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INDONESIA
Indonesia Chimica Acta
Published by Universitas Hasanuddin
ISSN : 2085014X     EISSN : 26556049     DOI : -
Core Subject : Engineering,
Chemical Engineering, Chemistry & Bioengineering
Jurnal Akta Kimia Indonesia (Indonesia Chimica Acta) is a peer-reviewed research journal that is devoted to the dissemination of new and original knowledge in all branches of chemistry. The result of research and development in the fields of chemistry in both experimental and theory/ computation, chemical-based technological innovations, and chemical applications in industrial fields. The journal publishes original research articles or review articles in organic chemistry, inorganic chemistry, analytical chemistry, physical chemistry, biochemistry, and environmental chemistry.
Arjuna Subject : -
Articles 113 Documents
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UTILIZATION OF CACAO FRUIT PEEL (Theobroma cacao) AS A BIOSORBENT OF Ni(II) IONS METAL Malimongan M; Nursiah La Nafie; Paulina Taba
Jurnal Akta Kimia Indonesia (Indonesia Chimica Acta) Volume 8 No 1 - June 2015
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/ica.v8i1.2479

Abstract

Nickel is one of the heavy metals which is very dangerous because it is carcinogenic and can cause a variety of acute and chronic diseases. Biosorption is one alternative method for the removal of heavy metals from the environment using a biomaterial called biosorbent. Biosorption of Ni(II) ion using cacao fruit peel (Theobroma cacao) with variation of contact time, pH and concentration has been investigated. The concentration of Ni(II) ion before and after adsorption was determined by Atomic Absorption Spectrophotometer (AAS). The result showed that cacao fruit peel (Theobroma cacao) was able to adsorb Ni(II) ion and the optimum biosorption occured at a contact time of 10 minutes and at a pH of 5. Langmuir and Freundlich isotherm models were used to study the adsorption isotherm. Biosorption of Ni(II) ion by cacao fruit peel (Theobroma cacao) fulfilled the Langmuir isotherm with a biosorption capacity of 0,21 mmol/g. The functional groups involved in the  biosorption of Ni(II) ion by cacao fruit peel (Theobroma cacao) are –OH and N-H.
Proses Transesterifikasi Biji Minyak Jarak Dengan Bantuan Enzim Lipase Sebagai Penghasil Biodiesel Hala, Yusafir; Jufri, Muh. Zulkifli; Tambung, Astina
Indonesia Chimica Acta Volume 2 No 1 - June 2009
Publisher : Indonesia Chimica Acta

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Abstract

The investigation was carried out to prevent the scarce of fosil based fuel. In this investigation used seed of castor oil plan (Jathropha curcas L.) as natural row material to make castor oils and converted to biodiesel so that it’s friendly to the biological environment. Castor oils produced by extraction process with soxhletation methods used n-hexane solvent. The result of extraction then converted to biodiesel by transesterification process at optimum temperature 40o C with methanol and catalyzed with lipase enzyme. Free fatty acid analysis and total fat analysis was done to the result product, and then biodiesel converted value as 88.67% gotten. Some characteristics analysis of biodiesel castor oils like density, viscosity, pouring point, flaming point, and caloric value according ASTM D6751. The result of investigation showed castor oils biodiesel can be used as diesel fuel.Keywords : fuel, castor oils, biodiesel, transesterfication, and optimum temperature.
Dinamika Akumulasi Kadmium Pada Tanaman Kangkung Darat (Ipomoae reptans Poir) Liong, Syarifuddin; Noor, Alfian; Taba, Paulina; Zubair, Hazirin
Indonesia Chimica Acta Volume 2 No 1 - June 2009
Publisher : Indonesia Chimica Acta

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Abstract

ne heavy metal, which is potential as pollutant, is cadmium that has been accumulated in soil and sediment. Although, cadmium is non essential element for plants, it is easily adsorbed and accumulated by various plants. The negative effect of cadmium on plants is that it can prevent the absorption of nutrition so that the plant growth will be inhibited and then the plant will die. Therefore, it is necessary to reduce the concentration of cadmium to be used as good growth media. Several methods of heavy metal accumulation, such as physical, chemical and biological methods, have been used, but the three methods have been considered as less effective methods. The use of plants to accumulate heavy metals in polluted soil is considered as a good method because the method is a safe method and can increase the soil fertility. In this research, accumulation of cadmium has been conducted by using Ipomeae reptans Poir. Result showed that the highest concentration that can be accumulated by I. reptans Poir was 3317.68 mg/kg of dried mass with the plantation time of 21 days. The increase of concentration in the growth media increased the cadmium concentration accumulated. The high accumulation of cadmium showed that I. reptans Poir is a hyperaccumulator plant for cadmium. The bioconcentration value was higher than 1, whereas the translocation factor was lower than 1 indicating that the accumulation mechanism was phytostabilization.Keywords : cadmium, accumulation, analysis, Ipomoae reptans Poir. 
Isolasi, Karakterisasi, dan Uji Bioaktivitas Metabolit Sekunder dari Hydroid Aglaophenia cupressina Lamoureoux Sebagai Bahan Dasar Antimikroba Johannes, Eva; Usman, Hanapi; Ahmad, Ahyar
Indonesia Chimica Acta Volume 2 No 1 - June 2009
Publisher : Indonesia Chimica Acta

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Abstract

Isolation, structure elucidation, activity test against Salmonella thypi, Staphylococcus aureus of secondary metabolite from hydroid Aglaophenia cupressina Lamoureoux, were conducted. This study was aimed to identify and isolate the compound with antibacterial properties of hydroid Aglaophenia crupessina Lamoureoux. This study used stepwise method with the following sequences: extraction, isolation, purification, structure elucidation, and bioactivity test. Study results indicated three compounds found: (1)carboxylate acid compound: hexadecanoic acid and has antibacterial properties; (2) alkaloidcompound which was considered as a new compound: aglaounhas and has antimicrobialproperties; (3) steroid compound: β-sitosterol with no antimicrobial properties.Keywords: Isolation, characterization, secondary metabolite, Aglaophenia cupressina, Antibacterial.
PRODUKSI SENYAWA BAKTERIOSIN SECARA FERMENTASI MENGGUNAKAN ISOLAT BAL Enterococcus faecium DU55 DARI DANGKE Razak, Abd. Rahman; patong, Abd. Rauf; Harlim, Tjodi; Djide, M. Natsir; Haslia, Haslia; Mahdalia, Mahdalia
Indonesia Chimica Acta Volume 2 No 2 - December 2009
Publisher : Indonesia Chimica Acta

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Abstract

Dangke is one of traditional food from Enrekang Province Sulawesi Selatan which is made from buffalo milk and enzimatically processed using papain from papaya’s gland secretion. Research on this local product as source of lactic acid bacteria (LAB) has been done. Counted 30 LAB was successfully isolated and 3 of them were potentially to be able to yield antimicrobial compound. Enterococcus faecium DU55 is one of LAB isolate available to be applied for producing bacteriocin compound through fermentation. Optimum condition of fermentation was specified by determining the highest antimicrobial activity generated by filtrate of fermentation result. Antimicrobial activity examination was carried out through diffusion agar method by measuring inhibition zone growth of pathogen bacterium Salmonella typhimurium FNCC 0050. Research results indicate that maximum bacteriocin compound production by BAL isolate E. faecium DU55 was obtained at condition of optimum fermentation at 30 °C during 42 hour using M1 medium with the same composition to medium MRS (Man Rogosa and Sharpe).Keyword: dangke, LAB isolate, bacteriocin, antimicrobial activity
Selektifitas Transpor Lantanum Dari Mineral Monasit Dengan Teknik Supported Liquid Membrane Nur Basir, Djabal
Indonesia Chimica Acta Volume 2 No 1 - June 2009
Publisher : Indonesia Chimica Acta

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Abstract

Transport selectivity of lanthanum from monazite mineral by supported liquid membrane, SLM technique has been studied. The supporting membrane, PTFE(polytetrafluoroethylene) was activated by immersing in a mixture of TBP(trybuthylphosphate) and D2EHPA (di-2-ethylhexyl phosphoric acid) at the composition of concentration in kerosene as carrier. Determination of the REE’s total concentration was carried out by visible spectrophotometric with NAS (sodium alizarin sulfonat) as the colouring agent, absorbance of the solution was determinated at 534 nm as maximum wavelength. For the determination of REE,s specific concentration an ICP-AES has been adopted, at emission maximum wavelength in each specific of REE’s, e.q : Ce at 418.66 nm, La at 408.316 nm, Nd at 401.225 nm, Gd at 342.247 nm, and Lu at 261.542 nm. Transport selectivity of lanthanum through SLM in a mixture of the REE’s simulation by optimum condition were pH of feed phase was 3.0, concentration of carrier composition (TBP : D2EHPA) was (0.3 : 0.7) M, and concentration of chloride acid of the receiving phase was 3.0 M. In this condition, separation factor of La toward Nd, Gd, and Lu : αLa,Nd 5.0297, αLa,Gd 8.1935, , αLu,La 11.9529. Transport selectivity of lanthanum from monazite mineral through SLM at optimum condition have been resulted lanthanum with the perity rate of increase from 25.08% to 89.84%, with recovery was 84.15%.Keywords : supported liquid membrane, carrier, polytetrafluoroethylene, trybuthylphosphate, di-2-ethylhexyl phosphoric acid.
Sonneratia alba sebagai Sumber Senyawa Antibakteri Potensial Herawati, Netti; Jalaluddin, Noor; Daha, La; Zenta, Firdaus
Indonesia Chimica Acta Volume 2 No 2 - December 2009
Publisher : Indonesia Chimica Acta

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Abstract

Four different organic solvents, methanol, N- heksana, kloroform, and etil acetate were used to extracted some bioactive compounds from bark of mangroves plant Sonneratia alba (kayu buli) for screening of antibacterial activity against three pathogen bacteria, Staphylococcus aureus,Eschericha coli, and Bacillus subtillis by agar diffusion method. All extracts were able to inhibit the growth of these bacterial significantly in concentration of 5%. Etil acetate ekstract showed highest antibacterial activity.Methanol, chloroform, and etil acetate were effective solvent to extract bioactive compound that have a antibacterial properties from this plant.Keyword: Kayu buli, Sonneratia alba, antibacterial activity
Skrining Bioaktivitas Beberapa Bagian Jaringan Tumbuhan Paliasa(Melochia umbellata (Hout) Stapf var. Degrabrata K) Erwin, Erwin; Noor, Alfian; Soekamto, Nunuk Hariani; Harlim, Tjodi
Indonesia Chimica Acta Volume 2 No 1 - June 2009
Publisher : Indonesia Chimica Acta

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Abstract

Paliasa is one of tropical plants that used as an etnobotanical traditional drug by the people of South Sulawesi. Paliasa leaves is believed and used as a drug for hypertension, diabetes mellitus, cholesterol, and hepatitis diseases. Preliminary study was done by Brine shrimp lethality test with Artemia salina to a tissue part of one of type paliasa, Melocia umbellata (Houtt.) Stapf. var. degrabrata K. The result show that the wood of this plant is the most active with LC50 value of 1,80 ppm. Keywords : Paliasa, traditional drug, M. umbellata, bioactivity.
Bioakumulasi Ion Logam Kadmium Oleh Fitoplankton Laut Tetraselmis chuii dan Chaetoceros calcitraus Muhammad Sjahrul; Arifin Arifin
Jurnal Akta Kimia Indonesia (Indonesia Chimica Acta) Volume 3 No 1 - June 2010
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/ica.v3i1.5971

Abstract

The use of the marine phytoplankton, Tetraselmi chuii and Chaetoceros calcitrans have already been reported. The relationships of the usefulness as phytoremidiator on cadmium polluted marine are not yet well understood. Therefore, this study was conducted to evaluate the influence of Cd2+ addition on fitoplankton medium towards the growth, interacting time, pH medium that could accumunlate Cd2+ in the function groups involved in the bioaccumulation prosess of Cd2+ by phytoplankton. The method of the analysis and the data collectionwas carried out on (1) the growth acceleration, the number of phytoplankton cells, and the chlorophyl-a content; (2) the Cd2+ content in phytoplankton on various interacting time, and pH medium; and (3) the infra-red spectrum of phytoplankton biomass before and after the interaction with Cd2+. The addition of Cd2+ on T. chuui medium can decrease the growth and content of chlorophyll-a, while the addition of Cd2+ on C. Calcitrans medium can increase the growth and content of chlorophyl-a. The phytoplankton can accumulate Cd2+ in the pH8 in the interacting time of 15 minutes with the optimal accumulating ability of 13.46 and 1, 055.27 mg Cd2+ per gram of T. chuii and C. Calcitrans biomasses successively. The function groups of T. Chuii involved in the bioaccumulation process of Cd2+ are-OH, CN, S=O, N-O, S-S and M-S, while on C. Calcitrans, the function groups are-OH, C=0, S-S, M-S and C=C.Keywords: Bioaccumulation, Kadmium, Tetraselmis chuii, Chaetocer calcitransKey
Pengaruh Konsentrasi Glutaraldehid Pada Komposisi Membran Elektroda Biosensor Pestisida Karbamat Mashuni Mashuni; Muhammad Syahrul; Ahyar Ahmad; Abdul Wahid Wahab
Jurnal Akta Kimia Indonesia (Indonesia Chimica Acta) Volume 3 No 1 - June 2010
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/ica.v3i1.5970

Abstract

In recent years carbamic pesticides, which show low environmental persistence but a high acute toxicity. Their presence in environmental and food poses a potential hazard to human health and there is a growing interest in their rapid and accurate determination for food safety and environmental monitoring. The aim of this research is to design biosensor for analyzing carbamate pesticides residue in sample show with composite variable concentrate glutaraldehyde (GA) in electrode membrane. Enzim acetylcholinesterase (AChE) was co-immobilised with choline oxidase (ChO) onto a platinum (Pt) surface using a solution of 10% cellulose acetate and 15%, 20%, 25% glutaraldehyde. Result of this research show that glutaraldehyde 15% the detection limit is 10-7,8 M for glutaraldehyde 20% the detection limit is 10-8,4 M and glutaraldehyde 25% the detection limit is 10-8,7 M. This a results is approximately equal to 0,0022 ppm or 2,2 ppb – 0,0002 ppm or 0,2 ppb, which means that this biosensor is sensitive for determining carbamates pesticides residue where its detection limit is comparable to to the detection limit of conventional instrument such as Gas Chromatography (GC) and High Pressure Liquid Chromatography (HPLC), i.e. respectively 1,5 ppb and 2,0 ppb. The proposed electrochemical pesticide sensitivity test exhibited high sensitivity, desirable accuracy, low cost and simplified procedure.Keywords: Biosensors, glutaraldehyde, cellulose acetate, immobilised, carbamate Biosensors, glutaraldehyde, cellulose acetate, immobilised, carbamate pesticides

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