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All Journal Torani Journal of Fisheries and Marine Science Jurnal Ilmu Kelautan Spermonde Majalah Obat Tradisional Indonesian Journal of Chemistry
Akbar Tahir, Akbar
Universitas Hasanuddin
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Economics, Econometrics & Finance Environmental Science Health Professions Medicine & Pharmacology Public Health Social Sciences

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SHORT-TERM OBSERVATION ON MARINE DEBRIS AT COASTAL AREAS OF TAKALAR DISTRICT AND MAKASSAR CITY, SOUTH SULAWESI-INDONESIA Tahir, Akbar; Werorilangi, Shinta; Isman, Fajar Maulana; Zulkarnaen, Adi; Massinai, Arniati; Faizal, Ahmad
Jurnal Ilmu Kelautan SPERMONDE VOLUME 4 NUMBER 2, 2018
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/jiks.v4i2.7061

Abstract

Marine debris is defined as material that is solid, persistent, manufactured or processed, and deliberately or not-deliberately left in the marine environment. Marine debris comes in many shapes and forms, ranging in size from microscopic microplastics to large vessels. Marine debris is a big and growing global problem, pose threats to marine life sustainability. Plastic is a major component of marine debris, and single-use packaging accounts for an increasing part of the global marine debris load. Research on marine debris was conducted on coastal areas and Small Island of South Sulawesi destined for local tourism, i.e., Karama beach, Bodia beach and Mandi beach (Galesong, Takalar District), Tanjung Bayang beach, Akkarena beach and Lae-lae island/also known as Bob beach (Makassar City). This research was aimed at identifying marine debris according to its types, size, and mass. Debris was collected in a 25 x 60 m transect with direction 30 m towards land and waters, respectively, with 3 replication transects at every location, whilst collections of debris were conducted during low and high tides. Current (direction and speed) and waves (incoming direction and height) were also measured as supporting parameters. Surrounding sampling location characteristics were also recorded. The result showed that Karama beach is found with highest total marine debris mass in Takalar (36.44 kg), whilst in Makassar, the Lae-lae island was found to be the highest with debris mass (43.22 kg). Plastic was predominant debris at all sampling locations with percentages of 62.7 – 86.6%. Lastly, the predominant size was macro-debris (25-100 cm).
HEAVY METALS CONTENT OF COPPER (CU) AND LEAD (PB) IN CODIUM FRAGILE SEAWEED Hidayatullah, Nasrul; Yasir, Inayah; Tahir, Akbar
Jurnal Ilmu Kelautan SPERMONDE VOLUME 9 NUMBER 1, 2023
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/jiks.v9i1.19767

Abstract

This study aims to determine the concentration of copper (Cu) and lead (Pb) inseaweed Codium fragile and is expected to add information about copper (Cu) and lead (Pb) which accumulates inseaweed C. fragile in Puntondo waters. , Takalar Regency. This research was conducted from January to August 2021, located in Puntondo waters, Takalar Regency. This research method collects data in the form of seaweed samples from the field and seaweed obtained from seaweed sales. Data analysis was carried out using the One Way Anova test with a further test of LSD (Least Significant Difference). The results of this study indicate that the metal content of copper (Cu) at each research station in seawater and C. fragile samples has passed the threshold, while the content of lead (Pb) at each station in seawater and C. fragile samples has not passed the threshold based on PP No. 22 of 2021 (<0.008 mg/L) for sea water and BPOM Regulation No. 23 of 2017 (<0.2 mg/kg) for consumption materials. The metal content of copper (Cu) in seawater at each research station was significantly different and the metal content of copper (Cu) in C. fragile at each research station was not significantly different. The metal content of lead (Pb) in C. fragile seaweed at each research station was significantly different and the metal content of lead (Pb) in seawater at each station was below the detection limit of the instrument (<0.01 ppm). The highest content of copper (Cu) in seawater was found at stations near from the ships activity, that is 0.3625 mg/L, followed by stations close to settlements at 0.235 mg/L. The highest content of copper (Cu) in C. fragile was found at stations close to settlements at 6.63 mg/kg followed by stations at PPI Beba at 6.1575 mg/kg and stations close to ships activity at 4,965. mg/kg.
Antibacterial Activities of Novel Xestospongienol Compounds: Potential Natural Agents Against Vibrio sp. Latifah, Lulu Adilla; Soekamto, Nunuk Hariani; Tahir, Akbar
Indonesian Journal of Chemistry Vol 26, No 2 (2026)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijc.101132

Abstract

The marine sponges, especially Xestospongia, belonging to the class Demospongiae, order Haplosclerida, family Petrosiidae, produce diverse bioactive secondary metabolites, which can be the source of potentially valuable marine natural products. These secondary metabolites could be used as alternative antibiotics to inhibit pathogenic bacteria Vibrio sp. This study aimed to isolate and characterize active compounds from Xestospongia testudinaria collected from Badi Island, South Sulawesi, Indonesia, and to evaluate their antibacterial potential. Research methods were evaporation, fractionation, purification, identification, and characterization of compounds using 1D and 2D NMR. Pure compounds were determined for their antibacterial activities using agar diffusion method against Vibrio harveyi M-120, Vibrio parahaemolyticus T-170, and Vibrio alginolyticus B-425. The fractionation and elucidation results presented two new compounds: xestospongienol, one of the types of brominated polyunsaturated acetylenic fatty acids (BPUFAs). The inhibition zone value of new compounds is 6.33–7.97 mm, where compound 2 showed higher activity than compound 1 against V. harveyi (7.97 mm). This study was the first report on the antibacterial activity of xestospongienol compounds against Vibrio sp., suggesting their potential as natural antibacterial agents.
Co-Authors Abdul Haris Ahmad Faisal Ahmad Faizal Alexander Rantetondok, Alexander Alfian Noor Andi Iqbal Burhanuddin Armi, Nur Khairunisa Arniati Massinai, Arniati arniati, arniati Gemini Alam Gemini Alam Herlina Rante Herlina Rante Hidayatullah, Nasrul Inayah Yasir Isman, Fajar Maulana Isman, Fajar Mulana Isman, Muhammad Isyrini, Rantih Jamaluddin Jompa Khairul Amri Lulu Adilla Latifah, Lulu Adilla M Natsir Nessa, M Natsir M. Farid Samawi, M. Farid Mahatma Lanuru Nunuk Hariani Soekamto Rachim, Rastina Rahmadi Tambaru Rastina, Rastina Risfah Yulianty Risfah Yulianty Samawi, Muh. Farid Shinta Werorilangi, Shinta Supriadi - Syafyudin Yusuf Zulkarnaen, Adi