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INDONESIA
CAKRA KIMIA (Indonesian E-Journal of Applied Chemistry)
Published by Universitas Udayana
ISSN : -     EISSN : 23027274     DOI : -
Core Subject : Science, Engineering,
Chemical Engineering, Chemistry & Bioengineering Chemistry Electrical & Electronics Engineering
Jurnal ini merupakan jurnal elektronik di bidang kimia terapan yang dikelola oleh Magister Kimia Terapan, Program Pascasarjana, Universitas Udayana, Bali. Jurnal ini memuat artikel-artikel penelitian yang berhubungan dengan Kimia Terapan yang meliputi Kimia Analitik, Kimia Polimer, Biokimia, Kimia Bahan Alam, Kimia Fisik, Kimia Permukaan, Biomaterial,dan bidang-bidang terkait. Jurnal ini akan terbit 2 kali dalam setahun yaitu pada bulan Pebruari dan September. Jurnal ini terbuka untuk diakses oleh semua kalangann(Open Access Journal)
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Articles 4 Documents
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Search results for , issue "Volume 1, No. 1, 2013" : 4 Documents clear
UJI TOKSISITAS DAN IDENTIFIKASI EKSTRAK ETANOL SPONS Callyspongia aerizusa TERHADAP LARVA Artemia salina L. Made Rai Rahayu; James Sibarani; I Made Dira Swantara
CAKRA KIMIA (Indonesian E-Journal of Applied Chemistry) Volume 1, No. 1, 2013
Publisher : Magister Program of Applied Chemistry, Udayana University, Bali-INDONESIA

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Abstract

Identification of active compounds extracted from marine sponge Callyspongia aerizusa and their toxicity against  Artemia salina L. larvae using BSLT method had been carried out. Partition of the ethanol extract using n-hexane, chloroform and water was conducted and we found that the chloroform fractions was the most toxic with LC50 of 43.65 ppm. The chloroform fractions were then separated by column chromatography using chloroform: ethyl acetate (7:3) as eluent and 5 fractions (FA-FE) were obtained. Fraction A was the most toxic with LC50 of 52.48 ppm. Identification the chemical compounds of the toxic isolates (FA) was conducted by using GC-MS showing eight (8) compounds which are hexadecanoic acid methyl ester, 9-heneicosene, 9-ctadecenoic acid methyl ester, octadecanoic acid methyl ester, 1,2-benzenedicarboxylic acid bis-(2-ethylhexyl) ester, octacosane, n-heneicosane, and tetratetracontane.
PENENTUAN KANDUNGAN LOGAM Cd DAN Cu DALAM PRODUK IKAN KEMASAN KALENG SECARA SPEKTROFOTOMETRI SERAPAN ATOM (SSA) Hellna Tehubijuluw; Eirene.G. Fransina; Semuel Simra Pada
CAKRA KIMIA (Indonesian E-Journal of Applied Chemistry) Volume 1, No. 1, 2013
Publisher : Magister Program of Applied Chemistry, Udayana University, Bali-INDONESIA

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Abstract

Determination of cadmium and copper concentration of canned fish have been done. Some canned fished were taken away from three mercks circulating in a market and marked as RS (the 1st sample), NF(2nd sample), and CP(3rd sample). The aim of this research is to determine of  cadmium (Cd) and copper (Cu) content of canned fish and to compare the content with the standard limit regulated by the Directorate General of Drug and Food Control No: 03725/B/SK/VII/89. Determination of metal concentration was conducted using  atomic absorption spectrophotometer (AAS). It was found that Cd concentrations of RS and  NF samples are 0.1969 mg/kg and0.0448 mg/kg, respecively while for  CP it was not detected. For Cu concentrations of  RS, NF, and CP are 3.3303 mg/kg, 4.6130 mg/kg, 3.3047 mg/kg  respectively. The results indicated that the samples of the canned fishes  have been contaminated with Cd and Cu metals although the levels of those metals are still lower than  the maximum limit regulated by the Directorate General of Drug and Food Control No: 03725/B/SK/VII/89 where the maximum limit for Cd and  Cu are 0,2 mg.kg and 5.0 mg/kg respectively.    
IDENTIFIKASI DAN UJI AKTIVITAS ANTIKANKER EKSTRAK SPONS Ianthella basta TERHADAP LARVA Artemia salina L. Ni Wayan Sri Sukmarianti; Ni Made Suaniti; I Made Dira Swantara
CAKRA KIMIA (Indonesian E-Journal of Applied Chemistry) Volume 1, No. 1, 2013
Publisher : Magister Program of Applied Chemistry, Udayana University, Bali-INDONESIA

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Abstract

The main purpose of this research is to determine the toxicity of extracts sponge Ianthella basta against Artemia salina larvae and to identify the chemical compounds contained in those toxic isolates. The preliminary test of the anticancer activity has conducted by Brine Shrimp Letalithy (BST) test. The results showed that the chloroform extract was the most toxic with LC50 value of 22,39 ppm. Futher, the cloroform extract was separated and purified by coloumn chromatography using eluent of solvent mixture of chloroform : ethyl acetate : n-hexane by 7 : 2 : 1 and 4 fractions were obtained. The most toxic fraction was the fraction C with LC50 value of 35,36 ppm. Based on the GC-MS results, the toxic isolate is allegedly containing chemicals compound of hexadecanoic methyl ester and hexadecanoic acid.
UJI TOKSISITAS DAN IDENTIFIKASI EKSTRAK SPONS Haliclona fascigera TERHADAP LARVA Artemia salina L. Kadek Dewi Wirmandiyanthi; Manuntun Manurung; I Made Dira Swantara
CAKRA KIMIA (Indonesian E-Journal of Applied Chemistry) Volume 1, No. 1, 2013
Publisher : Magister Program of Applied Chemistry, Udayana University, Bali-INDONESIA

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Abstract

The main purpose of this research is to determine the toxicity of sponge  Haliclona fascigera against larvae of Artemia salina and determine the compounds contained in the toxic isolates of sponge. The results showed chloroform fraction had the highest toxicity with LC50 of 63.10 ppm. Chloroform extracts were then separated by using eluent chloroform: ethyl acetate (8:2) and obtained five fractions. Based on the results of toxicity tests of the fifth fraction indicates the fraction 5 (F5) has the highest toxicity with LC50 of 89.13 ppm. Identification of toxic isolates F5 with GCMS show contained compound is 2-decenal, 3-eicosene, 6,10,14-trimethyl-2-pentadecanon, dibutyl-1,2-benzendikarboksilat, heksadekanoat acid, 4,8,12,16-tetramethylheptadecan-4-olide and dioctyl-1,2-benzendikarboksilat.  

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