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All Journal HAYATI Journal of Biosciences Jurnal Sains dan Teknologi KOVALEN: Jurnal Riset Kimia Indonesia Chimica Acta Akta Kimia Indonesia Sains Natural: Journal of Biology and Chemistry Chemistry Indonesian Journal of Chemical Research JURNAL EDUCATION AND DEVELOPMENT Wahana : Tridarma Perguruan Tinggi Journal on Education Jurnal Kreativitas PKM JURNAL PENDIDIKAN MIPA Jurnal Inovasi Teknik Kimia Abdimas: Jurnal Pengabdian Masyarakat Universitas Merdeka Malang Jurnal Suluh Pendidikan BERNAS: Jurnal Pengabdian Kepada Masyarakat JURNAL PENDIDIKAN, SAINS DAN TEKNOLOGI Jurnal Pengabdian kepada Masyarakat Nusantara Jurnal Abdimas Bina Bangsa JURNAL PENDIDIKAN INDONESIA: Teori, Penelitian, dan Inovasi Indonesian Community Journal Aptekmas : Jurnal Pengabdian Kepada Masyarakat Educativo: Jurnal Pendidikan Molekul: Jurnal Ilmiah Kimia Jurna Beta Kimia Journal of The Indonesian Society of Integrated Chemistry
Erly Grizca Boelan
Universitas Katolik Widya Mandira
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AKTIVITAS ANTIBAKTERI EKSTRAK POLAR DAN NON POLAR BIJI KELOR (Moringa oleifera) ASAL PULAU TIMOR NTT Saudale, Fredy; Boelan, Early
JST (Jurnal Sains dan Teknologi) Vol. 7 No. 1 (2018)
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (895.316 KB) | DOI: 10.23887/jstundiksha.v7i1.13187

Abstract

Tumbuhan kelor (Moringa oleifera) telah digunakan dalam pengobatan tradisional. Namun demikian belum diketahui aktivitas antibakteri ekstrak biji kelor asal pulau Timor NTT pada bakteri E.coli dan S.aureus. Ekstrak non polar didapatkan dengan metode maserasi menggunakan n-heksana yang kemudian diidentifikasi komponen kimianya dengan GC-MS. Ekstrak polar didapatkan dengan merebus biji kelor pada suhu 70oC menggunakan akuades. Dari hasil penelitian didapatkan bahwa kandungan terbesar pada ekstrak non-polar adalah asam oktadek-9-enoat (85,79%) yang adalah asam trans oleat dan asam-9-oktadekanoat (12,69%), suatu asam cis-oleat. Ekstrak polar pada konsentrasi optimum 100% memberikan daya hambat yang lebih besar yaitu 5,67 mm terhadap bakteri E. coli dan 7,33 mm terhadapS. aureus dibandingkan ekstrak non-polar yang memberikan daya hambat 4,67 mm terhadapE. coli dan 5,00 mm S. aureus. Disimpulkan bahwa ekstrak polar dan nonpolar biji kelor menunjukkan aktivitas antibakteri E.coli dan S.aureus. Perbedaan daya hambat didugakarena perbedaan pada kandungan senyawa kimianya.
Pemberdayaan RT 041 Liliba dalam Pengelolaan Sampah Berkelanjutan dan Pemasaran Produk Ramah Lingkungan Lopes Amaral, Maria Augustin; Manehat, Beatrix Yunarti; Tukan, Gerardus Diri; Boelan, Erly Grizca; An, Clarisa Margareth; Gani, Elisabeth Adelia Merdekawati; Setiawan, Apolinaris; Gokok, Gaspar Antonius Padua Rapok; Bria, Kristina; Boikh, Ananda Oky Mekel M.; Luan, Olyva Renyarosari
Jurnal Pengabdian kepada Masyarakat Nusantara Vol. 5 No. 4 (2024): Jurnal Pengabdian kepada Masyarakat Nusantara (JPkMN) Edisi September - Desembe
Publisher : Lembaga Dongan Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55338/jpkmn.v5i4.4925

Abstract

The improper waste management in RT 041 Liliba, Kupang City, has become an urgent environmental issue. Organic and inorganic waste are often discarded without proper segregation, contributing to air and soil pollution. To address this, a training and mentoring program was implemented focusing on waste segregation, managing plastic waste through the Waste Bank, and processing food waste into liquid fertilizer and compost. The program involved 30 participants, including RT administrators and local residents. The results showed an improvement in community awareness and knowledge about waste segregation and management, as well as increased participation in the Waste Bank program and fertilizer production. It is hoped that this initiative can be continued and expanded to other communities in Kupang City to create a cleaner and healthier environment. The success of this program highlights the importance of collaboration between the community, RT administrators, and other stakeholders in managing waste responsibly and sustainably.
Enhanced Biodegradation of DDT by White-Rot Fungus Phlebia brevispora TMIC34596 in a Nutrient-Rich Medium at Short Incubation Time Boelan, Erly Grizca; Purnomo, Adi Setyo; Fajriah; Kamei, Ichiro; Leba, Maria Aloisia Uron; Missa, Hildegardis; Baunsele, Anselmus Boy; Kopon, Aloysius Masan
HAYATI Journal of Biosciences Vol. 33 No. 1 (2026): January 2026
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.33.1.250-255

Abstract

1,1,1-Trichloro-2,2-bis(4-chlorophenyl) ethane (DDT) is a persistent organic pollutant that remains a global environmental concern due to its high toxicity and recalcitrance. This study investigated the ability of the white-rot fungus Phlebia brevispora to degrade DDT in a nutrient-rich Potato Dextrose Broth (PDB) medium under a short incubation time. The fungus degraded 64.25% of DDT within 7 days. Metabolites identified by GC/MS were DDE (1,1-dichloro-2,2-bis(4-chlorophenyl) ethylene), DDD (1,1-dichloro-2,2-bis(4-chlorophenyl) ethane), and DDMU (1-chloro-2,2-bis(4-chlorophenyl) ethylene), indicating both reductive dechlorination and dehydrogenation pathways. The results demonstrate that P. brevispora has strong potential for rapid biotransformation of DDT in nutrient-rich environments.
Development of Student Worksheets on Thermochemistry Material Based on Problem-Based Learning (PBL) for Phase F Pong, Anjela A.; Hayon, Vinsensia H.B.; Boelan, Erly Grizca
Jurnal Beta Kimia Vol 5 No 2 (2025): Volume 5 Number 2, November 2025
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/jbk.v5i2.21201

Abstract

This study aims to evaluate the validity of Student Worksheets (LKPD) in thermochemistry material designed using a Problem-Based Learning (PBL) approach, assess the implementation of learning using the PBL model, and examine students’ responses to the developed worksheets. The research employed the 4-D development model, although it was limited to the development stage only. The study involved 26 students from class XI.3 at SMA Negeri 1 Semau Selatan as the research subjects. Data collection methods included interviews, validation, and the distribution of questionnaires. The results of the study revealed that: (1) the developed Student Worksheets was considered highly valid, with average scores from material expert validators I and II at 93,05% and 98,6%, respectively, and from media expert validators I and II at 91,65% and 94,45%, respectively; (2) all aspects of classroom learning using the PBL model were implemented successfully; and (3) students’ responses to the LKPD were very positive, with an average score of 90%.
Penggunaan Sabut Kelapa Teraktivasi NaOH sebagai Adsorben Metilen Biru: Utilization of Coconut Fiber NaOH-Activated as Blue Methylene Adsorbent Baunsele, Anselmus Boy; Boelan, Erly Grizca; Kopon, Aloisius Masan; Taek, Maximus M.; Tukan, Gerardus D.; Missa, Hildegardis
KOVALEN: Jurnal Riset Kimia Vol. 9 No. 1 (2023): April Edition
Publisher : Chemistry Department, Mathematics and Natural Science Faculty, Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/kovalen.2023.v9.i1.16274

Abstract

Methylene blue is a textile dye with carcinogenic and mutagenic properties which can cause various problems for the environment and organisms, therefore it is necessary to treat the waste. This study describes the adsorption of methylene blue using base-activated coconut coir. Coconut coir as waste was prepared into 80 mesh-sized powder and then activated using NaOH solution. The base-activated coconut fiber was then used for methylene blue adsorption under several optimization conditions such as pH, contact time, concentration, and adsorption isotherm. The determination of methylene blue was adsorbed by the adsorbent measured using UV-VIS. The pH and contact time results were 7 and 75 minutes, respectively, with the adsorption capacity (qe) of 1.98 mg g-1 and 99.91%. The isotherm adsorption of blue methylene followed the Langmuir isotherm model with the maximum adsorption capacity (Qmax) of 0.2 mg -1. The result showed that the coconut fiber base activated could be used as a dye adsorbent.
Co-Authors Adean Elisabeth Berti Bano Adi Setyo Purnomo Adrianus Ketmoen Afrianus Jenudin Alexander Reynaldi Koli Alfry Aristo Jansen Sinlae Aloisius M. Kopon Aloisius Masan Kopon Aloisius Masan Kopon Aloysius Masan Kopon An, Clarisa Margareth Ang, Clarisa Margaretha Anjelina Derci Jenimat Anjelina Derci Jenimat Anselmus Boy Baunsele Apolonia Loda Apriono Sutiono Beatrix Yunarti Manehat Benediktus Peter Lay Boikh, Ananda Oky Mekel M. Bria, Kristina D.W. Rabawati Desiderata N. Fallo Dwi Siswanta Ermelinda Hoar Halek Ernesta Uba Wohon Faderina Komisia fajriah Ferdinandus Pantur Fredy Saudale Gani, Elisabeth Adelia Merdekawati Gerardus Diri Tukan Goa, Rio Fernando Gokok, Gaspar Antonius Padua Rapok Hasti, Florentina Saji Hayon, Vinsensia H.B. Hildegardis Missa Ida Ayu Putu Sri Widnyani Imelda Paul Jesica Mirna Aprilia Johnson N Naat Kafelau, Marianus Kamei, Ichiro Kapitan, Origenes Boy Kenneth R.M Anakottapary Kopon, Aloisius Masan Kopon, Aloysius Masan Laulaleng, Susan Oren Leba, Maria A. U. Leba, Maria Uron Luan, Olyva Renyarosari Luther Kadang Manu, Frafilius Don Bosko Maria A. U. Leba Maria Aloisia Uron Leba Maria Augustin Lopes Amaral Maria Benedikta Tukan Maria Bernadethe Mawarni Gelu Wutun Maria O. Krisdayanti Maria T.Geme Marianus Jefri Agang Mariaty Tada Maximus M Taek Melania Wildaiman Merpiseldin Nitsae Paskalis Andrianus Nani Paulus Adrianus K. L. Ratumakin Pong, Anjela A. Priscilla M. A Hornay Rahayu Rahayu Rahayu Rahayu Rahayu Rofina M. Rua Rosalia Wea Tadi Nuwa Roswita Bere Ruas, Adilson de Castro Ruas, Juvencio de Castro Ruas, Noemia A. Saudale, Fredy Sebdiel Boimau Setiawan, Apolinaris Sisilia Daeng Bakka Mau Solly Aryza Stefanus Don Rade Taek, Maximus M. Tangi, Hironimus Theresia Wariani Theresia Wariani Timotius Nesanto Tinenti, Yanti Rosinda Trifiani A.B Ena Tukan, Gerardus D. Tukan, Maria Benediktas Viany Cecilia Pah Yasinta S. Enes Yustina D Lawung Yustina Dwisofiani Lawung