a very practical category. Based on the results of the study, the Merdeka curriculum teaching module on green chemistry material is declared valid and practical to use. Novelty/Originality of this study: The teaching modules that are compiled are integrated with student abilities, facilities and infrastructure of Phase E at Senior High Scool 2 Merauke, assessments, materials are integrated with the local context. The teaching modules that are compiled are adjusted to the students' learning styles and have been validated by the validator.

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