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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 142 Documents
 1   2   3   4   5 
THE USE OF MCM-48-nCaO AS CATALYST IN ESTERIFICATION REACTION OF NYAMPLUNG SEED OIL (Calophyllum inophyllum L.) La Kolo; Firdaus Firdaus; Paulina Taba
Jurnal Akta Kimia Indonesia (Indonesia Chimica Acta) Volume 8 No 2 - December 2015
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/ica.v8i2.2466

Abstract

A study on the use of MCM-48-nCaO as a catalyst in the esterification reaction of nyamplung seed oil (Calophyllum inophyllum L.) has been carried out. The characterization results of XRF, XRD and FTIR showed the success in the synthesis of heterogeneous catalysts, MCM-48- nCaO, using a grinding-impregnation method. Through esterification reaction using the catalysts, FFA content in the seed oil of nyamplung reduced from 28 to 1.7%.
Utilization of Clay as Adsorbent Laboratory Waste Catherina M.Bijang; Ivonne Telussa
Jurnal Akta Kimia Indonesia (Indonesia Chimica Acta) Volume 1 No 1 - December 2008
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/ica.v1i1.2446

Abstract

Treatment for laboratorium waste need to carry out for prevented environment pollution if accumulation occured in the world. Natural resources available in maluku like clay can used to treat heavy metal Pb and Cu wastes. This adsorben were clay from Ouw village in Saparua,Maluku. The clay were brown and black. Each clay were activated with soaked in sulfuric acid for 5 and 10 hours. The result showed that the black clay with activated for 5 hours in sulfuric acid had the best adsorb.This clay more effective for adsorp Pb2+ ion compare with Cu2+ ion.Keywords : clay, adsorben, heavy metal.
STUDY OF COMPOUNDS FROM EXTRACT OF Melochia umbellata (Houtt.) Stapf var. Degrabrata K. (PALIASA) LEAVES THAT HAS POTENTIAL AS ANTIBACTERIAL Selfi Wullur; Firdaus Firdaus; Hasnah Natsir; Nunuk Hariani Soekamto
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.v8i1.2472

Abstract

Determination of antibacterial activity of each extract of M. umbellata (Houtt.) Stapf var. K. degrabrata leaves has been conducted against three strains bacteria Escherichia coli, Staphylococcus aureus, and Shigella dysenteriae by using amoxicillin as a positive control and DMSO as a negative control. Agar diffusion method has been used with MHA medium (Muller Hinton Agar) on variation concentrations of each extract were 2500 ppm, 5000 ppm, 10,000 ppm, and 20,000 ppm N-hexane extract was the most active extract against S. aureus with zone of inhibitions were 10.50 mm, 10.80 mm, 11.00 mm and 11.45 mm, respectively. The most active extract against S. dysenteriae was ethyl acetate extracts with zone of inhibitions were 9.36 mm, 11.55 mm, 11.58 mm and 17.70 mm, respectively. Isolated compound from n-hexane extract was first compound as white powder with a melting point of 75-77 °C which was identified as 1-Tetracosanol and second compound was obtained in the form of a yellow paste which was identified as steroid compound that had long conjugated substituent. These compounds were elucidated based on the data of IR, UV-Vis, 1H-NMR, and 13C-NMR.
Uji Toksisitas Ekstrak methanol Beberapa Bagian Jaringan Tumbuhan Bayur (Pterospermum subpeltatum C.B. Rob) Pince Salempa; Alfian Noor; Nunuk Hariani; Tjodi Harlim
Jurnal Akta Kimia Indonesia (Indonesia Chimica Acta) Volume 2 No 2 - December 2009
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/ica.v2i2.2462

Abstract

Bayur  plant    (Pterospermum  subpeltatum  C.B.  Rob)  has  not  been searched  for  their  secondary  metabolites.  However,  this  genes  was  used  as traditional   medicines  such as Pterospermum  javanicum   as cure for dysentry, toothache and Pterospermum  acerifolium   fer itchy drug. From toxicity test by BLST upon various tissues it was found that methanol extract, compared to other parts, has higher value 220 ppm.Keywords:  Pterospermum  subpeltatum  C.B. Rob, tocicity, traditional  medicine, Artemia salina
Dinamika Akumulasi Kadmium Pada Tanaman Kangkung Darat (Ipomoae reptans Poir) Syarifuddin Liong; Alfian Noor; Paulina Taba; Hazirin Zubair
Jurnal Akta Kimia Indonesia (Indonesia Chimica Acta) Volume 2 No 1 - June 2009
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/ica.v2i1.976

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. 
Phytochemical Test, Toxicity and Antioxidant Activity Leaves Kerehau (Callicarpa longifolia Lam.) With DPPH Method Erwin Erwin; Redda An Nisa; Daniel Daniel
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.v8i1.2481

Abstract

Phytochemical analysis, toxicity test by the   brine   shrimp   lethality   test   (BSLT) against Artemia salina L, and antioxidant activity evaluation of the extracts of  Kerehau leaves (Callicarpa longifolia  Lam.)  have  been  carried  out.  The  ethanol  extract  obtained  from  Kerehau  leaves  was concentrated by using a rotary vacuum evaporator. Furthermore, the crude extract was fractionated with n-hexane and ethyl acetate solvent, successively. The phytochemical  analysis of crude extract constitutes alkaloids, phenolics, flavonoids and steroids. n-hexane fraction contains alkaloids, flavonoids and steroids and ethyl acetate fraction contain alkaloids, phenolics and flavonoids. n-Hexane fraction exhibited highest toxic activity with LC50  value 90.05 ppm against Artemia salina L and ethyl acetate fraction has the highest antioxidant activity with IC50 value 38.94 ppm compared with other extracts.
PHYTOCEMICAL ANALYSIS AND ANTI OKSIDANT ACTIVITY OF THE WOOD ETHANOLIC EXTRACTS OF SIRIH HUTAN (Pipe aduncum) Erwin Erwin
Jurnal Akta Kimia Indonesia (Indonesia Chimica Acta) Volume 8 No 2 - December 2015
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/ica.v8i2.2468

Abstract

Sirih hutan (Piper aduncum) grew evenly in the tropical rain forests of East Kalimantan; it was used as a drug itching by local people. The present study is aimed to determine the chemical content and evaluate the free radical scavenging potential antioxidant activity of the extract of Sirih hutan wood. Based on the results of the GC-MS of the wood extract of Sirih hutan consists of 11 compounds. The inhibition of DPPH scavenging free radicalst of extract in ethanol preparations is IC50 259.74 ppm.
Studi Bioaktivitas Antibakteri Fraksi Protein Hidroid Aglaophenia cupressina Dari Pulau Lae-Lae Sulawesi Selatan Nur Umriani; Abdul Rauf Patong; Ahyar Ahmad
Jurnal Akta Kimia Indonesia (Indonesia Chimica Acta) Volume 1 No 1 - December 2008
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/ica.v1i1.2447

Abstract

This research aimed to know the activity of bioactive protein, extracted from Hydroid (Aglaophenia cuppressina), in inhibiting the growth of pathogenic bacteria. Samples were taken from Lae-lae Island in South Sulawesi. Methods used were the Lowry method for determining the protein concentration and the agar diffusion method  for testing the antibacterial activity. Extraction of Hydroid was conducted by making use of buffer solution, (0,1 M Tris-HCl of pH 8.3, 2 M NaCl, 0.01 M CaCl, 1% β-mercaptoethanol, and 0.5% Triton X-100). Protein was purified by ammonium sulfate precipitation at 20%, 40%, 60% and 80% saturation followed by dialysis. Results showed that the protein fraction of Aglaophenia cuppressina before dialysis with 40 % ammonium sulfate saturation had the highest antibacterial activity to Staphylococcus aureus and Escherichia coli with inhibition zones of  14.58 and 18.05 mm, respectively. In addition, the protein fraction of Aglaophenia cuppressina after dialysis with 40 % saturation also had the highest antibacterial activity to the tested bacteria with inhibition zones of  13.95 and 11.78 mm, respectively. The minimum inhibition concentration to the tested bacteria and Escherichia coli at 40% ammonium sulfate (0,1 M Tris-HCl of pH 8.3, 2 M NaCl, 0.01 M CaCl 2 saturation was 6000 µg/mL with inhibition zones of 9.78 and 8.73 mm, respectively. Based on the bioactivity test of the Hydroid protein fraction using the agar diffusion method, it can be concluded that the activity characteristic of the fraction is bacteriostatic.Key words: Bioactivity, hydroid, bioactive protein, antibacterial, inhibition zone.
Isolasi, Karakterisasi, dan Uji Bioaktivitas Metabolit Sekunder dari Hydroid Aglaophenia cupressina Lamoureoux Sebagai Bahan Dasar Antimikroba Eva Johannes; Hanapi Usman; Ahyar Ahmad
Jurnal Akta Kimia Indonesia (Indonesia Chimica Acta) Volume 2 No 1 - June 2009
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/ica.v2i1.972

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.
ADSORPTION RATE CONSTANTS OF EOSIN IN HUMIN Andi Muhammad Anshar; Santosa S.J; Sudiono S
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.v8i1.2473

Abstract

Eosin is one of the dyes commonly used in the industry and has the potential to cause pollution of the water environment. The Eosin pollution treatment methods used in this study was the adsorption method using humin fraction obtained from the peat land comes from Kalimantan. From the research data showed that the adsorption of eosin in humin result of washing with HCl / HF optimum at pH 4 and a contact time of 60 minutes with the adsorption-order rate was 8,4 x 10-3 min-1

Page 3 of 15 | Total Record : 142

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