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<![CDATA[OPTIMASI PEMBUATAN FURFURAL DARI TEMPURUNG KEMIRI (Aleurites moluccana) MELALUI HIDROLISIS ASAM ]]>
<![CDATA[Maria Angelina Tuas]]>
<![CDATA[ Purifikasi Vol 17 No 2 (2017): Jurnal Purifikasi ]]>
Publisher : <![CDATA[Department of Environmental Engineering-Faculty of Civil, Environmental and Geo Engineering. Institut Teknologi Sepuluh Nopember, Surabaya ]]>
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DOI: 10.12962/j25983806.v17.i2.358
<![CDATA[Telah dilakukan penelitian tentang pembuatan furfural dari tempurung kemiri melalui hidrolisis asam. Penelitian ini bertujuan untuk optimasi pembuatan furfural melalui hidrolisis pentosan tempurung kemiri. Tahap penelitian meliputi preparasi sampel, pembuatan furfural dengan metode refluks disertai variasi katalis dan waktu pemanasan, pembuatan furfural metode destilasi dan analisis spektroskopi. Hasil penelitian menunjukkan bahwa kemurnian furfural yang diperoleh sebesar 99,88% pada kondisi optimum 30% asam sulfat dan direfluks selama 5 jam.]]>
<![CDATA[Analisis Kualitas Air pada Genangan Air Hujan sebagai Konsumsi Hewan Ternak di Desa Teba Timur Kabupaten Timor Tengah Utara ]]>
<![CDATA[Made Santiari]]>;
<![CDATA[Maria Angelina Tuas]]>
<![CDATA[ Bioscientist : Jurnal Ilmiah Biologi Vol 9, No 2 (2021): December ]]>
Publisher : <![CDATA[Department of Biology Education, FSTT, Mandalika University of Education, Indonesia. ]]>
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DOI: 10.33394/bioscientist.v9i2.4421
<![CDATA[East Teba Village has limited water availability due to the relatively long duration of the dry season, so the villagers use rainwater puddles for various activities, including consumption (source of drinking water) for livestock. This study aims to determine the quality of water in puddles of rainwater for consumption (source of drinking water) livestock. This research is quantitative descriptive. The sampling point of the test is the point where livestock drink water. Sampling test based on SNI 6989.57:2008 regarding the method of sampling surface water. The test result data is compared with the quality standard and the quality status is calculated using the pollution index method. The results showed that the TSS value had exceeded the class 2 and class 3 quality standards, while the BOD value had exceeded the class 2 quality standard and still met the class 3 quality standard. The parameter index value obtained was 2.20 which was classified as lightly polluted. The water in the puddle cannot be consumed by livestock, because the water does not meet the quality standard based on the calculation of the quality status using the pollution index method.]]>
<![CDATA[Serapan dan Efisiensi Penyerapan Hara N dan P Pada Pakcoy (Brassica rapa L. Ssp. Chinensis) Sistem Vertikultur di Lahan Kering ]]>
<![CDATA[Wilda Lumban Tobing]]>;
<![CDATA[Eduardus Yosef Neonbeni]]>;
<![CDATA[Asep Ikhsan Gumelar]]>;
<![CDATA[Maria Angelina Tuas]]>;
<![CDATA[Rolinus Sabuna]]>
<![CDATA[ Agrosains : Jurnal Penelitian Agronomi Vol 24, No 1 (2022): Agrosains: Jurnal Penelitian Agronomi ]]>
Publisher : <![CDATA[Universitas Sebelas Maret ]]>
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DOI: 10.20961/agsjpa.v24i1.59912
<![CDATA[Pakcoy cultivation in dry land is still not optimal due to the growing environment that requires technology. Fertigation verticulture is used as an effort to increase pakcoy production in dry land. The purpose of this study was to determine the fertigation time, composition of planting media and the distance between planting holes and their interactions in increasing nutrient uptake and efficiency of N and P absorption for pakcoy plants on the vertical fertigation system. This research was carried out in the agricultural garden of the Main Seed Center of the North Central Timor Regency Agriculture Office from June to December 2021. The study used an experimental method with a Separate Plot Design with 3 plots where the main plot was the fertigation time which consisted of 3 levels, namely W1 (60 seconds). ), W2 (90 seconds), and W3 (120 seconds). The main subplot is the composition of the growing media which consists of 4 levels, namely: M1 (Soil: Sand (1:1)); M2 (Soil: Biochar (1:1)); M3 (Soil: Biochar (1:1)); and M4 (Soil: Sand: Biochar (1:1:1)). The subplots are the spacing of the planting holes consisting of 3 levels, namely: J1 (15 cm); J2 (20 cm); and J3 (25 cm). There were 36 treatments which were repeated 4 (four) times in order to obtain a total of 144 treatments. Data analysis used a comparative test using the Duncan Multiple Range Test method at 5% level. The results showed that the fertigation time of 120 seconds (W3) and the composition of the growing media: biochar (1:1) (M2) and their interactions increased the N and P uptake of pakcoy plants grown in a verticulture system on dry land by treatment. The fermentation time of 120 seconds (W3) and the composition of the growing media: biochar (1:1) (M2) also increased the efficiency of N and P nutrient absorption.]]>
<![CDATA[EFEK UJI RESIDU KOMPOS BIOCHAR DAN IRIGASI TETES TERHADAP PERTUMBUHAN SERTA HASIL TANAMAN PAKCOY (Brassica rappa L.) PADA TANAH ENTISOL ]]>
<![CDATA[Magdalena Sunarty Pareira]]>;
<![CDATA[Maria Angelina Tuas]]>;
<![CDATA[Antonius Rivaldo Jehalu]]>
<![CDATA[ Agros Journal of Agriculture Science Vol 24, No 2 (2022): edisi Juli ]]>
Publisher : <![CDATA[Fakultas Pertanian, Universitas Janabadra ]]>
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DOI: 10.37159/jpa.v24i2.1927
<![CDATA[Untuk mengetahui pengaruh uji residu media tanam dan penyiraman irigasi tetes dan untuk mendapatkan takaran kompos biochar dan pengaturan penyiraman yang tepat untuk pertumbuhan tanaman pakcoy pada tanam kedua di tanah entisol. Penelitian dilaksanakan pada bulan Oktober 2021 sampai Januari 2022 di rumah kaca Fakultas Pertanian Universitas Timor, Kabupaten Timor Tengah Utara. Menggunakan rancangan acak lengkap faktorial yang terdiri dari dua faktor. Faktor pertama terdiri dari tiga taraf yaitu 100% tanah entisol (BT0), kompos biochar 25% + tanah entisol 75% (BT1) dan kompos biochar 75% + tanah entisol 25% (BT2). Sedangkan faktor kedua terdiri dari 3 taraf yakni pengaturan penyiraman rutin pagi dan sore (P0), penyiraman rutin pagi (P1) dan penyiraman rutin sore (P2), yang diulang sebanyak 4 kali. Hasil penelitian menunjukkan dengan pemberian kompos biochar dengan takaran 25% kompos biochar + 75% tanah entisol dan 75% kompos biochar + 25% tanah entisol dengan pengaturan penyiraman rutin pagi sore memberikan hasil terbaik.]]>
<![CDATA[Pengaruh Komposisi Media Tanam dan Frekuensi Penyiraman Air terhadap Pertumbuhan dan Hasil Tanaman Pakcoy (Brassica rapa L.) ]]>
<![CDATA[Maria Odilia Bou Seran]]>;
<![CDATA[Maria Angelina Tuas]]>;
<![CDATA[Magdalena Sunarty Pareira]]>;
<![CDATA[Asep Ikhsan Gumelar]]>
<![CDATA[ Savana Cendana Vol 7 No 03 (2022): Savana Cendana (SC) - July 2022 ]]>
Publisher : <![CDATA[Fakultas Pertanian, Universitas Timor ]]>
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DOI: 10.32938/sc.v7i03.1556
<![CDATA[The composition of the growing media and the frequency of watering can be used as a way to increase the productivity of pakcoy plants. A study was conducted to determine the effect of planting media composition and frequency of watering on the growth and yield of pakcoy (Brassica Rapa L.) on entisol soil in the greenhouse of the Faculty of Agriculture, the University of Timor in April to August 2021 using a factorial completely randomized design consisting of two factors which were repeated 4 times. The first factor consisted of 3 levels, namely soil without biochar compost (K0), 50% biochar compost + 50% entisol soil, (K1), and 75% biochar compost + 25% entisol soil (K2). The second factor consisted of 3 levels, namely the frequency of routine watering in the morning and evening (F0), the frequency of watering every 2 days in the morning and evening (F1), watering every 4 days in the morning and evening (F2). The results showed that the treatment of planting media and the frequency of watering had a significant effect on each parameter and positively interacted with the parameters of the degree of soil acidity. Treatment of planting media dose of 50% biochar compost + 50% entisol soil was the best treatment in increasing the growth and yield of pakcoy plants. The frequency of watering for 4 days in the morning and afternoon was the best treatment in increasing the growth and yield of pakcoy plants.]]>
<![CDATA[Efektivitas Waktu Pengeringan Udara Alamiah terhadap Kualitas Lempuyang (Zingiber zerumbet) Menggunakan Tipe Pengeringan Batch Dryer ]]>
<![CDATA[Hyldegardis Naisali]]>;
<![CDATA[Martha Kore]]>;
<![CDATA[Maria Angelina Tuas]]>
<![CDATA[ Savana Cendana Vol 7 No 02 (2022): Savana Cendana (SC) - April 2022 ]]>
Publisher : <![CDATA[Fakultas Pertanian, Universitas Timor ]]>
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DOI: 10.32938/sc.v7i01.1574
<![CDATA[This research was conducted from August to September 2021 at the Faculty of Agriculture, University of Timor and quality analysis at the Laboratory of Mathematics and Natural Sciences, Widya Mandira Catholic University, Kupang. The purpose of this study was to determine the effectiveness of natural air drying time on the quality of lempuyang (Zingiber Zerumbet) which was dried using a batch dryer, and to determine the content of flavonoid compounds and tannins in lempuyang using natural air drying. In this study, the total weight of lempuyang tuber slices was 60 kg which was obtained from Noepesu Village, West Miomaffo District, using a drying time of 5 hours, 10 hours and 15 hours. This study is an experimental study designed using a single factor Completely Randomized Design with drying time (A) treatment consisting of 3 levels, namely drying time of 5 hours (A1), 10 hours (A2) and 15 hours (A3) and repeated 2 times. so there are 6 treatment units. Drying was carried out with a thickness of 3 mm. The results showed that the drying time of lempuyang (Zingiber zerumbet) affected the levels of flavonoids and tannins contained in it. The optimum drying time is found at 5 hours of drying with a flavonoid content of 507.96 mg/g and a tannin content of 99.29 mg/g with a final moisture content of 9.19% ww. The best drying time is at 5 hours of drying where the highest flavonoid content is 507.96 mg/g.]]>
<![CDATA[Efektivitas Waktu Pengeringan Udara Alamiah terhadap Kualitas Sarang Semut (Myrmecodia tuberosa) Menggunakan Tipe Pengeringan Batch Dryer ]]>
<![CDATA[Junita Magdalena Seuk]]>;
<![CDATA[Jefrianus Nino]]>;
<![CDATA[Maria Angelina Tuas]]>
<![CDATA[ Savana Cendana Vol 7 No 04 (2022): Savana Cendana (SC) - October 2022 ]]>
Publisher : <![CDATA[Fakultas Pertanian, Universitas Timor ]]>
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DOI: 10.32938/sc.v7i04.1576
<![CDATA[Ant nest (Myrmecodia tuberosa) is one of the plants that which contains flavonoids, tannins and polyphenols which functions as an antioxidant. One of the post-harvest handling technologies in maintaining the quality of the material that is drying. In the area of Timor natural air very potential in the drying process, because it is environmentally friendly and free. This study aims to determine the effectiveness of time natural air drying on the quality of ant nests using batch dryer drying and knowing the content of phytochemical compounds (flavonoids and tannins). This research is an experimental research designed using a single factor Completely Randomized Design with time variable drying (A) which consists of 3 levels, namely the drying time of 5 hours (A1), 10 hours (A2) and 15 hours (A3) and repeated 2 times so that there are 6 units treatment. Drying is carried out with a thickness of 2 mm. slices of ant nests mm. Determination of flavonoid content and tannin content was determined by the method quantitative. Based on the results of the study, 10 hours of drying produced levels of The highest flavonoid was 45.59 mg/g and the tannin content was 94.29 mg/g with the final water content is 26.04% bw. The content of phytochemicals (flavonoids and tannins) in ant nests, namely before drying with flavonoid content of 42.59 mg/g, 5 drying hours with 33.59 mg/g flavonoid content, 10 hours drying with flavonoid content of 45.06 mg/g and at 15 hours of drying with a concentration of flavonoids 20.42 mg/g.The tannin content before drying was 106.88 mg/g, 5 hours of drying with a tannin content of 74.55 mg/g, 10 hours of drying with tannin content was 94.29 mg/g, and at 15 hours of drying it was 92.62 mg/g.]]>
<![CDATA[Pertumbuhan tanaman pakcoy (Brassica rapa subsp. chinensis) sistem vertikultur dengan fertigasi di lahan kering ]]>
<![CDATA[Eduardus Yosef Neonbeni]]>;
<![CDATA[Wilda Lumban Tobing]]>;
<![CDATA[Asep Ikhsan Gumelar]]>;
<![CDATA[Maria Angelina Tuas]]>;
<![CDATA[Rolinus Sabuna]]>
<![CDATA[ ]]>
Publisher : <![CDATA[Fakultas Pertanian Universitas Yudharta Pasuruan ]]>
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DOI: 10.35891/agx.v13i2.2961
<![CDATA[Introduction: This study aimed to determine the growth of pakcoy at the time of fertigation and the composition of the verticulture system planting media with different spacing of planting holes and their interactions on dry land. Methods: The method used is an experiment using a Split Plot Design using 3 plots. The main plot is the spacing of the planting holes consisting of 15 cm, 20 cm, and 25 cm. The subplot is the composition of the growing media consisting of soil:sand, soil:biochar; sand:biochar; and soil:sand:biochar. The sub-sub plot is fertigation time which consists of 60 seconds, 90 seconds, and 120 seconds. A total of 36 treatments were repeated 2 times for a total of 72 treatments. Results: Results: The results of this study showed that the interaction of fertigation time significantly affected the growth of plant height, number of leaves and fresh weight of crown with the best combination treatment of 120 seconds of fertigation time with soil:biochar growing media. Fertigation time has a significant effect on all observation parameters, with the best treatment being fertigation for 120 seconds. The composition of the growing media had a significant effect on the observations of plant height, the number of leaves, and the fresh weight of the crown with the best results found in soil: biochar growing media (1:1). Conclusion: The best combination result is a fermentation time of 120 seconds and the composition of soil and biochar (W3M2).]]>
<![CDATA[Analisis dan Sosialisasi Kesadahan Total Air Sumur Desa Sekon Kecamatan Insana Kabupaten Timor Tengah Utara – NTT ]]>
<![CDATA[Madalena Da Costa]]>;
<![CDATA[Maria Angelina Tuas]]>
<![CDATA[ Jurnal Altifani Penelitian dan Pengabdian kepada Masyarakat Vol. 2 No. 5 (2022): September 2022 - Jurnal Altifani Penelitian dan Pengabdian kepada Masyarakat ]]>
Publisher : <![CDATA[Indonesian Scientific Journal ]]>
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DOI: 10.25008/altifani.v2i5.285
<![CDATA[Air tanah sebagai salah satu sumber daya air yang dimanfaatkan masyarakat untuk memenuhi kebutuhan air bersih, dipertimbangkan harus aman dan bebas dari pencemar fisik, kimia dan biologi. Kajian ini bertujuan menganalisis kesadahan total dalam sumur gali warga Desa Sekon Kecamatan Insana Kabupaten TTU yang secara eksisting memiliki rasa asin dan berkapur. Hal ini menjadi masalah bagi masyarakat Desa Sekon dalam kebutuhan air minum. Metode penentuan titik lokasi sampling dilakukan secara purposive sampling pada tiga (3) titik lokasi. Selanjutnya analisis kesadahan total dilakukan sesuai SNI 06-6989.12:2004 yaitu analisis secara titrimetri. Hasil analisis menunjukkan bahwa total kesadahan untuk sumur 1 sebesar 315 mg/l; sumur 2 sebesar 1.025 mg/l; dan sumur 3 sebesar 685 mg/l. Berdasarkan standar baku mutu air minum menurut Peraturan Menteri Kesehatan (PERMENKES) nomor 492 Tahun 2010 tentang persyaratan kualitas air minum bahwa standar maksimal kadar kesadahan adalah dalam air adalah 500 mg/L, maka kandungan kesadahan total dalam sampel lokasi sumur 1 masih berada di bawah standar baku mutu. Sedangkan lokasi sumur 2 dan sumur 3 masuk dalam kategori tidak layak dimanfaatkan untuk air minum karena memiliki konsentrasi >500 mg/l. Hasil yang diperoleh ini kemudian disosialisasikan kepada masyarakat bahwa sumur lokasi 1 masih layak dan aman digunakan sebagai air minum. Sumur lokasi 2 dan 3 diperlukan pengolahan air sebelum dimanfaatkan sebagai sumber air bersih untuk air minum.]]>
<![CDATA[Identifikasi Sifat Kimia Tanah Entisol di Lahan Kering Desa Sekon Kecamatan Insana Kabupaten Timor Tengah Utara – NTT ]]>
<![CDATA[Maria Angelina Tuas]]>;
<![CDATA[Krisantus Tri Pambudi Raharjo]]>;
<![CDATA[Origenes Boy Kapitan]]>
<![CDATA[ Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 10 No 2 (2022): September ]]>
Publisher : <![CDATA[Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia ]]>
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DOI: 10.24843/JBETA.2022.v10.i02.p22
<![CDATA[Abstrak Kandungan unsur hara mempengaruhi kesuburan tanah dan produktivitas pertanian. Sebagian besar lahan pertanian di Desa Sekon mengalami gagal panen. Unsur hara dibutuhkan untuk mendukung pertumbuhan dan perkembangan tanaman dalam jumlah tertentu sehingga dilakukan analisis kandungan unsur hara untuk mengetahui kesesuaiannya terhadap pertanian. Penelitian ini mengidentifikasi sifat kimia tanah entisol di Desa Sekon, Kecamatan Insana, Kabupaten Timor Tengah Utara, NTT. Penelitian ini merupakan penelitian deskriptif kualitatif yang bertujuan menyajikan gambaran mengenai keadaan kimia tanah entisol di Desa Sekon menggunakan metode survei dan dianalisis laboratorium. Hasil penelitian menunjukkan bahwa kadar bahan organik tergolong rendah dengan persentase rata-rata berkisar antara 0,09 – 1,4%. Status keasaman tanah cenderung netral sampai alkalin dengan pH rata-rata 7,32. Kandungan C-organik bervariasi dari sangat rendah sampai rendah dengan persentase nilai rata-rata 0,57 %. Kandungan N-total sangat rendah dengan persentase rata-rata 0,09 %. . Kandungan P tergolong sangat rendah sampai sedang dan kalium tergolong sangat rendah sampai rendah dengan rata-rata 0,34 me/100 g. Abstract Nutrient content affects soil fertility and agricultural productivity. Most of the agricultural land in Sekon Village experienced crop failure. Nutrients were needed to support plant growth and development in a certain amount so the analysis of the nutrient content was carried out to determine their suitability for agriculture. This study identified entisol soils in Sekon Village, Insana District, North Central Timor Regency, NTT. This research was a qualitative descriptive study aiming to present an overview of the chemical state of the entisol soil in Sekon Village using survey methods and laboratory analysis. The results showed the organic matter content was low with an average percentage ranging from 0.09 to 1.4%. Soil acidity status tends to be neutral to alkaline with an average pH of 7.32. The content of C-organic varied from very low to low with an average of 0.57%. The content of N-total was very low with an average percentage of 0.09%. P content was classified as very low to moderate and potassium was classified as very low to low with an average of 0.34 me/100 g.]]>
