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MARINA CHIMICA ACTA

mca
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Published by Universitas Hasanuddin

ISSN : 14112132 EISSN : 26206145 DOI : -

Core Subject : Science,

Biochemistry, Genetics & Molecular Biology

When the first time appeared in 1999, Marina Chimica Acta was introduced as trilingual journal meaning that we can accept to publish articles in any kind of three languages such as bahasa Indonesia, English, and French. Starting April 2017, however, the publication has been made in English only, no more in bahasa Indonesia nor in French. Currently, Marina Chimica Acta is an international medium and occasional reviews of the publications of original studies (research papers) and occasional reviews in the field of marine chemistry. The journal will endeavor to cover all aspects, from chemical processes to theoretical and experimental work, and by providing a central channel of communication, to speed the flow of information in rapidly expanding disciplines. Submitted paper should be written in English.

Arjuna Subject : -

Articles 83 Documents

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THE EXISTENCE OF PLASTIC WASTE MANAGEMENT IN THE SEA ENVIRONMENT SEEN FROM CHEMICAL SCIENCE ANGLE Alfian Noor
Marina Chimica Acta Vol. 20 No. 2 (2019): Volume 20, No. 2 (2019)
Publisher : Hasanuddin University

Plastic waste from year to year in the marine environment continues to increase. This is due to its wide application and its resistance to degradation making it difficult or impossible to decompose. Plastic waste has been found in various sizes and accumulated in the body of marine life. The existence of plastic waste in the body of the marine biota even causes death. This review discusses the latest advances in research and development of methods for handling plastic waste in the marine environment.

THE EFFECT OF Fe2+ DAN Mn2+ IONS TOWARD β-CAROTENE PRODUCTIVITY BY PHYTOPLANKTON Isochrysis aff galbana (T-iso) Erna Mayasari; Indah Raya; Hasnah Natsir
Marina Chimica Acta Vol. 13 No. 2 (2012): Volume 13 No. 2 (2012)
Publisher : Hasanuddin University

The research aimed to find out the effect of Fe2+ and Mn2+ towards β-carotene productivity as result of oxidative stress from photosystem (PS II). The phytoplanton Isocrysis aff galbana (T-iso) were the microalgae species which had the high lipid content primarily and had potentiality to produce β-carotene as the β-carotene supplement. Analysis method was carried out by the sonication extraction for short and cheap in the lysis cell of phytoplankton biomassa, infra red (IR) to find out the interaction metal ion and UV/VIS spectrophotometer to determine β-carotene concentration. The research result indicateds that Fe2+ has higher impact than Mn2+ on the β-carotene productivity. The interaction of ions metal indicates as M-N, -O-M and M←OH-C complex in the phytoplankton amino acid. The β-carotene concentration is 4,97 µg/g DW in addition Fe2+ 0,30 ppm and 1,95 μg/g DW in Mn2+ 0,20 ppm. The dry weight concentrations of β-carotene indicates that I. aff galbana with Fe2+ addition has potential as β-carotene supplement.

DETERMINATION OF KOH EFFICIENCY AS CARBOSORB IN DETERMINING AGE OF CORAL REEF SAMPLES IN SELAYAR ISLANDS THROUGH LSC METHOD (LIQUID SCINTILLATION COUNTING) Muhammad Amri; Alfian Noor; Maming Maming
Marina Chimica Acta Vol. 20 No. 1 (2019): Volume 20, No. 1 (2019)
Publisher : Hasanuddin University

Research using the method of LSC (Liquid Scintillation Carbon) in determining the age of coral reefs in the Selayar islands has been carried out. The samples of coral reefs were taken between the tides. Sample preparation was carried out physically and chemically using an acid-base mixture solution: NaOH, H2O2, HClO4 and HCl produced coral samples that looked whiter with weight reduction of up to 1.6%. Carbonate is separated into CO2 by reaction with 10% HCl and absorption with KOH 1 M as K2CO3. Total carbon is determined by the titration method which produces 0.0542 g of total carbon sample. Specific activity of 14C measured by enumeration with LSC is 12.0542 DPM/gC. The age of coral reef samples obtained from sample specific activity data was 1971,728 years

COMPARISON OF MEA, DEA AND TEA AS CO2 ABSORBENTS FOR Waode Nur Rahmaniah; Alfian Noor; Muhammad Zakir; Maming Gaffar
Marina Chimica Acta Vol. 16 No. 1 (2015): Enzyme from Bacteria and Coral Age
Publisher : Hasanuddin University

Comparison of MEA, DEA and TEA as CO2 absorbent to measure carbon-14 activity of coral sample has been performed. This research aimed to Determine the age of coral reef sample of Spermonde Islands by measuring the activity of carbon-14 using the method Liquid Scintillation Counting (LSC). The sample of coral reef were collected in Langkai Island. The research were conducted by following steps of sample preparation, the CO2 absorption using the solutions of MEA, DEA and TEA. The measurement of the carbon-14 activities was performed using the Liquid Scintillation Counter (LSC) Hidex 300 SL. The research results indicated that the absorption capacities of MEA, DEA and TEA were 0.5180, 0.5903 and the absorbents of MEA, DEA and TEA were 14.44, 14.59, and 14.42 DPM/g C respectively. The age of the coral reef sample, which was calculated based on the specific activity values using the absorbents of MEA, DEA and TEA were 480.15 ± 37; 390.11 ± 60 and 488.22 ± 87 years respectively.Keywords : LSC (Liquid Scintilation Counter), Carbon-14, CO2 Absorption, Alkanolamine, Langkai Island

AGE DETERMINATION OF LIMESTONE ROCKS LEANG - LEANG CAVE COMPIL- ER THROUGH ACTIVITY MEASUREMENTS 14C USING LSC Syarifuddin Syarifuddin; Muhammad Zakir; Alfian Noor
Marina Chimica Acta Vol. 15 No. 2 (2014): Metals in Marine Samples and Age Determination using Liquid Scintillation Coun
Publisher : Hasanuddin University

Age Determination of Limestone of Leang - Leang Cave Through Activity Measurements of 14C Using LSC. This research has been carried out by using limestone samples taken from Leang- Leang Cave, Maros. Limestone is one of the environmental samples with a constituent of calcite mineral (CaCO3) which is derived from the remains of flora and fauna that has been weathered and petrified. Sample preparation was done physically and chemically. Preparation of chemically by using a mixture of NaOH with 30% H2O2 followed by a mixture of HClO4 with 30% H2O2, and the last with HCl solution to produce a clean sample with a weight reduction of 3,36% - 4,44%. Car- bonate matrix samples as CO2 is produced by reaction with 85% H3PO4 and absorbed by 1M KOH solution as K2CO3. The total carbon in the sample solution is 0,6144 - 0,9696 grams obtained through titration method. Radiocarbon dating method based on the measurement of the specific activity of the samples obtained from the results of counts LSC (Liquid Scintilation Counter) Hidex 300 SL. The specific activity of both of samples were 1,609±0,0359 DPM/g C and 7,718±0,109 DPM/g C. Age of both of limestone samples which were calculated from the specific activity were 25.607,403 ± 919,305 years and 8457,792 ± 921,899 years for BG I and BG II, re- spectively.

HEAVY METAL ANALYSIS CO AND V ON SEDIMENT DISTRICT OF MAMUJU DISTRICT USING INDUCTIVELY COUPLED PLASMA OPTICAL EMISSION SPECTROSCOPY (ICP-OES) Adji Permatasari; Maming Maming
Marina Chimica Acta Vol. 19 No. 1 (2018): Volume 19, No. 1 (2018)
Publisher : Hasanuddin University

This research concerning heavy metal analysis of Co and V on Mamuju Regency water sediments using Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES). Sediment sampling was conducted on four stations, namely the mouth of the Mamuju river, the mouth of the river Karema, the mouth of the river Rimuku, and front of Manakarra beach platform. The results showed that Co metes ranged from 0.167-0.208 mg/L while for metal V ranged from 0.649-0.944 mg/L. Of the three metals in the analysis are still below the threshold of metal quality standards in sediments or can be said not polluted.

APPLICATION METHODS LIQUID SCINTILLATION COUNTING (LSC) IN DETERMINING CONCENTRATION OF BIO SOLAR Rahmawati Rahmawati; Alfian Noor; Maming Gaffar; Muhammad Zakir
Marina Chimica Acta Vol. 17 No. 2 (2016): Volume 17 No. 2 (2016)
Publisher : Hasanuddin University

Research on the use of a liquid scintillation counter method in determining the concentration of biodiesel in the market has been carried out by taking samples of biodiesel in Pertamina. Preparation done by creating a standard biodiesel and biodiesel mixed with diesel at a certain concentration. Biodiesel is chemically formed by the transesterification and esterification process is converted into methyl ester triglycerides with the help of H2SO4 and NaOH as a catalyst. Total carbon in the sample solution is 1.5690 g/8 mL obtained through methods spekktrofotometri uv-vis. The method of determining the concentration of a specific activity based on measurements of samples obtained from the shredded Liquid Scintilation Counter (LSC) Hidex 300 SL, ie 11.5902 DPM / gC. By using the specific activity of the sample and the specific activity was added to standard linear equations of the obtained sample concentration of biodiesel amounted to 18.81%.

DETERMINATION OF PLUMBUM (Pb) SEAWEED Sargassum sp. AND Eucheuma spinosum IN WATER PUNTONDO REGENCY OF TAKALAR SOUTH SULAWESI Rahmawati Rahmawati; Mujahidah Basarang
Marina Chimica Acta Vol. 18 No. 2 (2017): Volume 18 No. 2 (2017)
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/mca.v18i2.2687

Seaweed is a low-grade plant that forms the thallus of the thallophyta division (leafless structure). In Takalar district especially in puntondo waters is a seaweed producing area, such as red seaweed (Eucheuma spinosum) and brown seaweed (Sargassum sp). The presence of lead (Pb) in aquatic bodies can come from natural sources and from human activities. However, as industrial and transport usage increases, lead concentration (Pb) in nature can increase. The purpose of this research is to know the content of lead metal (Pb) in some seaweed in Puntondo waters of Takalar Regency. This research is laboratory observation by using sampling technique of Aciddental Sampling. The object of this research is 4 (four) seaweed samples examined (Pb) level in Chemical Laboratory Faculty of Saintek UIN Alauddin Makassar. The results showed that there was Pb concentration in RLM 1 sample 1.7024 mg / kg. In RLM 2 samples there was Pb level of 0.1686 mg / kg. In RLC 1 samples, there was Pb content of 0.99 mg / kg, and in the sample RLC 2 there is a level of Pb as 1.1686 mg / kg. From this result obtained the highest result of Pb on RLM 1 sample that is 1,7024 mg / kg, and the lowest Pb level in RLM 2 sample that is 0,1686 mg / kg.

MOLECULAR CHARACTERIZATION OF GENE 16S rRNA MICRO SYMBIONTS Ismail Marzuki; Alfian Noor; Nursiah La Nafie; M Natsir Djide
Marina Chimica Acta Vol. 16 No. 1 (2015): Enzyme from Bacteria and Coral Age
Publisher : Hasanuddin University

Molecular characterization studies have been conducted 16S rRNA gene micro symbiont of sponge origin Melawai Beach, Balikpapan in East Kalimantan. Objective analysis of histomorphological research, isolation-purification, molecular characterization of micro-symbiont genes in order to search symbiont bacteria that can live in extreme environments contaminated hydrocarbon waste. The research method that morphological identification, isolation-purification and molecular characterization of the 16S rRNA gene with Chain Reaction Polymerization method. The results of histo-morphological analysis concluded sponge samples with species of Callyspongia sp Isolation and purification mikro symbionts of sponge obtained 2 (two) isolates. Characteristics of Isolates 1; spherical shape, colonize and creamy, while isolates 2; jagged shape, oval and white colonies. Molecular characterization of the 16S rRNA gene by PCR, Bacillus subtilis strain BAB-684 identification for isolates one is the number of nucleotide pairs reached 899 bp and the degree of similarity in GenBank reached 89% homologous, while the second is a Bacillus flexus strain PHCDB20 isolates the number reached 950 bp nucleotide pairs with the degree of similarity in GenBank reached 99% homologous.Keywords: Callyspongia sp, micro-symbionts, characterization, gene Molecules

DETERMINATION AND DEGRADATION PYRENE FROM PAOTERE PORT SEDIMENTS WITH OXIDIZER KMnO4 Rachma Surya Masnawan; Nursiah La Nafie; Adiba Arief
Marina Chimica Acta Vol. 18 No. 1 (2017): Volume 18, No. 1 (2017)
Publisher : Hasanuddin University

Paotere port is one of port in Makassar which functions as a stopover place of ships, also serves as fish market and fishermen settlements. Various activities of transportation, commerce and households occurred in the Paotere port area can be a source of pollution of pyrene compounds to the surrounding environment. Pyrene compounds that accumulate and can not be degrade will impact the environment and marine life. Determination pyrene in sediment from Paotere Port have been carried out using GC-MS by sonication using dichloromethane as solvent. Result show that there was no PAH in sediment of the three sampling stations. Pyrene compound chemically degradation was conducted by sonication for 1 hour using an oxidant KMnO4 concentration of 0.05 M, 0.07 M and 0.1 M. Results show that KMnO4 as oxidizing agent could to degrade the whole pyrene with concentration of 87,8554 ng/g in sediment.

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