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All Journal Jurnal Ilmu Dasar BERKALA SAINSTEK Jurnal Matematika & Sains Jurnal Ilmu-Ilmu Peternakan (Indonesian Journal of Animal Science) UNEJ e-Proceeding Warta Pengabdian Indonesian Chimica Letters InSTEM
I Nyoman Adi Winata
Jurusan Kimia, Fakultas Matematika Dan Ilmu Pengetahuan Alam, Universitas Jember (UNEJ)
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Control & Systems Engineering Education Mathematics Physics Other

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Beberapa Senyawa Stilbenoid Dari Kulit Batang Shorea Leprosula Miq. I Nyoman Adi Winata; Yana Maolana Syah; Sjamsul Arifin Achmad; Euis Holisotan Hakim; Lia Dewi Juliawaty; Emilia L Ghisalberti; M I Choudhary
Jurnal Matematika & Sains Vol 8, No 1 (2003)
Publisher : Institut Teknologi Bandung

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Abstract

Three stilbenoid compounds, hopeaphenol (1), laevifonol (2), dan (+)-α-viniferin (3) had been isolated from acetone extract of the stem bark of Shorea leprosula Miq. The molecular structures of (1), (2), and (3) was determined based on spectroscopic data, including UV, IR, 1H NMR, and 13C NMR, and comparison with that reported in the literature.
The Influence of Supplementary Feeding (Probiotic and Azolla pinnata) on Protein and Amino Acids Content in Patin Fish Oktavianawati, Ika; Hermiastuti, Meirinda; Rahmawati, Novita; Handayani, Wuriyanti; Winata, I Nyoman Adi
UNEJ e-Proceeding Indonesian Protein Society (IPS), International Seminar and Workshop 2014
Publisher : UNEJ e-Proceeding

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Abstract

One of the important factors in fish farming is feeding. Feed intake is able to affect the growth and production of fish, especially on nutritional content such as protein. In this research, Patin (Pangasius djambal), a catfish, were given variations in feed, i.e pellets only (P1) as a control; pellets and probiotic (P2); pellets and Azolla pinnata (P3). A. piñata (known locally as matalele) is a water plant that has complete essential amino acids including threonine, valine, methionine, isoleucine, leucine, phenylalanine, lysine, histidine, arginine and tryptophan. Probiotic is living microbial cells that affects the speed of feed fermentation and helps the absorption of food in the gastro intestinal tract. The results show that P2 gains more weight than P1 and P3. This feed variations also give different levels of crude protein in fish meat P1, P2, and P3 that are in the order 14.62%; 15.74%; and 13:35%. Based on the results of LC-MS analysis, the amount and the dominant amino acids content in the protein of P1, P2, and P3 are 13 amino acids–aspartic acid; 13 aminoacids–glutamic acid; and 14 amino acids and is predominantly asparagine. Keywords: protein, amino acid, patin, probiotic, Azolla pinnata
The Influence of Supplementary Feeding (Probiotic and Azolla pinnata) on Protein and Amino Acids Content in Patin Fish Ika Oktavianawati; Meirinda Hermiastuti; Novita Rahmawati; Wuriyanti Handayani; I Nyoman Adi Winata
UNEJ e-Proceeding Indonesian Protein Society (IPS), International Seminar and Workshop 2014
Publisher : UPT Penerbitan Universitas Jember

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Abstract

One of the important factors in fish farming is feeding. Feed intake is able to affect the growth and production of fish, especially on nutritional content such as protein. In this research, Patin (Pangasius djambal), a catfish, were given variations in feed, i.e pellets only (P1) as a control; pellets and probiotic (P2); pellets and Azolla pinnata (P3). A. piñata (known locally as matalele) is a water plant that has complete essential amino acids including threonine, valine, methionine, isoleucine, leucine, phenylalanine, lysine, histidine, arginine and tryptophan. Probiotic is living microbial cells that affects the speed of feed fermentation and helps the absorption of food in the gastro intestinal tract. The results show that P2 gains more weight than P1 and P3. This feed variations also give different levels of crude protein in fish meat P1, P2, and P3 that are in the order 14.62%; 15.74%; and 13:35%. Based on the results of LC-MS analysis, the amount and the dominant amino acids content in the protein of P1, P2, and P3 are 13 amino acids–aspartic acid; 13 aminoacids–glutamic acid; and 14 amino acids and is predominantly asparagine. Keywords: protein, amino acid, patin, probiotic, Azolla pinnata
Cellulose Acetate Membranes characters Due To Additions Additive Monosodium Glutamate (MSG) Dwi Indarti; I Nyoman Adi Winata; Heny Yunita Novianti
Jurnal ILMU DASAR Vol 14 No 1 (2013)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (607.762 KB) | DOI: 10.19184/jid.v14i1.479

Abstract

This study purposed to determine the effect of MSG on the character of cellulose acetate membranes. This membrane preparation using phase inversion technique. The results showed that the higher the concentration of MSG, which is the character of membrane permeability coefficients and higher water flux, whereas for the character of the membrane density test and 100-200 kDa dextran rejection further down. To test the FTIR proved that there are no additives or solvents are trapped in a membrane. Keywords : Cellulose Acetate, phase inversion, MSG, FTIR  
Antifeedant Activity from Leaves Extract of Aglaia ganggo Miq on Spodoptera litura Purwatiningsih Purwatiningsih; I Nyoman Adi Winata
Jurnal ILMU DASAR Vol 14 No 1 (2013)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (175.851 KB) | DOI: 10.19184/jid.v14i1.475

Abstract

The different fraction extracts (viz methanol, dichlorometana, n-hexane, ethylacetate, and aceton) obtained from leaves of Aglaia ganggo Miq were investigated for antifeedant activity against Spodoptera litura. All extract fractions showed antifeedant activity with aceton fraction exhibited the highest antifeedant activity at 1 ppm concentration. Only hexane fraction showed a dose dependent concentration while the other fractions exhibited the opposite respond.Keywords : Antifeedant, Aglaia ganggo, extract, fraction
The effect of fish hydrolysate addition to the standard feed and its storage duration to the total content of nitrogen in the excreta of laying chicken Achmad Sjaifullah; Nanda Letitia Ivana; I Nyoman Adi Winata; Ika Oktavianawati
Jurnal Ilmu-Ilmu Peternakan (Indonesian Journal of Animal Science) Vol 29, No 3 (2019): Desember
Publisher : Faculty of Animal Science, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jiip.2019.029.03.01

Abstract

The aim of this study is to determine the effect of the addition of fish hydrolyzate with variuos concentration to the standard feed and feed storage duration towards the decrease of odor by observing total nitrogen content in the excreta of laying chicken. 108 laying chicken aged forty-six weeks were divided into 12 (twelve) treatment combination. Each treatment consists of 9 (nine) laying chickens. All the laying chickens were kept in a battery cage and were fed with commercial standard feed which was added with fish hydrolysate in three different concentrations (0; 1; and 2%) during the 5-day feeding treatment period. Each standard feed which was added with different concentrations of fish hydrolysate were stored for a number of different day variations (0; 5; 10; and 15 days) before being fed to the laying chickens . The variables analyzed were water content and total nitrogen content in the excreta. Results showed that the total nitrogen content in the excreta was not affected (sig> 0.05) by the duration of feed storage but was significantly affected (sig <0.05) by the addition of fish hydrolyzate with different concentration. The use of fish hydrolyzate in 1-2%  concentration reduce the levels of water content and total nitrogen content of laying chicken excreta.
Pelatihan Ketrampilan Menggambar Molekul dan Alat Kimia Menggunakan Chemsketch Bagi Guru-Guru Anggota MGMP Kimia Kabupaten Jember I Nyoman Adi Winata; Yudi Aris Sulisitiyo; Suwardiyanto Suwardiyanto
Warta Pengabdian Vol 14 No 2 (2020): Warta Pengabdian
Publisher : LP2M Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/wrtp.v14i2.9888

Abstract

Permasalahan yang dihadapi oleh guru-guru anggota MGMP Kimia di Kabupaten Jember adalah kesulitan dalam menggambar bentuk molekul saat menyusun bahan ajar dan LKS. Selain itu, kurangnya fasilitas peralatan gelas sebagai alat peraga di laboratorium menyebabkan proses belajar mengajar menjadi tidak maksimal. Oleh karena itu, tujuan kegiatan adalah memberikan pelatihan penggunaan program Chemsketch yang dapat digunakan untuk menggambar bentuk molekul dan visualisasinya dalam bentuk 3 dimensi, serta gambar perlatan gelas beserta informasi nama dan kegunaannya. Bentuk kegiatan yang dilakukan adalah tutorial dan praktik menggambar langsung yang diikuti oleh 25 orang guru anggota MGMP Kimia yang berasal dari SMA/SMK negeri dan swasta di wilayah Jember. Pengukuran keberhasilan program dilakukan dengan memberikan evaluasi akhir untuk menggambar struktur molekul dan peralatan laboratorium yang telah ditentukan menggunakan Chemsketch. Hasil yang diperoleh menunjukkan bahwa secara umum peserta pelatihan telah berhasil menggunakan program Chemsketch dengan baik. Namun dekian, guru-guru yang berusia muda cenderung lebih cepat tanggap dan mudah beradaptasi dengan program aplikasi ini.
Hydrogel Composite Based On Arrowroot Starch-G-Poly (Acrylamide-Co-Acrylic Acid)/Zeolite as Matrix of Controlled Release Urea Fertilizer Sjaifullah, Achmad; Winata, I Nyoman Adi; Suhardiman, Ahmad
Indonesian Chimica Letters Vol. 1 No. 1 (2022)
Publisher : Department of Chemistry, Faculty of Mathematics and Natural Sciences, University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (958.031 KB) | DOI: 10.19184/icl.v1i1.10

Abstract

Agricultural yields can be increased through fertilization. Conventional fertilization by spreading fertilizer on agricultural land is very ineffective. As much as 40-70% of the nitrogen from urea given through conventional fertilization will be leaching. This problem can be overcome by implementing a new fertilization system, namely by applying controlled fertilizer release technology or Control Release Fertilizer (CRF). The CRF system is made by loading or mixing urea fertilizer at the time of synthesis of a composite based on Arrowroot Starch-g-poly (acrylamide-co-acrylic acid)/zeolite. Fertilizer will come off gradually during fertilizing the land. Synthesis of starch-based hydrogel composite Arrowroot Starch-g-poly (acrylamide-co-acrylic acid)/zeolite loaded or mixed with urea fertilizer, has been successfully carried out. The composite's structure characterized by IR spectroscopy and its ability as CRF has also been tested through swelling and urea release tests in distilled water, phosphate buffer pH 5, pH 7 and pH 9. The results show that the swelling capacity and urea release in distilled water > Buffer pH 7 > pH 9 > pH 5. The welling degree in distilled water, Buffer pH 5, pH 7 and pH 9 is 39.078; 18,719; 36,296 and 33,510 g.g-1 respectively and the release of urea is 2,129; 1,829; 2,110; and 2,091 mg.mL-1 respectively and they showed significant differences.
Essential Oil Composition of Rose Flowers from Karangpring Village Jember District Extracted by Distillation and Enfleurage Oktavianawati, Ika; Letisya, Nanda; Citra, Priscillia; Utari, Dwi Purwita; Winata, I Nyoman Adi; Handayani, Wuryanti; Nugraha, Ari Satya
Jurnal ILMU DASAR Vol 20 No 2 (2019)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (346.523 KB) | DOI: 10.19184/jid.v20i2.8995

Abstract

Karangpring is one tourist destination villages in Jember district which is popular with beautiful large rose field areas. Therefore, this area grows to be a leading producer of rose flowers in Jember district. However, the bulky presence of these flowers made its price becomes lower in regular days. Local community only uses and sells these fresh flowers as the flower for funeral. The rose flower has a great potency to be explored as a source of rose essential oil production. To date, there is no previous research on studying rose flowers from Karangpring village for its potency on the essential oil production. In this research, rose flowers were subjected to be extracted of its essential oil using two extraction methods, distillation, and enfleurage. Hydrodistillation resulted two phases of distillates, above part formed a cloudy white phase as a normal essential oil extracted from plants, and the lower phase was an aqueous phase containing rose hydrosols. Both phases of these condensates were analyzed using GCMS. Data explained that above phase, with a yield oil of 0.07%, only contains long-chain hydrocarbons such as n-nonadecane, n-heptadecane, 9-nonadecene, and eicosane, while the lower phase only contains 2-phenylethyl alcohol. On the other hand, enfleurage of fresh rose flowers resulted in 0.06% oil yield. GCMS analysis of this oil shows that 2-phenylethyl alcohol, eugenol, and phenylacetic acid are three major compounds which take more than 85% of total rose absolute. The results show that enfleurage is a better method for extracting rose oil in better quality than using the distillation method, in term of the variety of volatile components. Meanwhile, hydrodistillation is still benefiting from producing rose water that is qualified as an industrial additive agent for food and cosmetic productions or even a new potent of agromedicine products. Keywords: rose, rose oil, rose water, rose absolute, distillation, enfleurage.
Onoceranoid Triterpene from Langsep Leaf (Lansium domesticum Corr.) and Its Insecticide Activity to Spodoptera littura Larvae Winata, I Nyoman Adi; Sjaifullah, Achmad; Cahyani, Dita J.; Ayu, Woro D.
Jurnal ILMU DASAR Vol 18 No 1 (2017)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (256.496 KB) | DOI: 10.19184/jid.v18i1.3110

Abstract

Onoceranoide type of triterpene was isolated from leaf of langsep (Lansium domesticum Corr.) Isolation is conducted by vacuum and flash column chromatography technics with Silika Gel 60 F, Silika Gel 60 (70-230 mesh), and Sephadex LH-20 powder as stationery phase and mixture of dichloromethane, methanol, ethyl acetate as mobile phase. The structure was identified by Infrared and NMR spectroscopy. It has moderate insecticidal activity to Spodoptera littura larvae with LC50 13,6 ppm.
Co-Authors AA Sudharmawan, AA Achmad Sjaifullah Anita Karolina, Anita Ayu, Woro D. Cahyani, Dita J. Citra, Priscillia Dwi Indarti Emilia L Ghisalberti Euis Holisotan Hakim Fauziah, Dina Trianggaluh Heny Yunita Novianti Ika Oktavianawati Joni Murti Mulyo Aji Kedang, Yohana Ivana Letisya, Nanda Lia Dewi Juliawaty M I Choudhary Meirinda Hermiastuti Meirinda Hermiastuti, Meirinda Nanda Letitia Ivana Novita Rahmawati Novita Rahmawati, Novita Nugraha, Ari Satya Purwatiningsih Purwatiningsih Ridho, Atok Ainur Sjamsul Arifin Achmad Suhardiman, Ahmad Suwardiyanto Suwardiyanto Tanti Haryati Utari, Dwi Purwita Wulandari, Ulfa Wuriyanti Handayani Wuriyanti Handayani, Wuriyanti Wuryanti Handayani Yana Maolana Syah Yudi Aris Sulisitiyo Yusro, Fatimah