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All Journal Makara Journal of Science Jurnal Natural
Lahna, Kurnia
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Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Chemistry Earth & Planetary Sciences Energy Immunology & microbiology Neuroscience Physics

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Identification ratio of Si/Ti and Ca/Ti content by X-Ray Fluorescence in tsunami soil samples LAHNA, KURNIA; MITAPHONNA, RARA; RAMLI, MULIADI; ISBAH, FALIQUL; YUSIBANI, ELIN; FAUZI, FAUZI; ISMAIL, NAZLI; IDRS, NASRULLAH
Jurnal Natural Volume 24 Number 1, February 2024
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jn.v24i1.35429

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Earthquakes and tsunamis natural disasters have repeatedly occurred on the coast of Aceh province, which lies between the confluence of two plates. The tsunami deposits in this area can provide important information regarding the reconstruction of marine attacks by past earthquakes and tsunamis. In general, tsunami deposits can be identified based on their geological, sedimentological, paleontological, and geochemical characteristics. In our research work, spectrometry X-ray fluorescence (XRF) has been utilized to investigate the geochemical signatures of tsunami-affected soil samples in Aceh province at three tsunami-impacted areas, namely Aceh Besar regency, Banda Aceh City, and Aceh Barat regency. The sampling point is located about a kilometer from the coastal line. Our findings indicate that tsunami-affected soils in Aceh Province after 10 years struck by tsunami contain terrestrial markers such as Fe and Ti, carbonate markers (Mg, Ca), and heavy metals elements (Cr, Ni, Cu, Zn, and Sr). On the other hand, in our study, the concentration ratios of several elements such as Si/Ti and Ca/Ti seem most suitable as a chemical signature for differentiating environmental conditions such as the 2004 Indian Ocean tsunami event. It could be noticed that geochemical analysis by XRF can be applied to characterize the tsunami-affected soils in several coastal areas of Aceh province.
Comparing the Effectiveness of Eggshell Spectra from Laser-Induced Break-down Spectroscopy and Near-Infrared Spectroscopy Using Principal Compo-nent Analysis to Determine the Authenticity of Organic Eggs Qusthalani, Ahmad; Mitaphonna, Rara; Ramli, Muliadi; Rajibussalim, Rajibussalim; Lahna, Kurnia; Zaini, Nasrullah; Idris, Nasrullah
Makara Journal of Science Vol. 29, No. 4
Publisher : UI Scholars Hub

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This study aimed to explore the potential of modern spectroscopy in the authentication of organic and non-organic chicken eggs using near-infrared spectroscopy (NIRS) and laser-induced breakdown spectroscopy (LIBS) spectra. A total of 175 eggs were analyzed, which were grouped into seven categories based on the source of feed given: 100% organic, 100% non-organic, 75% organic, 75% non-organic, 50% organic, free-range chickens, and eggs obtained from the local traditional market. Each group consisted of 25 eggs. NIRS spectra were recorded in the wavelength range of 350–2500 nm, whereas LIBS spectra were recorded in the range of 200–900 nm. A total of 350 spectral data were normalized and processed using multiplicative scatter correction, Savitzky–Golay filter, and detrending before being analyzed with principal component analysis (PCA). Analysis based on the PCA score plot showed that NIRS successfully distinguished organic and non-organic eggs with a separation percentage of 100%, whereas LIBS achieved a separation percentage of 86%. These results indicate that NIRS has significant advantages over LIBS in the authentication of organic and non-organic eggs. In addition, eggs from the uncaged chicken category showed similar spectral patterns to eggs from chickens fed 100% organic feed. Eggs obtained from the local traditional market were evenly distributed in the organic and non-organic groups. This study provides an important contribution to the development of nondestructive methods for controlling the quality and authentication of eggs in the food industry.
Co-Authors Elin Yusibani Faliqul Isbah Fauzi Fauzi IDRS, NASRULLAH Mitaphonna, Rara Muliadi Ramli Nasrullah Idris Nazli Ismail Qusthalani, Ahmad Rajibussalim Rajibussalim Zaini, Nasrullah