Article Per Year (5 Year)
p-Index From 2020 - 2025
1.556
P-Index
This Author published in this journals
All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) Chemistry Indonesian Journal of Chemical Research Jurnal Pengabdian Magister Pendidikan IPA Fullerene Journal of Chemistry Molluca Journal of Chemistry Education (MJoCE) Innovation for Community Service Journal
Latupeirissa, Jolantje
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Engineering Environmental Science Materials Science & Nanotechnology Physics Social Sciences Other

Published : 20 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 20 Documents
Search

 1   2 
Biosorpsi Ion Logam Tembaga (Cu2+) Pada Biosorben Rumput Laut Coklat (Padina australis) Bijang, Catherina M.; Latupeirissa, Jolantje; Ratuhanrasa, Marike
Indonesian Journal of Chemical Research Vol 6 No 1 (2018): Edisi Bulan Juli (Edition For July)
Publisher : Jurusan Kimia, Fakultas Sains dan Teknologi, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ijcr.2018.6-cat

Abstract

The research on the biosorption of Cu2+ metal ions in brown seaweed biosorbent (Padina australis) has been done. This study aims to determine moisture content, ash content, biomass content, pH and optimum contact time of Cu2+ metal ions absorption pH and optimum contact time of Cu2+ metal ions absorption. The method used is batch method. The adsorption result of Cu2+ metal ions was analyzed by using atomic absorption spectrophotometer (AAS). The results showed that the optimum pH was 7 with 99.8308 % absorption ability of biosorbent and the optimum contact time was 5 hours with 99.5570 % biosorbent absorbency.
Ekstraksi Dan Karakterisasi Pektin Kulit Jeruk Manis Kisar (Citrus sp.) Latupeirissa, Jolantje; Fransina, Eirene G.; Tanasale, Matheis F.J.D.P.
Indonesian Journal of Chemical Research Vol 7 No 1 (2019): Edisi Bulan Juli (Edition For July)
Publisher : Jurusan Kimia, Fakultas Sains dan Teknologi, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ijcr.2019.7-egf

Abstract

Extraction and characterization of pectin from the oranges peel of kisar (Citrus sp.) have been done. Pectin was obtained from extraction oranges peel crust of kisar with HCl at temperature 90 °C during 4 hours. The content of albido and pectin are 69.17% and 82.82%, respectively. Identification functional group of pectin was using by FTIR spectrophotometer which OH-alcohol (3294.42–3373.50 cm-1), CH3-alifatic (2939.52 cm-1), C=O ester (1741.72–1730.15 cm-1), C=C alkene (1614.42–1643.35 cm-1), and C-O eter (1232.51–1276.88 cm-1). Characterizations of pectin were equivalent weight (2011.6 mg), methoxyl content (1.17%), galacturonic level (41.64%), moisture content (28.46%), ash content (11.92%), and degree of esterification (15.95%).
The Ouw Natural Clay Impregnation Using Titanium Dioxide as a Rhodamine B Dyestuff Degrader Bijang, Catherina M.; Nurdin, M.; Latupeirissa, Jolantje; Aziz, Thamrin; Talapessy, Firda
Indonesian Journal of Chemical Research Vol 9 No 3 (2022): Edition for January 2022
Publisher : Jurusan Kimia, Fakultas Sains dan Teknologi, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598//ijcr.2022.9-cat

Abstract

This study aims to determine the effect of calcination temperature on Titanium dioxide impregnated Ouw Natural Clay (LAO) on the degradation of Rhodamine B dye. The calcination temperature used was 200, 300, and 400 °C. Their radiation was carried out with 3x8 watt UV lamps and sunlight. The degradation percentage of Rhodamine B dye produced by LAO-TiO2 calcined at a temperature of 200, 300, and 400 °C with sunlight were 98.80%, 98.87%, and 96.07%, respectively. The degradation percentage of Rhodamine B dye produced by LAO-TiO2 calcined at temperatures of 200, 300, and 400 °C with the help of UV light were 96.01%, 97.41 %, and 97.18%, respectively.
Synthesis and Characterization of Chitosan-Citrate Microparticle Using Ionic Gelation Methods Latupeirissa, Jolantje; Tanasale, Matheis F. J. D. P.; Fransina, Eirene Grace; Noya, Alesya
Indonesian Journal of Chemical Research Vol 10 No 1 (2022): Edition for May 2022
Publisher : Jurusan Kimia, Fakultas Sains dan Teknologi, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ijcr.2022.10-lat

Abstract

A study has been conducted which aims to synthesize chitosan-citrate using ionic gelation method and its characterization with FTIR, SEM, SAA and PSA, as well as solubility and swelling tests. The results showed that chitosan reacted with sodium citrate produces chitosan-citrate particles. The product of chitosan-citrate has a rough and thickened surface morphology. Surface area of chitosan-citrate obtained is 35.233 m2/g and pore size is 0.027 cc/g, smaller than chitosan. Based on solubility and swelling tests in acidic, alkaline, and neutral media, chitosan-citrate has good resistance and low swelling effect.
Peningkatan Nilai Ekonomis Buah Kelapa dengan Pembuatan Nata de Coco dari Air Kelapa di Desa Morella Rahayu, Rahayu; Sutapa, I Wayan; Bandjar, A.; Latupeirissa, Jolantje; Gaspersz, Nelson; Pattiasina, Priska Marisa
Innovation for Community Service Journal Vol 1 No 2 (2023): Oktober 2023
Publisher : Department of Chemistry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/icsj.v1i2.10625

Abstract

Maluku memiliki banyak potensi sumber daya alam khususnya dalam bidang pertanian seperti tanaman perkebunan. Salah satu tanaman perkebunan palawija yang memiliki arti strategi bagi bangsa Indonesia adalah kelapa (Cocos Nucifera L.). Masyarakat Maluku selama ini komoditas kelapa baru sebatas dimanfaatkan pada produk primernya saja dalam bentuk kelapa segar maupun kopra untuk bahan baku minyak goreng. Hasil samping dan limbah belum dimanfaatkan secara optimal, sehingga belum dapat dihasilkan nilai tambah yang berarti secara ekonomi. Oleh karena itu, sebagai bentuk implementasi dari tugas Tridarma Perguruan Tinggi dalam bidang pengabdian, maka jurusan Kimia FMIPA Unpatti tergerak untuk memberikan penyuluhan dan pendampingan kepada masyarakat desa Morella dalam pengembangan pengolahan limbah air kelapa menjadi Nata de Coco sehingga dapat memberikan manfaat dari segi perekonomian terhadap masyarakat desa. Pemanfaatan limbah air kelapa dilakukan dengan menambahkan mikroba acetobacter xylinum yang berfungsi sebagai starter pembentukan nata de coco. Pembuatan nata de coco dari air kelapa menjadi bahan tambahan pengetahuan dan informasi yang nantinya dapat dimanfaatkan oleh masyarakat desa Morella untuk mengahsilkan produk bernilai ekonomi.
Edukasi Pengelolaan Obat (DAGUSIBU) kepada Masyarakat Desa Asilulu untuk Meningkatkan Pengetahuan tentang Pengelolaan Obat yang Benar Pentury, Evangeline; Telussa, Ivonne; Hattu, Nikmans; Latupeirissa, Jolantje; Nusaly, Windy Natalia
Innovation for Community Service Journal Vol 3 No 1 (2025): April 2025
Publisher : Department of Chemistry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/icsj.v3i1.19133

Abstract

Swamedikasi merupakan praktik umum untuk mengatasi masalah kesehatan ringan tanpa konsultasi medis, namun mengandung risiko jika dilakukan dengan tidak tepat. Program pengabdian masyarakat dilakukan di Desa Asilulu dengan menggunakan pendekatan edukatif untuk meningkatkan kesadaran tentang penggunaan dan pengelolaan obat yang tepat. Program ini berfokus pada konsep DAGUSIBU (Dapatkan, Gunakan, Simpan, Buang) yang bertujuan untuk mendidik masyarakat tentang praktik mengelola obat yang tepat-mulai dari memperoleh obat dari sumber terpercaya hingga membuang obat yang sudah kedaluwarsa dengan aman. Kegiatan diawali dengan observasi lapangan untuk mengidentifikasi tingkat pengetahuan masyarakat terkait pengelolaan obat, diikuti dengan sesi penyuluhan interaktif dan pembagian materi edukasi. Hasilnya menunjukkan peningkatan pemahaman masyarakat tentang penggunaan obat yang rasional, termasuk penggunaan obat yang tepat, penyimpanan yang aman, serta pembuangan obat yang ramah lingkungan. Kesadaran masyarakat terhadap potensi bahaya dari pengelolaan obat yang tidak tepat juga meningkat. Kegiatan ini menunjukkan bahwa edukasi berbasis komunitas efektif dalam menumbuhkan perilaku rasional dalam penggunaan obat. Pentingnya hasil ini terletak pada kontribusi nyata terhadap peningkatan kesehatan masyarakat dan upaya menjaga kelestarian lingkungan melalui praktik pengelolaan obat yang benar
Synthesis and Characterization of Tripolyphosphate Chitosans through a Crosslinking Process from High Chemical Weight Chitosans Latupeirissa, Jolantje; Tanasale, Matheis F. J. D. P.; Fransina, Eirene G.; Hattu, Nikmans; Pada, Semuel S.; Sopamena, Helna Lourita
Jurnal Penelitian Pendidikan IPA Vol 11 No 6 (2025): June
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i6.10903

Abstract

This study aims to synthesize and characterize chitosan-tripolyphosphate (CTPP) through ionic crosslinking between chitosan and sodium tripolyphosphate. The CTPP powder was characterized using Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), and surface area analysis (BET), alongside solubility, swelling, and point of zero charge (pHZPC) tests. FTIR spectra showed a peak at 1151.5 cm⁻¹ attributed to P=O stretching, confirming the interaction between chitosan and tripolyphosphate. XRD analysis indicated shifts in diffraction peaks, suggesting a successful crosslinking reaction. SEM images revealed that the resulting particles had a compact and aggregated morphology. BET analysis showed a decrease in surface area compared to pure chitosan, which may be attributed to particle agglomeration upon crosslinking. Solubility tests revealed that while chitosan is soluble in acidic media, the CTPP product is insoluble. The CTPP showed a swelling percentage of 60% in acidic conditions, indicating its potential responsiveness. The pHZPC measurement indicated a value of 6.2, with ΔpH = 0, suggesting moderate surface charge behavior in neutral pH conditions. Overall, the study confirms the successful synthesis of crosslinked CTPP with distinct physicochemical properties suitable for further application development.  
Pemanfaatan Avogadro untuk Pengenalan Molekul sederhana pada SMP Negeri 24 Maluku Tengah Maahury, Mirella Fonda; Souhoka, Fensia Analda; Latupeirissa, Jolantje; Sapulet, Sisca Madona
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.v1i1.8417

Abstract

Kimia secara umum telah diperkenalkan pada tingkat menengah pertama, di dalam pokok bahasan materi (zat) dan perubahannya. Untuk materi dan perubahannya, hanya dibahas tentang perubahan fisika dan kimia. Belum adanya pengenalan zat tersebut dalam skala mikro (bentuk atom maupun molekul.) Oleh karena itu, diperlukan pengenalan bentuk atau model molekul dalam skala mikro yang biasanya dibahas di dalam mata pelajaran kimia. Pengenalan model molekul kepada siswa SMP ini bertujuan agar para siswa mengetahui bagaimana model molekul zat yang biasa ditemui di sekitar lingkungannya dilihat dari kacamata kimia. Selain mempersiapkan siswa SMP ini ke jenjang yang lebih tinggi, melalui pengabdian ini diberikan diharapkan pemahaman awal mengenai bentuk molekul digunakan software. Software atau perangkat lunak yang digunakan adalah Avogadro. Pada pengabdian ini, digunakan metode ceramah dan demonstrasi. Ceramah dilakukan dengan cara memberikan materi zat dan perubahannya serta bentuk molekul sederhana yang biasanya ditemui di lingkungan sekitar. Demonstrasi atau peragaan dilakukan dengan menunjukkan langkah-langkah mengunduh dan menginstal software, serta menggambar molekul dengan software Avogadro. Hasil yang diperoleh adalah para peserta (siswa-siswi SMP Negeri 24 Maluku Tengah) dapat memahami apa itu molekul dan model molekul serta dapat mengoperasikan software Avogadro untuk menggambar struktur molekul sederhana seperti air dan cuka.
Introduction to Drinking Water Quality Standards for Communities in Poka Village, Teluk Ambon District Rumpakwakra, Ervina; Hattu, Nikmans; Jaya, Gede Wiratma; Nggolaon, Delpina; Rikumahu, Marcia Violetha; Thohirah, Afifah; Silahooy, Stevi; Latupeirissa, Jolantje; Telussa, Ivonne; Pada, Samuel Simra; Kololu, Micky
Jurnal Pengabdian Magister Pendidikan IPA Vol 7 No 1 (2024): Januari - Maret
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpmpi.v7i1.6564

Abstract

The quality of clean water used has been a top priority to maintain health and fulfill daily needs. There are many sources of clean water, including well water, bottled water, gallon water and PDAM water. The use of clean water in Poka Village still uses well water and gallon water, so there is concern among the community regarding the cleanliness and quality of the water. Therefore, this service is carried out to help answer public anxiety by introducing Drinking Water Quality Standards that have been determined in the Republic of Indonesia Minister of Health Regulation No. 492/MENKES/PER/IV/2010. Apart from that, we also show findings of polluted well water and also provide solutions on how to care for wells. During material delivery activities, we use an educational and participatory approach with the main focus being the community. The result of this service activity is that the community in Poka Village has good knowledge regarding drinking water quality standards so that it is hoped that the community can apply them in their daily lives.
Isoterm Adsorpsi Zat Warna Rhodamin B Menggunakan Karbon Aktif Limbah Sisik Ikan Kakap Putih (Lates calcarifer) Sebagai Adsorben Tanasale, Matheis F.J.D.P.; Latupeirissa, Jolantje; Fransina, Eirene Grace; Muliana, Muliana
Jurnal Kimia Fullerene Vol 9 No 1 (2024): 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.v9i1.413

Abstract

Adsorption rhodamine B dye using adsorbent of activated carbon from fish scales has been done. The study aims to determine the adsorption isotherm. Activated carbon was obtained through the process of carbonization, putting the fish scales into the furnace at 350 °C and characterized by XRD, the results showed that the three peaks with intensity in their regions were 26.45o, 32.69o, and 33.60o. It was calcined at the temperature of 450 °C and characterized by XRD. The results showed peaks shift were 26.52o, 29.66o, and 32.77o. The activation charcoal in a 3M KOH, dried in oven at 110 °C and characterized by XRD. The results showed, peaks with the highest intensity were 26.22o, 29.12o, and 32.43o, and the basal spacing is biggest than before activation. The determination of rhodamine B dye adsorption was characterized by UV-Vis spectrophotometer. The results showed that the optimum condition were 0.8 g mass adsorbent, the contact time of 100 minutes at pH of 3, and concentration of 10 ppm. The adsorption of rhodamine B dye using activated carbon from fish scales followed Freundlich isotherm with correlation coefficient (r2), KF, and n were 99.68%, 0.6298 mg/g, and 1.8685 respectively that showed fisisorption process.
Co-Authors Aziz, Thamrin Bandjar, A. Bijang, Catherina M. Ervina Rumpakwakra Fensia Analda Souhoka Fransina, Eirene G. Gaspersz, Nelson Gede Wiratma Jaya, Gede Wiratma Hattu, Nikmans I Wayan Sutapa Ivonne Telussa Johannes, Rosalina Kololu, Micky Latupeirissa, Astrid Letelay, Riwana M. Nurdin Maahury, Mirella Fonda Marcia Violetha Rikumahu Matheis F.J.D.P. Tanasale Muliana, Muliana Nasution, Annio Indah Lestari Nggolaon, Delpina Noya, Alesya Nusaly, Windy Natalia Pada, Samuel Simra Pada, Semuel S. Pattiasina, Priska Marisa Pentury, Evangeline Rahayu Rahayu Ratuhanrasa, Marike Sapulet, Sisca Madona Sekewael, Serly J. Seumahu, Cecelia A Silahooy, Stevi Sopamena, Helna Lourita Stefanus, Quendeline Talapessy, Firda Tanasale, Matheis F. J. D. P. Thohirah, Afifah Tuhalauruw, Eltha