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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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COMPARISON OF TWO BACKGROUNDS ON 14C ACTIVITY MEASUREMENT WITH LSC (LIQUID SCINTILLATION COUNTING) Andi Tenrisa’na; Alfian Noor; Muhammad Zakir
Marina Chimica Acta Vol. 19 No. 2 (2018): Volume 19, No. 2 (2018)
Publisher : Hasanuddin University

Comparison of the two types of background on 14C activity measurement has been carried out. This study aims to determine a better background for 14C activity measurement using the LSC (Liquid Scintillation Counting) method. The background used consists of two, namely background I and background II. Background I is a marble solution that has been absorbed using 30% DEA. Background II is a 30% DEA solution. Activity measurement of 14C was carried out using Hidex 300 SL liquid scintillation counter (LSC). Activity 14C background I is 99,389 DPM. While Activity 14C background II is 101,178 DPM. This shows that the background that is better used for measuring Activity 14C is background I, which is a marble solution that has been absorbed using DEA

DETERMINATION OF THE BIOSOLAR QUALITY BY ANALYSIS Nurdianti Nurdin
Marina Chimica Acta Vol. 17 No. 1 (2016): Radioactivity, Sponge Microsymbiont to degrade sludge oil, Honey as part of Sp
Publisher : Hasanuddin University

Research on biodiesel quality through the analysis of trace elements concentrations using Inductively Coupled Plasma Optical Emission Spectrometry (ICP OES) resulting from commercial biodiesel and of various formulations of blending between biodiesel from palm oil with diesel oil has been done. The study begins with the manufacture of biodiesel through a process of esterification and transesterification reaction with methanol, biodiesel quality analysis, and manufacturing of biodiesel at various blending namely B5, B10, B15, B20, and B25. Trace elements analysis was performed using Inductively Coupled Plasma Optical Emission Spectrometry (ICP OES). The research found concentration of trace elements in commercial biodiesel A and commercial biodiesel B dominated by K of 10.68 mg/L and 9,424 mg/L, followed by Mg, Na, Ca, and Fe. Most trace elements in biodiesel B5 is K amounted to 5.846 mg/L, followed by Na, Mg, Ca, and U. Trace elements are most in biodiesel B10 K of 7.113 mg/L, followed by U, Na, Mg, Fe and Ca. Most trace elements in biodiesel B15 is Na amounted to 35.89 mg/L, followed by Fe and Mg. Most trace elements in biodiesel B20 is K amounted to 7.154 mg/L, followed by Na, Ca, Mg, and Fe. Most trace elements in biodiesel B25 is K amounted to 6.154 mg/L, followed by Na, Ca, Mg, and Fe.Keywords: Biodiesel, ICP OES (Inductively Coupled Plasma

Biomonitoring of Heavy Metal Cadmium in Spermonde Islands Waters Makassar Using Bioindicator of Starfish (Protoreaster nodosus) Gita Permata Sari; Alfian Noor; Musa Ramang
Marina Chimica Acta Vol. 15 No. 2 (2014): Metals in Marine Samples and Age Determination using Liquid Scintillation Coun
Publisher : Hasanuddin University

This research aims to develop biomonitoring methods in terms of the development of marine life that can be used as bio-indicators of marine pollution. The analysis was optimized by means of samples taken from three different locations of the Barranglompo island waters, using AAS as an analysis technique. The analysis showed that cadmium content of heavy metals in starfish was 0.9916 ppm at the point I (05002’35,1” south latitude and 119019’46,1” north latitude), 1.0355 ppm at point II (05002’32,5” south latitude and 119019’44,3” north latitude) and 0.7889 ppm at point III (05002’29,4” south latitude and 119019’44,0” north latitude) in Spermonde Islands waters, particu- larly in Barranglompo island waters.

PengujianAktivitas Sitotoksik dan Penenentuan Spesies Bakteri Simbion Spons Haliclona sp Warsidah Warsidah
Marina Chimica Acta Vol. 14 No. 1 (2013): Volume 14 No. 1 (2013)
Publisher : Hasanuddin University

An investigation of cytotoxic activity from bacterial symbiont of sponge found in West Kalimantan upon shrimp larvae, with Brine Shrimp Lethality Test BSLT, was carried out. Sponge sample of haliclona sp was taken in 10-m depth from West Kalimantan waters. It was concluded that one type of bacteria that actively cytotoxic with LC50 in methanol extract was 55 ppm. Taxonomical examination and biochemical test showed that the identified bacteria is Serratia sp. More sponge species will be required for this kind of test in the future.

A Preliminary Study of Bioactivity and Identification of Secondary Metabolite Functional Groups in Extracts of Agelas nakamurai Hoshino Sponge from Spermonde Archipelago, Indonesia Ajuk Sapar; Alfian Noor; Nunuk Hariani Soekamto; Tri Aryono Hadi
Marina Chimica Acta Vol. 14 No. 2 (2013): Volume 14 No. 2 (2013)
Publisher : Hasanuddin University

Uji pendahuluan bioaktivitas dan identifikasi gugus fungsi metabolit sekunder ekstrak dalam metanol, n-heksan and metilen klorida dari spons Agelas nakamurai Hoshino, asal pulau Kapoposang, kepulauan Spermonde telah dilakukan. Juga test bioaktivitas dilakukan menggunakan Artemia salina (LC50) untuk mendapatkan konsentrasi letalnya. Hasilnya LC50 adalah 187.932 ppm yang menunjukkan potensi ekstrak sebagai obat anti kanker. Identifikasi komponen dengan reagensia spesifik seperti Lieberman- Burchard, Mayer, Wagner, Dragendorff dan Salkowski ditambah hasil analisis FTIR menunjukkan kandungan komponen ekstrak seperti alkaloid, steroid and terpenoid. Karakteristik pita serapan alkaloid adalah for alkaloid adalah stretching NH at 3600 to 3400 cm-1 dan stretching pendukung C-N at 1250 to 1930 cm-1. Komponen spesifik untuk Agelas nakamurai adalah substitusi bromo dalam alkaloid yang ditandai oleh munculnya pita serapan C-Br medium pada 760 to 745 cm-1.

INITIAL FORMATION OF SPERMONDE ARCHIPELAGO, THE LARGEST REEF PLATFORM IN INDONESIA, EFFORT TO DISCLOSE ITS TIME FRAME Alfian Noor; Maming Gaffar; Muhammad Zakir
Marina Chimica Acta Vol. 16 No. 2 (2015): Volume 16 No. 2 (2015)
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/mca.v16i2.2543

Coral samples were taken from Langkai island waters of Spermonde archipel at four meter depth using university boat and equipped with professional diver. After having been washed, samples were brought into laboratory and cleaning coral by chemical and physical separation. Grinded sample was then acidified with hydrochloric acid 10% to produce CO2 gas, coral origin, and finally absorbed in 5N sodium hydroxyde solution forming Na2CO3 and then calculating carbon amount by volumetric analysis. Eight mL of solution was mixed with twelve mL scintillating solution before measuring it in liquid scintillation counter Hidex 300 SL. Results showed that specific activity of carbon-14 in sample was 14.72 dpm/gC equivalent to 317 years. By application of absorbers other than NaOH, results were relatively the same. It can be concluded that the coral age investigated in Spermonde archipel was about 317 years. Further investigations are required to confirm the results especially in area and depth variations.

CHARACTERIZATION OF SEA GRAPES (Caulerpa lentillifera) FROM VIETNAMESE COMPANY’S PRODUCTS Imran Lapong; Nicholas Paul; Akbar Reza
Marina Chimica Acta Vol. 20 No. 2 (2019): Volume 20, No. 2 (2019)
Publisher : Hasanuddin University

Species of sea grapes (Caulerpa spp.) are consumed broadly in many regions such as in Southeast Asia and Pacific areas. However, it damages easily if packed incorrectly and may only last for couple of days. A company in Vietnam (Tritin Pty Ltd) has developed a preservation technique for sea grapes that enables export to many countries. The aim of this study is to characterization of the Vietnamese company’s product of Caulerpa. The study found that the product based on a 10% brine concentration (114.33 g/L ±2.30 SD). The average weight of each sachet package is 22.47 g ±0.37 containing 65 fronds of Caulerpa lentillifera. The average weight and length of the fronds is 0.73 g ±2.30 SD and 7.27 cm ±1.59 SD. There was a significant relationship between the weight and the length of the fronds during the rehydration process in freshwater (R2=0.35, p<0.01), with rehydration of weight and length complete after x seconds

UTILIZATION OF METHYLAMINE COMPOUND AS CO2 ABSORBENTS FOR Andi Agung Perdana; Maming Maming; Muhammad Zakir
Marina Chimica Acta Vol. 16 No. 1 (2015): Enzyme from Bacteria and Coral Age
Publisher : Hasanuddin University

Utilization of methylamine as CO2 absorbent to measure carbon-14 activity of coral sample has been done. The objective of this research is to Determine the age of Coral Sample through Activity Measurements of carbon-14 with LSC (Liquid Scintillation Counting) method. Sample were taken from Langkai Island which is far from human activities. Sample preparation includes physical and chemical leaching to produce a clean white sample. Carbon in the sample was released as CO2 by reaction with HCl 10 % and than absorbed by methylamine yield carbamate compound. Absorbed carbon in 1 mL absorber was 0,044 g from the results of weight reduction before and after absorption. The specific activity of the coral sample was 14.56 DPM/g C. Age of the coral sample based on the specific activity was 408.48 ± 43.69 years.

The Use of callispongia sp from Halong waters (Ambon Bay) as Biomonitor for Trace Metals Pb,Cd,Cr and Zn Netty Siahaya; Alfian Noor; Nicole de Voogd
Marina Chimica Acta Vol. 13 No. 2 (2012): Volume 13 No. 2 (2012)
Publisher : Hasanuddin University

The aim of this investigation is to estimate metal concentration distribution, Pb,Cd, Cr, and Zn,in Callispongia sp, sediment and water column in Halong waters of Ambon bay. After sampling, analytical processes were carried out according to Warsidah (2001) and measure it by ICP-OES (Inductively Coupled Plasma Optical Emission Spectroscopy). The Results showed that callispongia sp, contain highest metal concentration compared to water and sediment that is 9.56 mg/kg dry weight (ppm) of Zn while sediment was of 0.5 ppm and in waters 0,750 ppm. It can be concluded that the role of spongest in absorbing trace metals must not be underestimated. In the future more research in this area need to be conducted so that an alternative local solution for trace metal pollution can be constructed.

ASSESSMENT OF MICRONUTRIENT (Fe, Cu AND Mn) CONCENTRATIONS IN SOIL FROM CACAO PLANTATION COASTAL AREAS, EAST LUWU REGENCY Ina Oktaviani Simanjuntak; Alfian Noor; Nursiah La Nafie; Asma Assa
Marina Chimica Acta Vol. 20 No. 1 (2019): Volume 20, No. 1 (2019)
Publisher : Hasanuddin University

Micronutrients Fe, Cu and Mn, despite being required in only small amount, have an important role in cacao plant metabolism. This study aims to assess of micronutrient (Fe, Cu and Mn) concentrations in soil from cacao plantation coastal areas, East Luwu Regency. Availability of micronutrient (Fe, Cu and Mn) were analyzed by dry ash method and measured with Inductively Coupled Plasma (ICP). The results showed that Iron (Fe) was represented in large quantities (788.80 mg/100 g). Copper (Cu) and Manganase (Mn) were represented in small quantities 21.65, and 4.34 mg/100 g, respectively.

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Nursiah La Nafie

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Journal Mail Official
marinachimicaacta@unhas.ac.id

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Kota makassar,

Sulawesi selatan

INDONESIA