22 results on '"Anselmus Boy Baunsele"'
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2. Adsorption of Methylene Blue using the Biosorbent of Coconut Fiber Activated by Nitric Acid
- Author
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Anselmus Boy Baunsele, Aloisius Masan Kopon, Erly Grizca Boelan, Maria A. U. Leba, Faderina Komisia, Maria B. Tukan, Maximus M. Taek, Gerardus D. Tukan, Hildegardis Missa, Dwi Siswanta, Johnson N. Naat, and Rahayu Rahayu
- Subjects
Chemistry ,QD1-999 - Abstract
The textile industry in the world keeps increasing, but it harms environmental pollution caused by textile dye waste. Synthetic dyes contain carcinogenic and mutagenic ingredients that can demage the environment and aquatic biota. The alternative to handling dye pollution with a low-cost method is adsorption using nitric acid-activated coconut fiber. Coconut fiber was an abundant agricultural waste and economical, and it had an active site that contained many compounds such as cellulose, lignin, pyroligneous acid, and tannin molecules. This study used the UV-Vis Spectrophotometer analysis method to determine the effect of pH, contact time, and coconut fiber on the adsorption capacity of methylene blue. The result showed that the optimal conditions for adsorption were a pH of 5, a contact time of 75 minutes, and a percentage adsorption of the variation of contact time of 99.628%. The adsorption study was according to a pseudo-second-order reaction with a constant reaction rate of 0.050 g mg-1 minute-1. The maximum adsorption capacity was 2 mg g-1, with the percentage of methylene blue adsorbed at 99.84%. Adsorption occurs chemically with an energy of 35.4 kJ mol-1, so it can be determined that it occurs with a monolayer mechanism.
- Published
- 2024
- Full Text
- View/download PDF
3. The Penggunaan Sabut Kelapa Teraktivasi NaOH sebagai Adsorben Metilen Biru
- Author
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Anselmus Boy Baunsele, Erly Grizca Boelan, Aloisius Masan Kopon, Maximus M. Taek, Gerardus D. Tukan, and Hildegardis Missa
- Subjects
Chemistry ,QD1-999 - 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.
- Published
- 2023
- Full Text
- View/download PDF
4. Improving the pedagogic competence of Pandhega Jaya Christian High School teachers through making learning videos
- Author
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Erly Grizca Boelan, Anselmus Boy Baunsele, Aloisius Masan Kopon, Maria Benedikta Tukan, Maria Aloisia Uron Leba, and Faderina Komisia
- Subjects
learning video, pedagogic competence, training ,Human settlements. Communities ,HT51-65 - Abstract
The development of technology today has had a very significant impact in the world of education, one of which is the creation of innovative learning media so that it can be a solution for teachers in creating a more interesting learning atmosphere. In line with this, teachers must be able to adapt, one of which is increasing their competence, especially pedagogic competence. The objectives of this activity are 1) to improve teacher learning and creativity in preparing media; and 2) solving problems faced by teachers in making learning videos; and 3) introducing software/applications that are easy to use in making learning videos. This service activity was carried out at Pandhega Jaya Christian High School as a partner school. The method of service used is in the form of training. The stages of training activities include: preparation, implementation, monitoring and evaluation. The result of this activity is an increase in the ability of teachers to use technology-based media. This can be seen from the teachers being able to make learning videos using an android/ios-based application, namely Capcut. The whole series of activities went well and the participants looked so enthusiastic and followed the whole series of activities to completion.
- Published
- 2022
- Full Text
- View/download PDF
5. Langmuir and Freundlich Equation Test on Methylene Blue Adsorption by Using Coconut Fiber Biosorbent
- Author
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Anselmus Boy Baunsele and Hildegardis - Missa
- Subjects
langmuir ,freundlich ,biosorben ,methylen blue ,adsorption ,Chemistry ,QD1-999 - Abstract
Methylene blue is a cationic dye often used for various industries. Methylene blue waste harms aquatic biota. Most ways have been done to reduce the methylene blue pollution that includes photocatalytic, electrochemical, and adsorption. This study aimed to reduce the impact of methylene blue pollution on the aquatic environment and to test the adsorption isothermal for methylene blue adsorption using coconut fiber. The abundant coconut fiber waste around the Kupang city was taken and prepared to be used as an adsorbent. The characterization results showed that the active groups in cellulose were clearly described on the FTIR spectra which showed the presence of O-H vibrations at 3296.35 cm-1, C-O vibrations were seen at 1267.23 and 1060.85 cm-1, at wavelengths 1608.63 cm-1 and 817.72 cm-1 there is a vibration from the C=C bond, while the C-H vibration appears at a wavelength of 2939.52 cm-1. The results of this research analysis showed that the adsorption of methylene blue according to the Langmuir isotherm indicated by the value of the equation of the straight line R2 being one and the direction of the curve depicting occurring the effective adsorption. The maximum adsorption capacity was 4.467 mg g-1 with the percentage of methylene blue adsorbed at 99.3%. Adsorption occurs chemically with an energy of 27.29 kJmol-1 so it can be determined that the adsorption occurs with a monolayer mechanism.
- Published
- 2021
- Full Text
- View/download PDF
6. Kinetic Study of Blue Methylene Adsorption Using Coconut Husk Base Activated
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Anselmus Boy Baunsele, Erly Grizca Boelan, Aloisius Masan Kopon, and Rahayu Rahayu
- Subjects
Blue methylene, Adsorption, Kinetic study, Activated, Constant rate ,Chemical engineering ,TP155-156 ,Chemistry ,QD1-999 - Abstract
Blue methylene is a cationic dye. It usually used for various industries. The waste of blue methylene can reduce the environmental balance expecialy for aquatic biota by inhibition the penetration of sunlight to the water. Most natural ingridients and method was used to reduce the existence of the dye. In this research, coconut husk was activated with NaOH solution then used for blue methylene adsorption. The coconut husk activated aims to reduce the polluter on the adsorbent to increase the capacity of adsorption. The study result showed that the optimum adsorption of blue methylene at pH 7 for 75 minutes of adsorption with the capacity adsorption of 1,41 mg g-1. The result of kinetic study described that the adsorption process according to second order pseudo reaction kinetic model with the adsorption constant rate of 2,54 x 10-4 g mg-1 minute-1
- Published
- 2022
7. Phytochemical Screening and TLC Profiling of Combination Extracts of Avocado (Persea americana Mill.) and Papaya (Carica papaya) Leaves from Timor Island
- Author
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Marianus M. Kafelau, Aloisius Masan Kopon, Anselmus Boy Baunsele, Maria Benediktas Tukan, Maria Uron Leba, Faderina Komisia, and Erly Grizca Boelan
- Subjects
Phytochemical Screening, Secondary Metabolite Compounds, Combination Extracts, Thin Layer Chromatography ,Chemical engineering ,TP155-156 ,Chemistry ,QD1-999 - Abstract
Traditionally in the village of Alor, East Nusa Tenggara Province, a combination of avocado and papaya leaves is often used to treat malaria. To be able to be developed as an ingredient in traditional medicine, it is necessary to conduct preliminary research to determine the content of secondary metabolites contained in the combination of avocado and papaya leaves. This study aims to determine the secondary metabolites contained in avocado and papaya leaves through phytochemical screening and Thin Layer Chromatography (TLC) analysis. Extraction was carried out using methanol solvent by maceration, and the extract yield was 91.4%. Testing the content of secondary metabolites in avocado and papaya leaf extracts was carried out by phytochemical screening. Furthermore, the TLC test was carried out to confirm the presence of a positive group of compounds on phytochemical screening, and to determine the chromatographic profile of the extract. After being tested by phytochemical and TLC analysis, the extract contains several metabolites, including flavonoids, alkaloids, tannins, saponins, and steroids. The TLC system used in this study can separate the phytochemical content and give positive results that confirm the results of the phytochemical screening.
- Published
- 2022
8. Identification of Phytochemical Extract of a Combination of Young Coconut Water, Ginger and Turmeric
- Author
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Florentina Saji Hasti, Aloisius Masan Kopon, Anselmus Boy Baunsele, Maria Benedikta Tukan, Maria Aloisia Uron Leba, Erly Grizca Boelan, and Faderina Komisia
- Subjects
Phytochemical screening, physicochemical, extract, secondary metabolites, ethanol ,Chemical engineering ,TP155-156 ,Chemistry ,QD1-999 - Abstract
Turmeric is a tropical plant that is widely found on the Asian continent which is extensively used as a food coloring agent and fragrance. Ginger is a spice plant that it often found in South Asia which is widely has spread throughout the world. Coconut is an annual plant, has a hard stem and is generally not branched (monopodial), has fibrous roots, and contain water that is clear and tastes sweet, young coconut water has benefits such as antibacterial, beauty treatment, as an isotonic agent, and carry out the urination. This research was conducted to obtain information about the physicochemical properties and secondary metabolites contents of the coconut water, ginger and turmeric combination extract. The research method was carried out by mixing the mashed turmeric and ginger with the young coconut water and then macerated. The resulting extract was then tested for physicochemical properties (solubility) and identified groups of secondary metabolites (flavonoids, tannins, saponins, and steroids/triterpenoids. The extract was soluble in 70% ethanol. In addition, the combination of young coconut water, ginger, and turmeric extract contain a group of secondary metabolites among others flavonoids, tannins, saponins, and triterpenoids.
- Published
- 2022
9. Penyesuaian Anggaran Dasar dan Anggaran Rumah Tangga Bumdes Ina Huk Berdasarkan Peraturan Pemerintah Nomor 11 Tahun 2021 dan Peraturan Menteri Desa Pembangunan Daerah Tertinggal dan Transmigrasi Nomor 3 Tahun 2021
- Author
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Paulus Adrianus K. L. Ratumakin, Maria O. Krisdayanti, Adrianus Ketmoen, Anselmus Boy Baunsele, Erly G Boelan, Gerardus Diri Tukan, Maximus M Taek, Maria Augustin Lopes Amaral, Paskalis A Nani, Alfry Aristo Jansen Sinlae, and Priscilla M. A Hornay
- Subjects
General Medicine - Abstract
Badan Usaha Milik Desa (BUMDes) sebelumnya didefinisikan hanya sebagai badan usaha. Namun setelah Undang-Undang Cipta Kerja disahkan, BUMDes merupakan badan usaha yang berbadan hukum. Konsekuensinya ada beberapa perubahan regulasi dan kelengkapan dokumen yang dituntut untuk pengurusan badan hukum BUMDes. Salah satunya yakni penyesuaian Anggaran Dasar (AD)/ Anggaran Rumah Tangga (ART) BUMDes. AD/ART BUMDes merupakan rujukan peraturan dasar dan turunan dalam pengelolaan BUMDes. Tantangan dalam penyusunan AD/ART yakni tidak semua warga desa, bahkan Pemerintah Desa dan Pengurus BUMDes paham proses penyusunan, substansi AD/ART, serta struktur dalam AD/ART. Karena itu, pelatihan penyusunan AD/ART sesuai regulasi baru dibutuhkan untuk memperbaiki, sekaligus menyepakati poin substansial dalam isi AD/ART BUMDes. Kegiatan ini dilakukan di LPPM Universitas Katolik Widya Mandira yang melibatkan 15 orang peserta dari perwakilan pengurus BUMDes Ina Huk, pemerintah desa, BPD, pelaku usaha, tokoh masyarakat, perwakilan perempuan, kaum muda dan warga Desa Mata Air, Kecamatan Kupang Tengah, Kabupaten Kupang. Kata Kunci: BUMDes, Anggaran Dasar, Anggaran Rumah Tangga ABSTRACT Village-owned Enterprises (BUMDes) were previously only defined as business entities. However, after the Job Creation Law was passed, BUMDes is now a legal entity. Consequently, there have been several regulatory changes and the complete documents required for managing BUMDes legal entities. One of them is the adjustment of the BUMDes Statutes (AD)/Bylaws (ART). BUMDes AD/ART is a reference for primary and derivative regulations in BUMDes management. The challenge in preparing AD/ART is that not all villagers, even the Village Government and BUMDes management, understand the drafting process, the substance of AD/ART, and the structure of AD/ART. Therefore, training on drafting AD/ART following the new regulations is needed to improve and, at the same time, agree on essential points in the contents of BUMDes AD/ART. This activity was carried out by the LPPM of Widya Mandira Catholic University which involved 15 participants from BUMDes Ina Huk officials, village government representatives, BPD, business actors, community leaders, women's representatives, youth and residents of Mata Air Village, Kupang Tengah District, Kupang Regency. Keywords: Village-owned Enterprises, Statutes (AD), Bylaws (ART)
- Published
- 2023
10. Pelatihan Laporan Keuangan: Kinerja BUMDes di Desa Tunbaun
- Author
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Adrianus Ketmoen, Maria Bernadthe Mawarni Gelu Wutun, Alfry Aristo Jansen Sinlae, Paulus Adrianus K.L. Ratumakin, Anselmus Boy Baunsele, Erly G. Boelan, Paskalis A. Nani, and Maria Augustin Lopes Amaral
- Abstract
Organisasi yang menggunakan anggaran harus menyediakan pelaporan keuangan secara transparan dan akuntabel kepada pemangku kepentingan utama. Pendirian usaha desa meningkatkan roda perekonomian dalam desa. Usaha desa harus membangun sistem agar saling menguntungkan antar unit bisnis. Tujuan dari Pengabdian Kepada Masyarakat (PKM) ini adalah membuat para pengurus dan pengelola BUMDes menjadi profesional dalam hal mengelola laporan keuangan. Metode kegiatan pengabdian masyarakat berupa ceramah, diskusi, tanya jawab, dan latihan terkait pengelolaan keuangan BUMDes. Peserta pelatihan BUMDes tentang pengelolaan keuangan meliputi kepala desa, lembaga desa, dewan penasihat desa dan pengurus BUMDes di desa Tunbaun. Peserta berperan aktif dalam mengikuti pelatihan ini, minat peserta dalam mempelajari laporan keuangan sangat tinggi. Hasil evaluasi menunjukkan dari aspek materi, ketepatan waktu dan pemateri serta diskusi sudah sesua dengan kebutuhan peserta. Sebagai tindak lanjut keberlanjutan kegiatan ini, maka perlu dilanjutkan dengan praktik secara langsung dan berkala sampai peserta mandiri tanpa didampingi serta memberikan pelatihan dengan menggunakan aplikasi laporan keuangan.
- Published
- 2023
11. Penguatan Kapasitas Pengelolaan BUMDes Di Desa Pariti, Kecamatan Sulamu Kabupaten Kupang-NTT
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Adrianus Ketmoen, Paulus A. K. L. Ratumakin, Alfry A. J. Sinlae, Adri Gabriel Sooai, Hildegardis Missa, Maria Agustin Lopes Amaral, Maximus M. Taek, Gerardus Diri Tukan, Erly G. Boelan, and Anselmus Boy Baunsele
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General Medicine ,General Chemistry - Abstract
Badan Usaha Milik Desa (BUMDes) merupakan suatu badan usaha berbadan hukum, yang bertujuan untuk dapat meningkatkan perekonomian desa khususnya untuk peningkatan kesejahteraan masyarakat. Kegiatan penguatan kapasitas pengelolaan BUMDes dan sharing pengalaman pengelolaannya dalam kegiatan pengabdian pada masyarakat ini, bertujuan untuk dapat memberikan pengetahuan dan pengalaman baru bagi masyarakat. Kegiatan ini dilaksanakan di Desa Pariti, Kecamatan Sulamu, Kabupaten Kupang. Kegiatan ini diikuti oleh 20 oang peserta diantaranya Pemerintah Desa, pengurus BUMDes Gempar dan tokoh masyarakat. Metode pelaksanaan berupa sosialisasi melalui ceramah dan diskusi, sharing pengalaman dengan Kepala Desa Hadakewa serta hasil tes kemampuan (pre test dan post test). Kesimpulan dari hasil kegiatan ini yaitu terdapat peningkatan kemampuan terhadap substansi dan sistem tata kelola BUMDes. Kedepannya kegiatan ini dapat dilanjutkan dengan menghadirkan narasumber-narasumber yang telah sukses mengelola BUMDes
- Published
- 2023
12. Pelatihan Keuangan Bumdes: Penyusunan Proposal Usaha di Kecamatan Kupang Barat
- Author
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Maria Augustin Lopes Amaral, Adrianus Ketmoen, Alfry Aristo J. Sinlae, Erly G. Boelan, Anselmus Boy Baunsele, and Paulus Adrianus K. L. Ratumakin
- Abstract
Badan Usaha Milik Desa (BUMDes) dikategorikan menjadi usaha desa yang berpotensial untuk dikembangkan menjadi penggerak ekonomi desa. Sosialisasi cara menyusun proposal usaha pada kegiatan pelatihan bagi BUMDes dalam rangka kegiatan pengabdian masyarakat berniat untuk menambah pengetahuan dan keterampilan penyusunan proposal usaha. Kegiatan dilaksanakan di Kecamatan Kupang barat pada dua desa yaitu Desa Tablolong dan Desa Oenaek, pesertanya terdiri dari pengurus Badan Usaha Milik Desa (BUMDes), pemerintah desa, Badan Pengawas Desa, tokoh masyarakat, Unit Mikro Kecil Menengah (UMKM), dan kelompok anak muda berjumlah 20 orang. Metode yang digunakan adalah penyampaian materi berupa ceramah, diskusi dan simulasi. Kesimpulan dari hasil kegiatan menunjukkan kegiatan sosialisasi mendorong pengurus BUMDes dan menambah pengetahuan serta keterampilan menyusun proposal usaha. Kegiatan ini kedepannya dapat dilanjutkan dengan pelatihan dan bimbingan teknis dalam penyusunan proposal usaha Kata Kunci: Pelatihan Proposal Usaha, Sosialisasi, Sencana Bisnis ABSTRACT Village Owned Enterprises (BUMDes) is categorized as a village business that has the potential to be developed as a driving force for the village economy. Training on how to prepare business proposals in training activities for BUMDes in the context of community service activities intends to increase knowledge and skills in preparing business proposals. The activity was carried out in West Kupang District in two villages, namely Tablolong Village and Oenaek Village. The participants consisted of BUMDes management, village government, Village Supervisory Board, community leaders, Micro Small Medium Unit (MSMEs), and a group of 20 young people. The method used is the delivery of material in the form of lectures, discussions, and simulations. The results of the activity show that socialization activities encourage BUMDes management and increase their knowledge and skills in preparing business proposals. This activity can be continued in the future with training and technical guidance in the preparation of business proposals. Keywords: Business Proposal Training, Socialization, Business Plan
- Published
- 2022
13. Kinetic Study of Blue Methylene Adsorption Using Coconut Husk Base Activated
- Author
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Dwi Siswanta, Rahayu Rahayu, Aloisius Masan Kopon, Erly Grizca Boelan, and Anselmus Boy Baunsele
- Subjects
General Medicine - Abstract
Blue methylene is a cationic dye. It is usually as in various industries. The waste of blue methylene can reduce the environmental balance, especially for aquatic biota, by inhibiting the penetration of sunlight into the water. The experiment used the most natural ingredients and methods to minimize the existence of the dye. In this research, coconut husk was activated with NaOH solution and then used for blue methylene adsorption. The coconut husk started aims to reduce the pollution of the adsorbent to increase the adsorption capacity. The study result showed the optimum adsorption of blue methylene at pH 7 for 75 minutes of adsorption with the capacity adsorption of 1.41 mg g-1. The development of the kinetic study described the adsorption process according to a second-order pseudo reaction kinetic model with the constant adsorption rate of 2.54 x 10-4 g mg-1 minute-1.
- Published
- 2022
14. Phytochemical Screening and TLC Profiling of Combination Extracts of Avocado (Persea americana Mill.) and Papaya (Carica papaya) Leaves from Timor Island
- Author
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Erly Grizca Boelan, Faderina Komisia, Maria Uron Leba, Maria Benediktas Tukan, Anselmus Boy Baunsele, Aloisius Masan Kopon, and Marianus M. Kafelau
- Subjects
General Medicine - Abstract
Traditionally in the village of Alor, East Nusa Tenggara Province, a combination of avocado and papaya leaves is often used to treat malaria. To be able to be developed as an ingredient in traditional medicine, it is necessary to conduct preliminary research to determine the content of secondary metabolites contained in the combination of avocado and papaya leaves. This study aims to determine the secondary metabolites contained in avocado and papaya leaves through phytochemical screening and Thin Layer Chromatography (TLC) analysis. Extraction was carried out using methanol solvent by maceration, and the extract yield was 91.4%. Testing the content of secondary metabolites in avocado and papaya leaf extracts was carried out by phytochemical screening. Furthermore, the TLC test was carried out to confirm the presence of a positive group of compounds on phytochemical screening, and to determine the chromatographic profile of the extract. After being tested by phytochemical and TLC analysis, the extract contains several metabolites, including flavonoids, alkaloids, tannins, saponins, and steroids. The TLC system used in this study can separate the phytochemical content and give positive results that confirm the results of the phytochemical screening.
- Published
- 2022
15. PEMBELAJARAN QUANTUM TEACHING TERHADAP HASIL BELAJAR SISWA KELAS VII SMP KATOLIK SINT ALOYSIUS NIKI-NIKI KABUPATEN TIMOR TENGAH SELATAN
- Author
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Hildegardis Missa and Anselmus Boy Baunsele
- Abstract
This study aims to determine the effect of the Quantum Teaching model on the learning outcomes of seventh grade students of Sint Aloysius Niki-Niki Catholic Middle School. This type of research is quantitative research with a quasi-experimental method and the research design used is the Nonrandomized Control group Pretest-Posttest Design. The population in this study were all seventh grade students of Sint Aloysius Niki-Niki Catholic Middle School. The data analysis technique used descriptive analysis and inferential analysis. The results showed that the post test score in the experimental class that applied the Quantum Teaching model was higher, namely 86.37 compared to the control class who applied the conventional learning model, namely 69.13. Anacova test results show the calculated F value is 0,000 or less than 0.05. This shows that H0 which states that there is no effect of the Quantum Teaching model on the learning outcomes of seventh grade students of Sint Aloysius Niki-Niki Catholic Middle School is rejected and the consequence is that Ha states that there is an effect of the Quantum Teaching model on the learning outcomes of seventh grade students of SMP Catholic Sint Aloysius Niki Niki accepted. The results of the activities of students who took part in the experimental class were also higher at 90%. compared to the control class, namely 86.65%. And the teacher's ability to manage learning in the experimental class is included in the good category, namely 98.91%.
- Published
- 2021
16. JENIS DAN POPULASI BAKTERI ICE NUCLEATION ACTIVE PENYEBAB LUKA BEKU PADA DAUN JERUK KEPROK SOE DI DATARAN TINGGI MUTIS
- Author
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Anselmus Boy Baunsele and Hildegardis Missa
- Subjects
Plate method ,education.field_of_study ,ice nucleation-active protein class ,food.ingredient ,Ice formation ,biology ,Population ,Nucleation ,ice nucleation-active bacteria ,Bacterial population ,General Medicine ,biology.organism_classification ,lcsh:S1-972 ,Horticulture ,food ,Frost ,frost injury ,mutis plateau ,Agar ,lcsh:Agriculture (General) ,education ,soe tangerine ,Bacteria - Abstract
Research on ice nucleation-active bacteria causes frost injury from tropic areas has not been widely publicized. The purpose of this study was to determine the population of Ice Nucleation-Active Bacteria on Soe tangerines leaves and the class of Ice Nucleation-Active bacteria based on Ice formation temperatures. The collecting of Soe tangerine leaves used the purpose sampling method. Leaves with frost blotches were collected from three stages at altitudes of 1500, 1800, and 2000 meters above sea level (m asl). Bacterial isolation was carried out by the spread plate method on Nutrien Agar 2,5 % glycerol (NAG) media. Ice Nucleation activity was determined by the tube nucleation test method. Estimation of INA bacterial population was conducted by the multiple-tube nucleation test with Thomas series .3.3.3. The result showed that the highest INA bacterial population was 6.9x104 which was found in leaves samples collected from stations 1800 and 2000 m asl, and the lowest population i.e. 5,4x103 on leaf samples from station 1500 m asl. Based on the temperature of ice formation, it was known that INA bacteria that attack the Soe tangerines leaves Mutis plateau are the INA bacteria class B and C.
- Published
- 2020
17. ISOLASI DAN IDENTIFIKASI POPULASI BAKTERI ICE NUCLEATION ACTIVE PADA JERUK KEPROK SOE DI DATARAN TINGGI MUTIS PROVINSI NUSA TENGGARA TIMUR
- Author
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Hildegardis Missa and Anselmus Boy Baunsele
- Abstract
pada Jeruk Keprok Soe di dataran tinggi Mutis ini akan memberikan informasi kebaruan bakteri INA di daerah tropis. Penelitian lanjut mengenai bakteri INA perlu dilakukan, mengingat dampak buruk bagi pertanian akibat luka beku yang disebabkan karena aktivitas ice nucleation. Tujuan dari penelitian ini adalah untuk mengetahui populasi bakteri INA, mengetahui estimasi populasi bakteri INA, uji aktivitas ice Nucleation Active dan mengetahui kelas protein INA. Pengambilan sampel tanaman Jeruk Keprok Soe menggunakan metode purposive sampling pada tiga ketinggian yaitu 2000, 2100, dan 2200 m dpl. Isolasi bakteri dilakukan dengan metode spread plate pada media Kings’B, aktivitas nukleasi es ditentukan dengan metode tube nucleation test. Estimasi populasi bakteri INA dilakukan dengan metode multiple-tube nucleation test formula Thomas seri 3.3.3. Hasil penelitian menunjukan bahwa populasi bakteri INA yang ditemukan pada daun jeruk keprok soe di dataran tinggi mutis tergolong tinggi yaitu 6 x 103/g hingga 1,2 x 104 /g daun. hal ini menunjukkan bahwa semakin tinggi tempat maka semakin tinggi populasi bakteri INA yang ditemukan. Berdasarkan suhu pembentukan es, terdapat dua isolat bakteri , yaitu 2 sampel mengalami pembekuan pada suhu -7oC dengan kelas protein INA B, sedangkan 6 sampel membeku pada suhu -10oC dengan kelas protein INA C.
- Published
- 2019
18. Aplication of Turmeric Rhizome Pigmen as Acid-Base Titration Indicator
- Author
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Maria Aloisia Uron Leba, Aloisius Masan Kopon, Yustina Dwisofiani Lawung, Anjelina Derci Jenimat, Faderina Komisia, Maria Benedikta Tukan, Erly Grizca Boelan, and Anselmus Boy Baunsele
- Abstract
Turmeric rhizome is a source of natural yellow pigment which can be applied as a pH indicator. This pigment was extracted from turmeric rhizomes using ethanol as a solvent. The purpose of this study was to examine the application of turmeric rhizome pigment extract (TRPE) as an indicator to determine the concentration of H+, the precision and accuracy of the use of TRPE as an indicator of acid base titration. As a comparison, in this study used also a standard indicator, such as phenolphthalein (PP) and methyl red (MR). Titration was carried out on samples without spike and spike samples. The result showed that the rendement of TRPE was 35.72%. The concentration of H+ on the sample without spikes in the titration of strong acid-strong base (SASB) and strong acid-weak base (SAWB) using TRPE, PP and MR indicators gave the same result, namely 0.041 M. The concentration of H+ on spike samples in SASB and SAWB titrations using TRPE, PP and MM indicators gave the same result, namely 0.165 M. The use of TRPE in the titration of SASB, SAWB, weak acid-strong base (WASB) and weak acid-weak base (WAWB) provided good precision with the coefficient of variation (CV) obtained in the titration of samples without spikes and titrations of spike samples, respectively are 1.2% and 0.35%, but only give good accuracy in SASB and SAWB titration with the recovery in the range of 102.3%-102.7%.Keywords: accuracy; acid base; precision; titration; turmeric ABSTRAKAplikasi Pigmen Rimpang Kunyit Sebagai Indikator Titrasi Asam-BasaRimpang kunyit merupakan salah satu sumber pigmen kuning alami yang dapat diaplikasikan sebagai indikator pH. Pigmen ini diperoleh dengan cara mengekstraksinya dari rimpang kunyit menggunakan pelarut etanol. Penelitian ini bertujuan untuk mengkaji aplikasi ekstrak pigmen rimpang kunyit (EPRK) sebagai indikator untuk menentukan konsentrasi H+ dalam sampel, presisi dan akurasi dari penggunaan EPRK sebagai indikator titrasi asam basa. Sebagai pembanding maka dalam penelitian ini digunakan pula indikator standar yakni fenolftalin (PP) dan metil merah (MM). Titrasi dilakukan terhadap sampel tanpa spike dan sampel spike. Berdasarkan hasil penelitian diperoleh rendemen EPRK sebanyak 35,72%. Konsentrasi H+ dalam sampel tanpa spike pada titrasi asam kuat-basa kuat (AKBK) dan asam kuat-basa lemah (AKBL) menggunakan indikator EPRK, PP dan MM memberikan hasil yang sama yaitu 0,041 M. Konsentrasi H+ dalam sampel spike pada titrasi AKBK dan AKBL menggunakan indikator EPRK, PP dan MM memberikan hasil yang sama yaitu 0,165 M. Penggunaan EPRK dalam titrasi AKBK, AKBL, asam lemah-basa kuat (ALBK) dan asam lemah-basa lemah (ALBL) memberikan presisi yang baik dengan coefficient of variation (CV) yang diperoleh pada titrasi sampel tanpa spike dan titrasi sampel spike berturut-turut adalah ˂ 1,2% dan ˂ 0,35%, tetapi hanya memberikan akurasi yang baik pada titrasi AKBK dan AKBL dengan recovery yang diperoleh adalah pada kisaran 102,3%-102,7%.Kata Kunci: akurasi; asam basa; presisi; titrasi; kunyit
- Published
- 2022
19. PEMBERDAYAAN GURU DALAM PENGEMBANGAN PERANGKAT PEMBELAJARAN IPA SMP TAHAP LESSON PLAN DALAM SISTIM LSLC
- Author
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Yanti Rosinda Tinenti, Hildegardis Missa, Hironimus Tangi, and Anselmus Boy Baunsele
- Abstract
This PKM is conducted at Sint Vianney Middle School which is located at JLN. I Gusti Ngurah Rai, Kampung Baru Village, Soe City District, TTS Regency, NTT Province. The resulting target is an increase in the ability of teachers to design learning devices that meet the standards of the learning process, improvement in the ability of teachers to develop assessment instruments for aspects of knowledge (KI 3) that include high order thinking skills (High Order Thingking Skill / HOT), skills (KI 4 ), and optimizing the use of practical tools and materials in schools and the surrounding environment in the process of developing learning tools. Activities that have been carried out to achieve the above PKM targets consist of a lesson plan phase in the Lesson Study Learning Community (LSLC) system, namely:1. Planning the PKM activity schedule with the team leader, members and teachers in the school.2. Seminar on the implementation of the LSLC system, development of learning tools, and assessment instruments that meet the process standards and assessment standards in the 2013 curriculum.3. Lesson plan in the Lesson Study Learning Community (LSLC) system. Keywords: Lesson Plan, LSLC, High Order Thingking Abstrak PKM ini dilakukan di SMPK Sint Vianney yang beralamat di JLN. I Gusti Ngurah Rai, Kelurahan Kampung Baru, Kecamatan Kota Soe Kabupaten TTS, Provinsi NTT. Target yang dihasilkan yakni peningkatan kemampuan guru dalam merancang perangkat pembelajaran yang memenuhi standar proses pembelajaran, peningkatan kemampuan guru dalam mengembangkan instrumen penilaian untuk aspek pengetahuan (KI 3) yang mencakup kemampuan berpikir tingkat tinggi (High order Thingking Skill/HOT), keterampilan (KI 4), dan optimalisasi penggunaan alat dan bahan praktikum di sekolah maupun di lingkungan sekitar dalam proses pengembangan perangkat pembelajaran. Kegiatan yang telah dilakukan untuk mencapai target PKM di atas terdiri dari tahap perencanaan (lesson plan) pada sistim Lesson Study Learning Community (LSLC), yakni: Perencanaan jadwal kegiatan PKM bersama ketua tim, anggota dan guru-guru di sekolah. Seminar tentang pelaksanaan sistem LSLC, pengembangan perangkat pembelajaran, dan instrumen penilaian yang memenuhi standar proses dan standar penilaian dalam kurikulum 2013. Tahap Perencanaan (lesson plan) pada sistim Lesson Study Learning Community (LSLC). Kata Kunci : Lesson Plan, LSLC, High Order Thingking.
- Published
- 2019
20. Kajian Kinetika Adsorpsi Metilen Biru Menggunakan Adsorben Sabut Kelapa
- Author
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Anselmus Boy Baunsele and Hildegardis Missa
- Subjects
General Engineering ,General Earth and Planetary Sciences ,General Environmental Science - Abstract
Metilen biru merupakan zat warna yang digunakan secara luas dalam berbagai industri namun memiliki dampak negatif terhadap lingkungan. Tujuan penelitian ini adalah untuk mengurangi dampak pencemaran metilen biru pada lingkungan air. Sabut kelapa yang diambil dari pedagang kaki lima di Kota Kupang dijadikan adsorben untuk adsorpsi metilen biru. Hasil penelitian menunjukkan bahwa adsorpsi metilen biru terjadi secara optimal pada pH 7 selama 75 menit adsorpsi dengan persentase adsorpsi sebesar 99,14%. Hasil analisis kinetika reaksi adsorpsi menunjukkan bahwa adsorpsi metilen biru menggunakan adsorben sabut kelapa mengikuti model kinetika reaksi pseudo orde dua dengan laju konstanta adsorpsi sebesar 0,01 gram mg -1 menit -1 .
- Published
- 2020
21. Upaya Peningkatan Pemahaman Terhadap Bahaya Sampah Plastik Dan Pengolahannya Bagi Siswa-Siswi SMA Negeri 3 Kota Kupang, Nusa Tenggara Timur
- Author
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Christiani Dewi Q. M. Bulin, Anselmus Boy Baunsele, and Hildegardis Missa
- Subjects
Sociology ,Humanities - Abstract
Plastic waste is a topic that is always discussed in academic studies, especially regarding for the environment. Plastic waste causes natural damage whether it is biotik or abiotik environment. Lack of understanding of the plastic waste dangers caused tless of the environment concern. This is illustrated by the behavoir of throwing plastic waste not on the rubbish bin. By the socialization of plastic waste education and its utilization, it is expected can improve the intellectual understanding about the risk of plastic waste. This activity was initiated by a group of young people in the Kupang city whose joined to the community of "Saya Pilih Bumi" in Kupang regional by involving speakers from Widya Mandira Catholic University of Kupang City. The method of carrying out the socialization activities is by surveying and requesting permission to the school, then two activities are carried out there are education of plastic waste and plastic waste treatment. The success of these program was indicated by the students enthusiasm in the discussion session and the results of processing plastic waste yield some goods like flower pots, pencil cases and other accessories.abstrakSampah plastik adalah topik yang selalu dibahas dalam studi akademik, terutama mengenai lingkungan. Sampah plastik menyebabkan kerusakan alam baik itu lingkungan biotik atau abiotik. Kurangnya pemahaman tentang bahaya limbah menyebabkan kepedulian yang rendah terhadap lingkungan. Hal ini digambarkan oleh kebiasaan membuang sampah tidak pada tempatnya. Melalui kegiatan edukasi sampah plastik dan pemanfaatannya, diharapkan dapat menumbuhkan kesadaran intelektual akan bahaya sampah plastik. Kegiatan ini diprakarsai oleh sekelompok anak muda di kota Kupang yang tergabung dalam komunitas "Saya Pilih Bumi" regional Kupang dengan melibatkan pembicara dari Universitas Katolik Widya Mandira Kupang. Metode pelaksanaan kegiatan sosialisasi adalah dengan melakukan survey dan meminta izin ke sekolah mitra, Kemudian dilakukan dua kegiatan yaitu edukasi sampah dan pengolahan sampah plastik. Indikator ketercapaian pelaksanaan kegiatan ini adalah antusiasme siswa dalam sesi diskusi dan hasil pengolahan sampah plastik dalam bentuk fas bunga, tempat pensil dan aksesoris lainnya.
- Published
- 2020
22. Skrining Senyawa Metabolit Sekunder Ekstrak Metanol Biji Alpukat (Persea Americana Mill.) Asal Pulau Timor
- Author
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Anselmus Boy Baunsele, Aloisius Masan Kopon, and Erly Grizca Boelan
- Subjects
Persea ,biology ,Traditional medicine ,Chemistry ,General Engineering ,food and beverages ,Secondary metabolite ,biology.organism_classification ,Terpenoid ,Phytochemical ,Maceration (wine) ,medicine ,General Earth and Planetary Sciences ,General Environmental Science ,Research method ,medicine.drug - Abstract
Avocados ( Persea americana Mill.) have many benefits for traditional medicine especially in East Nusa Tenggara. The purpose of this study was to analyze the secondary metabolite compounds contained in avocado seeds and to identify groups compounds in avocado seeds extract. The research method used was maceration of samples for 3 days and continued with phytochemical dan FT-IR test. The result showed that methanol extract of avocado seeds contains phytochemicals based on test result of secondary metabolites, the alkaloids, flavonoids, steroids, terpenoids, saponins and tannins. While the results of FT-IR analysis showed the presences of OH, CH, C=C, and C-O groups.
- Published
- 2020
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