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All Journal Jurnal Ilmu Lingkungan Jurnal Riset Kimia JURNAL INTEGRASI PROSES Jurnal SOLMA Jurnal Kimia Terapan Indonesia Jurnal Pengabdian Masyarakat MIPA dan Pendidikan MIPA Akta Kimia Indonesia Jurnal Saintek Lahan Kering Indonesia Journal of Halal JURNAL PENGABDIAN KEPADA MASYARAKAT Agroprimatech Jurnal Crystal : Publikasi Penelitian Kimia dan Terapannya Stannum : Jurnal Sains dan Terapan Kimia BIO-EDU: Jurnal Pendidikan Biologi Molluca Journal of Chemistry Education (MJoCE) BERNAS: Jurnal Pengabdian Kepada Masyarakat Bakti Cendana: Jurnal Pengabdian Masyarakat Journal of Tropical Animal Science and Technology Hydrogen: Jurnal Kependidikan Kimia Jurnal Inovasi Penelitian dan Pengabdian Masyarakat Livestock and Animal Research Journal of Chemical Science and Application Jati Emas (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat)
Kolo, Maria Magdalena
Program Studi Kimia, Fakultas Pertanian, Sains Dan Kesehatan, Universitas Timor, NTT, Indonesia
Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Dentistry Economics, Econometrics & Finance Education Energy Engineering Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Neuroscience Nursing Public Health Social Sciences Veterinary Other

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Synthesis of Cellulose Acetate From Coil Waste (Borassus flabellifer L) Using Delignification Time Variations: Sintesis Selulosa Asetat Dari Limbah Sabut Lontar (Borassus flabellifer L) dengan Menggunakan Variasi Waktu Delignifikasi Batu, Matius Stefanus; Kolo, Maria Magdalena; Rika, Fransiska
Stannum : Jurnal Sains dan Terapan Kimia Vol 6 No 2 (2024): October 2024
Publisher : Department of Chemistry - Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jstk.v6i2.4113

Abstract

Synthesis of cellulose acetate form palm coir (Borassus flabellifer L) waste has been synthesized by varying the time in the delignification process. This study aimed to determine the characteristics of cellulose acetate form palm coir waste (Borassus flabellifer L) and the optimum time for the delignification process. This research was conducted in several stages: sample preparation, cellulose isolation (delignification and bleaching process), and synthesis of cellulose acetate (activation, acetylation, and hydrolysis process). The cellulose acetate obtained was then charatecrized by testing for water content, acetyl content, and degree of substitution and functional grup analysis using a fourier transform infra-red (FTIR) spectrophotometer. In the delignification process, variations of the delignification time were usesd, namely 60, 90, 120, and 150 minutes. Form the results of the study, the characteristics of cellulose acetate in palm coir were optained, namely water content of 0.95%‒2.16%, acetyl content of 37.19%‒40.85%, degree of substitution of 2.2‒2.6 and identification of functional groups using FTIR showed that there was a typical absorption of cellulose acetate on the carbonyl group (C=O) and the ester group (C-O acetyl). The results of variations in the time of the delignification process showed that the optimum reaction time was 120 minutes with the yield of cellulose acetate produced at 254.4%, water content 2.16%, acetyl content 40.85%, degree of substitution (DS) 2.6. the cellulose acetate produced belongs to the type of cellulose diacetate, which can be further utilized in manufacturing threads, membranes, adhesives of films, and mask filters.
Isolation and Identification of Bacteria from Cattle Rumen Fluid and Their Application on In Vitro Digestibility of Rice Straw Bira, Gerson Frans; Sio, Stefanus; Batu, Matius S; Pardosi, Lukas; Kia, Kristoforus W; kolo, Maria Magdalena; Nubatonis, Alfred
Journal of Tropical Animal Science and Technology Vol. 7 No. 3 (2025): Journal of Tropical Animal Science and Technology
Publisher : Animal Husbandry Study Program, Faculty of Agriculture, Timor University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32938/jtast.v7i3.10038

Abstract

This study aimed to isolate and identify bacteria from the rumen fluid of Bali cattle and to evaluate their effect as microbial inoculants on the in vitro digestibility of rice straw. The experiment was conducted using a Completely Randomized Design (CRD) consisting of four treatments and four replications. The treatments included rice straw silage with the addition of 0%, 5%, 10%, and 15% of local microorganisms (MOL) derived from cattle rumen fluid. The observed variables included the isolation and identification of bacteria from the rumen fluid, and the assessment of in vitro digestibility, including Dry Matter Digestibility (DMD), Organic Matter Digestibility (OMD), Volatile Fatty Acid (VFA) concentration, and ammonia (NH₃) production. The results showed that the addition of rumen fluid MOL significantly (P<0.05) improved the digestibility parameters. The highest DMD (52.44%) and OMD (47.11%) were obtained from the treatment with 15% MOL. VFA and NH₃ concentrations also increased, indicating enhanced microbial activity and fermentation efficiency. The study concludes that MOL derived from cattle rumen fluid, particularly those containing Bacillus sp., is effective in improving the nutritional quality and digestibility of rice straw
New Innovation in Utilizing Natural Dyes Ecoprint Pounding In the Dahlia Farmers Group, TTU-NTT Regency: Inovasi Baru Pemanfaatan Pewarna Alami “Ecoprint Pounding” Di Kelompok Tani Dahlia Kabupaten TTU-NTT Noviana Mery Obenu; Maria Magdalena Kolo; Eduardus Edi; Yolanda Getrudis Naisumu
JATI EMAS (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat) Vol. 9 No. 1 (2025): Jati Emas (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat)
Publisher : DPD Jatim Perkumpulan Dosen Indonesia Semesta

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

Abstract

The process of making a piece of woven fabric using natural dyes takes a long time, starting from collecting the materials to dyeing the yarn. This causes the weaving activists in the Dahlia Farmers Group to only be able to weave one piece of cloth in ± 3-4 days or even 1 week. The Dahlia Farmers Group has used natural dyes for generations, but the use of natural dyes is only on woven yarn and has not known and tried to make ecoprint. This prompted the Service Team to provide skills in the form of socialization and ecoprint training as a new innovation in the use of natural dyes. In addition, this training is also to instill knowledge and stimulate ideas about environmentally sustainable entrepreneurial products, thereby increasing income, and introducing additional products outside of traditional weaving. The approach adopted in this training, in addition to socialization explaining the principles of ecoprint, also focuses specifically on pounding techniques. Based on the results of the activity, it appears that the partners are enthusiastic and have a great interest in the training and the products produced, in the form of plant-patterned fabrics and bags with a variety of colors.
Empowerment of the Dahlia Farmers Group in the Introduction and Development of Lemongrass as a Mosquito Repellent for Dengue Fever Agents: Pemberdayaan Masyarakat Kelompok Tani Dahlia Dalam Pengenalan Dan Pengembangan Serai Wangi Sebagai Reppelent Nyamuk Untuk Pencegahan penyakit DBD Noviana Mery Obenu; Janrigo Klaumegio Mere; Maria Magdalena Kolo; Yolanda Getrudis Naisumu; Eduardus Edi; Matius Stefanus Batu
JATI EMAS (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat) Vol. 10 No. 3 (2026): Jati Emas (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat)
Publisher : DPD Jatim Perkumpulan Dosen Indonesia Semesta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36339/je.v10i3.504

Abstract

Dengue Hemorrhagic Fever (DHF) is a disease caused by the dengue virus, transmitted through the bite of the Aedes aegypti mosquito. The high number of DHF cases is influenced by a weak immune system and high mosquito population density. People generally use synthetic insecticides to prevent mosquito bites, but long-term use, such as mosquito coils and lotions containing DEET, has the potential to cause side effects. Therefore, safer and more environmentally friendly alternatives are needed, such as botanical insecticides. Citronella (Cymbopogon nardus L.) is one plant that has the potential to be a mosquito repellent because it contains the compounds geraniol, citronellal, and citronellol. Although some members of the Dahlia farmer group have citronella plants in their yards, their use as a mosquito repellent has not been optimized. Community Service (PKM) activities are carried out through outreach and training on making bio-spray from citronella as a mosquito repellent for dengue prevention. This activity aims to educate the public, especially housewives who are members of the Dahlia farmer group, about the dangers of dengue fever, the risks of long-term use of chemical insecticides, and the development of plant-based bio-sprays as an alternative solution to reduce the number of dengue fever transmissions.
Quality of Complete Feed Wafer with Different Plant Protein Sources for Small Ruminants Feed Bira, Gerson Frans; Tefa, Azor Yulianus; Kolo, Maria Magdalena; Nitbani, Cornelis Astridino; Yonathan Lulu, Deni; Akoit, Agustinus
Livestock and Animal Research Vol 22, No 1 (2024): Livestock and Animal Research
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/lar.v22i1.68165

Abstract

Objective: This study aimed to assess the quality of complete feed wafers with different plant protein sources for a feed of small ruminants.Methods:The research was conducted in May-September 2022. The research method used a completely randomized design (CRD) with 4 treatments and 4 replications. The method used in this study was Completely Randomized Design (CRD) with 4 treatments, namely R0 = Wafer with an animal protein source (Fish meal) (Control), R1 = Wafers with protein source Sesbania grandiflora, R2 = Wafers with protein source Gliricidia sepium. R3=Wafer with protein source Leucaena leucocephala.The research variables consisted of physical quality (moisture content, wafer density, specific gravity, water absorption) and nutritional quality (dry matter, organic matter, crude protein, crude fat, crude fiber, and nitrogen free extracts). Data analysis according to the Analysis of Variance procedure using SPSS version 21.Results:The results showed that the use of plant protein sources had no significant effect (P>0.05) on water content and wafer density but had a significant effect (P<0.05) on specific gravity and water absorption capacity. The use of plant protein sources can increase the value of water content, wafer density, and specific gravity and reduce water absorption capacity. Meanwhile, the crude protein (CP) content of the wafer had no significant effect (P>0.05) and produced the same value as using fish meal. Other nutritional variables had a significant effect (P<0.05) such as DM, OM, EE and NFE which increased and CF decreased on the use of plant protein sources in making feed wafers compared to the use of fish meal.Conclusions: It was concluded that the use of legumes Sesbania grandiflora, Gliricidia sepium, and Leucaena leucocephala as a source of vegetable protein in wafers could replace fish meal. The three types of legumes had the same effect on the physical and nutritional quality of the resulting product.
Co-Authors Adolvina Kono Agustina Rosalia Saka Akoit, Agustinus Alfred Nubatonis Azor Yulianus Tefa Batu, Matius S Batu, Matius Stafenus Berek, Gaudesisus Usi Bernadina Metboki, Bernadina Bira, Gerson Frans Bria, Deseriana Bria, Emilia Juliyanti Edi, Eduardus Eduardus Yosef Neonbeni Eka Maria Sanit Emerensiana Naes Febrya Christin Handayani Buan Fransiska Rika Fredy Kurniawan Funan, Selviana Ermalinda Gelyaman, Gebhardus Djugian Gradiana Yosefa Nana Hilarius Y Sikone Janrigo Klaumegio Mere Jefry Presson jefry Presson Kia, Kristoforus W Korbafo, Elisabeth Lukas Pardosi Mading, Ridwan Mako, Febriana Manek, Seprianus Septian Maria Fridolina Taek Maria Imaculata Mali Maria Rosanti Bani Mata, Meri Halsiana Matius Stefanus Batu Mere, Jenrigo Klaumegio Metriana Matilda Taus N. M. Obenu Naisau, Mikhael Rifantus Nitbani, Cornelis Astridino Noviana Getrudis Abi Noviana Mery Obenu Nugraha K. F. Dethan Oktovianus R Nahak Paulus Klau Tahuk Pieter Jackson Lopez Dethan Regina Seran Rika, Fransiska Risna Erni Yati Adu Saka, Agustina Rosalia Sakan, Sergius Sefrinus Maria Dolfi Kolo Sio Stefanus, Sio Sipayung, Boanerges Putra Taus, Jonisius Tea, Marselina Theresia Djue Tefa, Azor Y Teti, Roswita Thaal, Elisa M. Tse, Anastasia Wilda Lumban Tobing Yakobus Pffeferius Edvend Saba Agu Yohana Ivana Kedang Yolanda Getrudis Naisumu Yonathan Lulu, Deni Yuni Sine Zofar Agluis Banunaek