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All Journal MARINA CHIMICA ACTA Indonesia Chimica Acta Nusantara Medical Science Journal Indonesian Journal of Chemistry

Ahyar Ahmad

Chemistry Department, Faculty Of Mathematics And Natural Sciences, Hasanuddin University

Author-ID : 2734467

Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Materials Science & Nanotechnology Neuroscience

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PROFILE OF AMINO ACIDS OF FOREST HONEYS FROM MALLAWA SOUTH SULAWESI Mahdalia Mahmud; Alfian Noor; Ahyar Ahmad
Marina Chimica Acta Vol. 19 No. 1 (2018): Volume 19, No. 1 (2018)
Publisher : Hasanuddin University

Mallawa is one of the areas that has production forests as the second largest honey producer in Maros. The aim of this research determined the profile of amino acids in honey. Amino acids of two forest honeys were analyzed using ultra performance liquid chromatography (UPLC). The main amino acids detected honeys were glutamic acid (1060.66 mg/kg, 928.85 mg/kg), histidine (700.37 mg/kg, 478.02 mg/kg), and arginin (683.11 mg/kg, 665.08 mg/kg), but tyrosine and serine not detected. Some other amino acids, including threonine, leucine, valine, phenylalanine and proline, displayed similar values contents of 239.36 mg/kg, 268.15 mg/kg; 225.81 mg/kg, 293.44 mg/kg; 170.12 mg/kg, 226.03 mg/kg; 174.74 mg/kg, 288.11 mg/kg; and 161.58 mg/kg, 257.44 mg/kg, respectively.

SURFACE TEMPERATURE DISTRIBUTION ANALYSIS USING REMOTE SENSING SYSTEM IN SPERMONDE ESTUARY Rakhmad Armus; Alfian Noor; Ahyar Ahmad; Muhammad Lukman
Marina Chimica Acta Vol. 19 No. 2 (2018): Volume 19, No. 2 (2018)
Publisher : Hasanuddin University

Research on the phenomenon of climate change on the region Makassar Strait waters that are part of the oceanographic activities that require observation of the sea surface temperature (SST), surface currents and ocean color imagery from satellite imagery. In this case, satellite remote sensing data using Aqua-Modis analyze both visually and raw-surface temperature parameter data in order to study a variety of other related phenomena that take place in the ocean. The existence of satellite imagery data for the observation of parameters and / or oceanographic phenomena will be more profitable in terms of time and cost and high accuracy. The purpose of this study was to review based on the description of the SST analysis using Aqua-Modis image data (non-commercial) and open source software in providing the information cepatdan applicable. Bodies Spermonde been considering the seas is quite unique because it is located right in the path of the current meeting of the Pacific Ocean through the sea of Sulawesi and spacious enough for the continuity of mesoscale oceanographic processes for coverage in the waters Spermonde in (islands) Indonesia

PLANKTON ABUNDANCE BETWEEN DRY AND RAINY SEASON IN TALLO FRESHWATER AND PANGKEP RIVER Rakhmad Armus; Alfian Noor; Ahyar Ahmad; Muhammad Lukman
Marina Chimica Acta Vol. 20 No. 2 (2019): Volume 20, No. 2 (2019)
Publisher : Hasanuddin University

Plankton abundance is influenced by seasons, sea surface currents (SSC), nutrients and surface temperature (SST). Is a marine organism has a function to stabilize the surface temperature of the earth by regulating the concentration of Dimetyl sulfide (DMS) due to exposure to direct sunlight. There is the ability of the ocean to regulate warming and to regulate the distribution of water vapor in the atmosphere which is controlled by sea surface temperature. Sampling using the transeck system in September and January represents the rainy season and the dry season which is closest to the Tallo river estuary and the Pangkep river estuary represents the estuary region, towards the coast of the spermonde (Litoral) islands and far from the coast (offshore) from freshwater sources, but the relationship of nutrient entry into estuary areas by sea surface currents (SSC) is still poorly known. The dominant aspect of phytoplankton is determined by the amount of nutrients flowing (runoff) from land to estuary to spermonde waters

Co-Authors Abdul Wahid Wahab Alfian Noor Alfian Noor Alfian Noor Armus, Rakhmad Asrul Sani Emmi Astuti Eva Johannes Firdaus Zenta Hanapi Usman Harningsih Karim Lokita Purnamasari Mahdalia Mahmud Mashuni Mashuni Muh. Nasrum Massi Muhammad Lukman Muhammad Syahrul Rusdianto Rusdianto Seniwati Dali

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