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All Journal Jurnal Kimia (Journal of Chemistry) Natural B Jurnal Riset Kimia SC (Savana Cendana) : Jurnal Pertanian Konservasi Lahan Kering Al-Kimia Abdimas Talenta : Jurnal Pengabdian Kepada Masyarakat Jurnal Pengabdian Masyarakat MIPA dan Pendidikan MIPA Jurnal Saintek Lahan Kering JATI EMAS (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat) Bakti Cendana: Jurnal Pengabdian Masyarakat Jurnal Pasopati : Pengabdian Masyarakat dan Inovasi Pengembangan Teknologi Jurnal Media Tropika
Tea, Marselina Theresia Djue
Department Of Chemistry, Faculty Of Agriculture, Universitas Timor
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Medicine & Pharmacology Nursing Public Health Social Sciences Veterinary Other

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Education of making and distribution of betel leaves hand sanitizers to kefamenanu Pasar Baru sellers Mada, Grandianus Seda; Tea, Marselina Theresia Djue; Pardosi, Lukas; Welsiliana; Pramita, Dira Asri; Batu, Matius Stefanus; Siahaan, Desta Gloria
ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat Vol. 5 No. 2 (2020): ABDIMAS TALENTA : Jurnal Pengabdian Kepada Masyarakat
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1050.895 KB) | DOI: 10.32734/abdimastalenta.v5i2.4307

Abstract

The business’ level, lack of knowledge about the making process and use of hand sanitizers from natural ingredients caused sellers in Pasar Baru Kefamenanu do not apply the health protocols during transactions with buyers. Therefore, there needs to be educated about natural ingredients that can be used as hand sanitizers, the making process, and how to use them. Natural ingredients that are found in Kefamenanu are betel leaves. Education on making hand sanitizers from betel leaves helps sellers to be able to make their own hand sanitizers. The addition of aloe vera to betel leaves extract aims to make the liquid hand sanitizer becomes softer. While lime and perfume are to get rid of the betel leaves’ smell. The distribution of hand sanitizers that has been made can be an example of products from natural ingredients and the storage bottles provided can be used as a refill place for hand sanitizer.
Optimization of Pesticide Analysis Method for Diazinon and Chlorantraniliprol Using High Performance Liquid Chromatography (HPLC) Marselina Theresia Djue Tea; Akhmad Sabarudin; Hermin Sulistyarti
Natural B, Journal of Health and Environmental Sciences Vol 4, No 2 (2017)
Publisher : Natural B, Journal of Health and Environmental Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (190.077 KB) | DOI: 10.21776/ub.natural-b.2017.004.02.1

Abstract

Methods of obtaining diazinone and chlorantraniliprol in soil samples have been developed. Analytes were extracted using acetonitrile by using an ultrasonic solvent extraction method (USE). The discovery uses high performance liquid chromatography using a UV detector. The optimum conditions for the separation of both pesticides are Acetonitrile composition: Air (60:40), flow rate 0.4 mL / min, and at 220 nm wavelength. The more the amount of acetonitrile in the eluent mixture the faster the retention time in the column. Retention time respectively, chlorantraniliprol 10,525, and diazinon 21,029.
Analisis Kandungan Logam Berat Kromium (Cr) dalam Sedimen di Perairan Teluk Ambon Bagian Dalam Matius Stefanus Batu; Marselina Theresia Djue Tea; Antho Netty Siahaya; Yeslia Utubira
Saintek Lahan Kering Vol 2 No 2 (2019): JSLK Desember 2019
Publisher : Fakultas Pertanian, Universitas Timor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (288.194 KB) | DOI: 10.32938/slk.v2i2.870

Abstract

Analysis of Chromium (Cr) heavy metal content in sediment have been done at inner part of Ambon Bay by using Atomic Absorption Spectrofotometer (AAS). This analysis has been done in six sampling areas, they are : Galala (the first locations), Lateri (the second location), Negeri Lama (the third location), Waeheru (the fourth location), Poka (the fifth location), and Halong (the sixth location). The study aims to determine the content of chromium metal (Cr) in sediments at inner part of Ambon Bay. The analysis showed that the Cr metal content ranged from 33.68-191.74 mg/kg. The chromium (Cr) heavy metal content in sediments is mostly among the quality standards set by the ANZECC (Australian and New Zealand Environment and Conservation Council) in 2000, which is 80-120 mg/Kg
ANALISIS DIAZINON PADA TANAH LAHAN PERTANIAN MENGGUNAKAN KROMATOGRAFI CAIR KINERJA TINGGI Marselina Theresia Djue Tea; Akhmad Sabarudin; Hermin Sulistyarti
Saintek Lahan Kering Vol 3 No 1 (2020): JSLK JUNI 2020
Publisher : Fakultas Pertanian, Universitas Timor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (189 KB) | DOI: 10.32938/slk.v3i1.1021

Abstract

A method for the determination of diazinon in soil samples has been developed. The analyte was extracted with acetonitrile from farmland soil sample. Determination and quantification of diazinon were perfomed by high perfomance liquid chromatography (HPLC) with an UV detector. Optimum conditions for diazinon analysis were eluent composition of acetonitrile:water ratio of 60:40, 0.4 mL/min of flow rate, and 220 nm of wavelength. Under the optimum conditions, diazinon linearity was between 1 and 25 mgL-1 with R2 of 0.9976, 1.19 mgL-1 LOD, and 3.98 mgL-1 LOQ. When the method was applied to the soil sample, both pesticides showed acceptable recoveries for real sample of more than 85%: thus, the developed method meets the validation requirement. Under this developed method, the concentrations of diazinon in the soil samples were below the LOD and LOQ (0.577 mgL-1). Therefore, it can be concluded that the soil samples used in this study did not contain diazinon.
Pencegahan Penularan COVID-19 Melalui Penguatan Perilaku Siswa dan Guru SDK Seoam 1 Eban Kecamatan Miomaffo Barat Grandianus Seda Mada; Dicky Frengky Hanas; Lukas Pardosi; Welsiliana Welsiliana; Didi Prasetyo Benu; Marselina Theresia Djue Tea; Dira Asri Pramita; Desta Gloria Siahaan
Bakti Cendana Vol 4 No 2 (2021): Bakti Cendana: Jurnal Pengabdian Masyarakat
Publisher : LPPM Universitas Timor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32938/bc.4.2.2021.1-7

Abstract

Salah satu alasan sekolah masih belum dibuka secara penuh hingga kini adalah potensi terjadinya penularan melalui siswa-siswa yang berkumpul dalam waktu lama di ruang tertutup. Beberapa penelitian menunjukan bahwa menutup sekolah akan memperlambat perkembangan infeksi. Namun, langkah-langkah yang lebih luas seperti social distancing, terbukti memiliki efek pengendalian yang lebih besar. Risiko dari pembukaan sekolah akan bergantung pada seberapa baik sekolah mengendalikan penularan, misalnya dengan penggunaan masker dan membatasi okupansi. Oleh karena itu, perlu dilakukan kembali penguatan perilaku untuk mencegah penularan penyakit Covid-19 kepada siswa dan guru. Bentuk Kegiatan Pengabdian yang dilakukan adalah pembagian masker dan edukasi mengenai dampak penyakit Covid-19 kepada siswa dan guru SDK Seoam 1 Eban, Kefamenanu. Hasil dari kegiatan ini adalah para siswa dan guru dapat melakukan protokol kesehatan secara sadar dan benar yaitu melalui 3M: memakai masker, menjaga jarak dan menghindari kerumunan, serta mencuci tangan pakai sabun. Kata Kunci: Covid-19, Protokol Kesehatan, Guru dan Siswa
Preparation of Indigo Paste for Natural Dyeing of Timor Woven Fabric in Amol Village, North Central Timor Regency Risna Erni Yati Adu; Marselina Theresia Djue Tea; Gebhardus Djugian Gelyaman; Jefry Presson
Jurnal Pengabdian Masyarakat MIPA dan Pendidikan MIPA Vol 6, No 2 (2022): Vol 6, No 2 (2022)
Publisher : Yogyakarta State University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (290.584 KB) | DOI: 10.21831/jpmmp.v6i2.50513

Abstract

The lack of knowledge and skills of the weaver community in Amol Village, North Central Timor Regency to prepare natural dye from natural resources that are difficult to be found in dry season is the main reason to conduct this service activity. This training was aimed to improve the knowledge and skills of the weaver group and providing them indigo paste as a natural color stock that can be stored and used during dry season. Service activities were carried out through 2 steps, namely counseling and training, which begins with a demonstration by service team and then continues with independent practice while being accompanied by the team. The knowledge of the weaver group to extract natural dyes from natural resources has been improved, as evidenced by the evaluation results. Members of the weaver group became more skilled in preparing indigo paste from Indigofera tinctoria leaves. At the end of the activity, indigo paste products were obtained which were applied to Timor woven fabric.
Aktivitas Enzim Tanin Asil Hidrolase pada Kondisi Optimum Fermentasi Lactobacillus plantarum Menggunakan Tepung Ganyong (Canna edulis Kerr) sebagai Substrat Azor Yulianus Tefa; Marselina Theresia Djue Tea
Savana Cendana Vol 7 No 04 (2022): Savana Cendana (SC) - October 2022
Publisher : Fakultas Pertanian, Universitas Timor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (273.849 KB) | DOI: 10.32938/sc.v7i04.1932

Abstract

This study aimed to determine the activity of tannin acyl hydrolase enzyme produced under the optimum conditions of Lactobacillus plantarum fermentation using canna flour (Canna edulis Kerr) flour as substrate. The research process began with the production of tannin acyl hydrolase enzyme, then proceeded with the isolation of the crude enzyme and then the activity of the tannin acyl hydrolase enzyme were measured. The variations of inoculum volume in this study were 1 mL, 3 mL, and 5 mL, with 2 grams of substrate. The variation of pH used when testing the enzyme activity was pH 4, pH 5, pH 6, and pH 7, the temperature variations used were 35°C, 40°C, 45°C, and 50°C, while the incubation time variations were 12 hours, 24 hours, 36 hours, and 48 hours. The results showed that the highest activity of tannin acyl hydrolase enzyme was obtained at 1.13 U/mL at optimum pH of 6, 0.88 U/mL at optimum temperature of 45°C, and 0.89 U/mL for optimum incubation time of 36 hours.
PENERAPAN EDIBLE COATING BERBAHAN GEL ALOE VERA UNTUK MEMINIMALISIR KERUSAKAN BUAH TOMAT DI KELOMPOK TANI OEMANAS, DESA NIAN, KABUPATEN TTU Marselina Theresia Djue Tea; Risna Erni Yati Adu
Jurnal Pasopati : Pengabdian Masyarakat dan Inovasi Pengembangan Teknologi Vol 4, No 4 (2022)
Publisher : Fakultas Teknik Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/pasopati.2022.16236

Abstract

Produksi buah tomat Kelompok Tani Oemanas di Desa Nian selama ini cukup tinggi waktu panen, akan tetapi teknik pengolahan dan pengawetan pasca panen masih sangat terbatas. Oleh karena itu perlu dilakukan tindakan pengendalian pematangan buah tomat melalui pelapisan menggunakan teknik coating berbasis bahan alam yang dapat dimakan (Edible coating/EC) untuk meminimalisir kerusakan buah tomat pasca panen. Beberapa metode yang diterapkan dalam kegiatan pengenalan dan penerapan edible coating dalam mengendalikan pematangan buah tomat yaitu melalui observasi, persiapan alat dan bahan, sosialisasi yang dilakukan melalui ceramah dan diskusi bersama, pembuatan dan penerapan edible coating yang dilakukan melalui demonstrasi tim pengabdian dan praktik secara mandiri oleh peserta sambil didampingi oleh tim, kemudian dilanjutkan dengan monitoring, evaluasi dan pelaporan. Hasil kegiatan menunjukkan adanya peningkatan pengetahuan dan keterampilan kelompok tani Oemanas dalam melapisi buah tomat hasil panen dengan edible coating berbasis gel Aloe vera.Kata kunci : edible coating, buah tomat, aloe vera, Nian
Ekstraksi Tanin dari Limbah Kulit Biji Asam dan Penggunaannya Sebagai Biomordan pada Pewarnaan Tenun Timor Secara Alami Risna Erni Yati Adu; Marselina Theresia Djue Tea; Yunita Bouk
Jurnal Riset Kimia Vol. 13 No. 2 (2022): September
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrk.v13i2.509

Abstract

Tannins from tamarind seed husk were extracted and applied as a biomordant for natural dyeing process of Timor woven fabrics. Tannins were extracted using hot distilled water, qualitatively and quantitatively analyzed and applied as a color binder to the woven fabrics. The color characteristics of woven fabrics with tannins were compared to the woven fabrics that mordanted with Al2(SO4)3 and FeSO4 at the concentration of 15%. Tamarind seed husk tannins are in the form of a brownish red powder. Qualitative and quantitative tests showed that tamarind seed coat contained condensed tannins with a total concentration of 70.08 ± 0.14%. Tannins identification by FT-IR spectroscopy showed a strong band absorption at 3369 cm-1 for O-H group and a weak absorption at 1721 cm-1 due to the C=O stretch. A strong absorption at 1611-1608 cm-1 was observed for C=C group in the aromatic ring and was strengthened with a strong absorption at 1520 cm-1, C-O-C group which is specific for condensed tannins was observed at 1285 cm-1. Application of 15% tannin as a biomordant without natural dye on Timor woven fabric produced a brownish red color, while the use of 15% tannin and turmeric dye showed a brownish yellow color. Tannin exhibited a better color fastness than metalic mordants in natural dyeing of Timor woven fabrics.
Pemanfaatan Tanaman Lokal Biji Kelor (Moringa Oleifera) sebagai Biokoagulan pada Proses Penjernihan Mata Air di Desa Maurisu Kabupaten Timor Tengah Utara Maria Imaculata Mali; Maria Magdalena Kolo; Marselina Theresia Djue Tea
Saintek Lahan Kering Vol 5 No 2 (2022): JSLK DESEMBER 2022
Publisher : Fakultas Pertanian, Universitas Timor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32938/slk.v5i2.1988

Abstract

This study aims to determine the activity and ability of Moringa oleifera seeds as biocoagulants in reduncing the levels of each water parameters in the drinking water purification process and to determine the optimum concentration od effective biocoagulants to reduce each water parameters in drinking water purification. This research was conducted in the Laboratory of F aperta University Timor Kefamenanu, then further analyzed at the UPTD Health Laboratory of North Central Timor and UPTD Environment Services of Kupang. This study uses coagulation and flocculation methods with 1 treatment and 3 variations in concentration, namely 25 mg/L, 50 mg/L and 100 mg/L. The research material used was Moringa oleifera seed powder and the sample used was water from river springs. Tested parameters, physical parameters include turbidity, pH, temperature, total dissolved solids, total suspended solids. Chemical parameters include hardness, nitrate, nitrite, chlorine and parameters include E.coli and Coliform. The result showed that there was a decrease in each water parameters when Moringa oleifera seed powder was added to the watter sample. The highest percentage value of each water parameter is a decrease of turbidity 70,70%, pH 5,19%, temperatur 3,75%, hardness 37,50%, total dissolved solids 88,40%, total suspended solids 88,40%, chlorine 28%, nitrate 87,27%, nitrite 95%, E.coli 97,99% and Coliform 76,92%. Based on the results and discussion of this study, it can be concluded that biokoagulants of Moringa oleifera seed powder effective in reducing levels of parameters contained in water, both physical parameters, chemical parameter and biological parameters
Co-Authors Akhmad Sabarudin Akhmad Sabarudin Antho Netty Siahaya Azor Yulianus Tefa Benu, Didi Prasetyo Dira Asri Pramita Dira Asri Pramita Djugian Gelyaman, Gebhardus Eduardus Yosef Neonbeni Fransiskus Yulius Dhewa Kadju Gelyaman, Gebhardus Djugian Hanas, Dicky Frengky Hermin Sulistyarti Jefry Presson jefry Presson Jefry Presson Kolo, Maria Magdalena L. D. Moruk Lukas Pardosi Mada, Grandianus Seda Maria Imaculata Mali Matius Stefanus Batu Nensiana Kono Foni, Elfrida Nugraha K. F. Dethan Pramita, Dira Asri R. E. Y. Adu Risna Erni Yati Adu Siahaan, Desta Gloria Welsiliana Welsiliana Yakobus Pffeferius Edvend Saba Agu Yunita Bouk