A - Mathematics and Natural Sciences: Recent submissions
Now showing items 301-320 of 514
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Antidermatophyte and antimelanogenesis compound from Eleutherine americana grown in Indonesia
(J Nat Med, 2010-02-13) -
UJI AKTIVITAS ANTIHIPERURISEMIA DARI DAUN HIJAU TANAMAN PUCUK MERAH (SYZYGIUM MYRTIFOLIUM WALP.) TERHADAP MENCIT JANTAN (MUS MUSCULUS)
(Jurnal Atomik, 2017)ABSTRACTAntihyperuricemia activity tests were conducted on an ethanol extract of green leaf plant red bud(Syzygium myrtifoliumWalp.).Hyperuricemia is a condition in which uric acid levels ... -
ISOLASI AMILASE DARI KECAMBAH BIJI NANGKA (Artocarpus heterophyllus Lam)
(2017)ABSTRACTThis researchaims to isolate the crude extract amylase of sprouted seeds jackfruit (Artocarpus heterophyllus Lam) and determine the specific activity. Determination of total protein concentration and ... -
STUDI BIOAKUMULASI ION LOGAM Pb DALAM RAMBUT DAN DARAH OPERATOR STASIUN PENGISIAN BAHAN BAKAR UMUM, JALAN SENTOSA, SAMARINDA
(Jurnal Atomik, 2018-01)ABSTRACTA study about Bioaccumulationof Pb Metal Ion in Hair and Blood of Operator ofGeneral Fuel Filling Station,Sentosa Road Samarinda has been conducted. The aim of the study is to determine the accumulation ... -
Investigations on The Mechanism of Artificial Photosynthesis of Ca-Pc-PDI and Dendrimer Molecule by DFT Calculations
(Jurnal Ilmu Dasar, 2018-07)ABSTRACTArtificial photosynthesis modelling of Ca-Pc-PDI complexCaPhthalocyaninePerylenediimide),and dendrimer molecule using Density of Functional Theory (DFT) Method has been studied toshowed the energy ... -
INHIBISI XANTIN OKSIDASE OLEH FRAKSI ETIL ASETAT DARI DAUN JARUM TUJUH BILAH (Pereskia bleo (Kunth) DC) SEBAGAI ANTIHIPERURISEMIA
(Jurnal Atomik, 2018-08)ABSTRACT“Jarum Tujuh Bilah” leaves (Pereskia bleo(Kunth) DC) are a medicinal plant that often used in traditional medicine to reduce uric acid levels. This plant contains secondary metabolites which have the ... -
PEMBUATAN ETANOL DARI SAGU SECARA FERMENTASI MENGGUNAKAN Saccharomyces cerevisiae DAN GELATIN SEBAGAI SUMBER NUTRISI BAGI MIKROBA
(Jurnal Atomik, 2019-03)ABSTRACTEthanol from sago flour through fermentation using Saccharomyces cerevisiae and gelatin as nutrition for microbe have been done. The making of ethanol through processes of hydrolysis, ... -
PEMANFAATAN FRAKSI ETANOL DAUN JARUM TUJUH BILAH (Pereskia bleo (Kunth) D.C) SEBAGAI INHIBITOR XANTIN OKSIDASE DALAM PEMBENTUKAN ASAM URAT
(Jurnal Atomik, 2019-03)ABSTRACT : This research was conducted to determine the content of secondary metabolite contained in the extract and ethanol fraction of “Jarum tujuh bilah” leaves (Pereskia bleo(Kunth) DC)and and inhibition of ... -
Adsorption of toluene and xylene from aqueous solution on SBA-15 from rice husk
(Journal of Physics: Conference Series, 2019)Abstract. Synthesis of Santa Barbara Amorphous-15 (SBA-15) from rice husk ash (Oryza Sativa L.) as toluene and xylene adsorbents has been performed. SBA-15 was synthesised by the modified surfactant template method. ... -
STUDIMOLEKULKITOSANSEBAGAIMEMBRANPENGHANTARPROTON(H+)DENGANMETODEABINITIO
(Jurnal Kimia Mulawarman, 2019-11)Abstract : The aim of this research to know chitosan compound able to replace nafion performance as a conductor of proton (H+). The assessment process and computational chemistry calculations done using ab initio methods. ... -
PENURUNAN KONSENTRASI FENOL PADA AIR LAUT BALIKPAPAN YANG TERCEMAR MINYAK MENGGUNAKAN METODE ADSORPSI
(Jurnal Atomik, 2020)Research on decreasing of phenol concentration in the Balikpapan seawater polluted by using the adsorption method, the purpose of this study was to determine the characteristics of activated carbon and adsorption percentto ... -
Isolasi dan Identifikasi Steroid dari Ekstrak N-Heksana Daun Afrika (Vernonia amygdalina Del.)
(KOVALEN : Jurnal Riset Kimia, 2020-04-09)ABSTRACT : Isolation and identification of steroids from the n-hexane fraction of Vernonia amygdalina Del. was carried out. Separation and purification were performed using flash chromatographic and gravity chromatography. ... -
Identifikasi Batuan PAF, NAF dan UNCERTAIN dengan Menggunakan Metode NTAPP Pada Area PT. Trubaindo Coal Mining, Melak-Kalimantan Timur
(Indonesian Journal of Chemical Research, 2020-01)ABSTRACT : The research about identification of PAF, NAF and uncertain rock using NTAPP method in the PT. Trubaindo Coal Mining has been done. This research was conducted as an effort to control the potential for the ... -
Analisis kadar logam Pb, Cd, Cu, As pada air, sedimen dan bivalvia di Pesisir Teluk Balikpapan
(Dinamika Lingkungan Indonesia, 2020-07)Abstract : Analysis of Heavy Metal Content of Pb, Cd, Cu, As in Water, Sediments and Bivalves in Coastal Waters of Balikpapan Bay. The study aims to analyze the levels of heavy metals (Pb, Cd, Cu, As) in water, sediment ... -
PEMBUATAN ETANOL DARI UMBI SUWEG (Amorphophallus campanulatus BI.) OLEH Saccharomyces cerevisiae DENGAN PENAMBAHAN NUTRISI NPK
(Jurnal Atomik, 2020-03)Research of ethanol made from suweg tuber flour (Amorphophallus campanulatusBI.) withtheaddition of NPK as nutrition Saccharomyces cerevisiae, has been done. The ethanol making process consists of hydrolysis, ... -
PEMANFAATAN SERBUK KIAMBANG (Salvinia molesta) SEBAGAI ADSORBEN Fe(II) DAN Mn(II)
(Jurnal Atomik, 2020-03)Research on utilization of Kiambang powder (Salvinia molesta) as adsorbent Fe (II) and Mn (II)in artificial samples. The method used is adsorption with a modified activated adsorbent. From the results of the study obtained ... -
PENGGUNAAN SPEKTROFOTOMETER UV DAN HPLC PADA ANALISIS KANDUNGAN KAFEIN KOPI ARABIKA DAN ROBUSTA
(Jurnal Atomik, 2020-06)Analysis of caffeine content in Arabica coffee and Robusta coffee using Ultra Violet (UV)spectrophotometersand High Performance Liquid Chromatography (HPLC)was carried out. Coffee samples were ... -
PEMANFAATAN BIJI WANYI (Mangifera caesia Jack.) DALAM PEMBUATAN ETANOL SECARA HIDROLISIS ENZIMATIS DAN FERMENTASI MENGGUNAKAN Saccharomyces cerevisiae
(Jurnal Atomik, 2020-08)Abstract : The utilization of wanyi seeds (Mangifera caesiaJack.) in making ethanol by enzymatic hydrolysis and fermentation using Saccharomyces cerevisiaehas been carried out. The method used is the hydrolysis ... -
PENGARUH VARIASI WAKTU TERHADAP XILENA MENGGUNAKAN KARBON AKTIF DARI LIMBAH BATANG PISANG (Musa paradisiaca L)
(Jurnal Atomik, 2020-07)Test of activated carbon adsorption ability of banana stem waste (Musa paradisiacaL) on xylene has been carried out. In the characterization of activated carbon Scanning Electron Microscopy (SEM) was used to show the ...