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Rosnani Nasution
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Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Chemistry Earth & Planetary Sciences Energy Immunology & microbiology Neuroscience Physics

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APPLYING SEM-EDX TECHNIQUES TO IDENTIFYING THE TYPES OF MINERAL OF JADES (GIOK) TAKENGON, ACEH Julinawati .; Marlina .; Rosnani Nasution; Sheilatina .
Jurnal Natural Volume 15, Number 2, September 2015
Publisher : Universitas Syiah Kuala

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Abstract

Research on the applying of SEM-EDX techniques for identification of minerals types of Jades (Giok) Takengon Aceh has been done within this study. Based on data of SEM-EDX, it showed that Jades (Giok) Takengon is belonging to a mineral of silicate. The types of minerals of Jades (Giok) Takengon are Grossular (Ca3Al2(SiO4)3 from the Garnet group, which is a mineral of nesosilicate and the other type  is lizardite, (Mg3Si2O5(OH)4, from the group Serpentine , which is a mineral of phyllosilicate. SEM-EDX can be used as a technique to identify the types of minerals and the results obtained fast and accurate.
Antidiabetic Activity of Leaves Ethanol Extract Chromolaena odorata (L.) R.M. King on Induced Male Mice with Alloxan Monohydrate Marianne Marianne; Dwi Lestari; Elin Yulinah Sukandar; Neng Fisheri Kurniati; Rosnani Nasution
Jurnal Natural Volume 14, Number 1, March 2014
Publisher : Universitas Syiah Kuala

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Chromolaena odorata or Tekelan has been used traditionally to cope with diabetes mellitus, but the scientific evidence as antidiabetic agent has not been previously reported. Therefore, it is necessary to test the antidiabetic activity using ethanol extract of the tekelan leaves in male mice induced by alloxan. Mice were induced intravenously by alloxan dose of 55 mg/kg bw. After 7 days, mice were diabetic ( KGD 200 mg/dL ) and were grouped into 6 groups: negative control group (only treated with CMC - Na) , positive control group (glibenclamide 0.45 mg/kg bw) and the 4 other groups were given ethanol extract of Tekelan leaves at doses of 5 , 25 , 125 and 250 mg/kg bw. Dosage administered for 28 days and blood glucose levels was checked every 7 days using a glucotest. Data were analyzed by one-way analysis of variation at 95% confidence level. Ethanol extract of tekelan’s leaves  at doses of 5 , 25 , 125 and 250 mg/kg bw can lower blood levels  from day 7 to day 28 and was significantly different compared to the negative control group ( p 0.05). Ethanol extract of tekelan’s leaves at doses of 5 , 25 , 125 and 250 mg/kg bw showed antidiabetic activity in alloxan-induced mice.
Co-Authors ., Julinawati Dwi Lestari Elin Yulinah Sukandar Marianne Marianne Marlina . Neng Fisheri Kurniati Neng Fisheri Kurniati Sheilatina .