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All Journal Teknosains: Media Informasi Sains dan Teknologi SITEKIN: Jurnal Sains, Teknologi dan Industri JOURNAL ONLINE OF PHYSICS Jurnal Fisika FLUX Jurnal Pendidikan Fisika Jurnal Ilmu Fisika Jambura Physics Journal KARST : Jurnal Pendidikan Fisika dan Terapannya Jurnal Fisika dan Terapannya Progressive Physics Journal Media Ilmiah Kesehatan Indonesia
jumardin jumardin
Physics Department, UIN Alauddin Makassar
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The Effect of Time and Dose from Gamma Irradiation (Cesium-137) on Protein Levels and Meat Color Index of Cork Fish (Channa Striata) Janna, Miftahul; Fuadi, Nurul; Jumardin, Jumardin; Sahara, Sahara; Isradianti, Dwi Febri; Hidayat, Serli Hatul
SITEKIN: Jurnal Sains, Teknologi dan Industri Vol 22, No 1 (2024): December 2024
Publisher : Fakultas Sains dan Teknologi Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/sitekin.v22i1.25387

Abstract

The study aimed to determine the effect of time and dose of gamma-ray irradiation on protein levels and storability based on the red color index of cork fish (channa striata). The results showed that the longer the irradiation time and the larger the dose given, the higher the protein level and absorbance value produced. The method used was UV-Vis spectrophotometry to determine protein levels and Image-J software to see the shelf life based on the red colour index. The sample consisted of control, irradiated with irradiation time of 35 minutes (6 mGy), 40 minutes (7 mGy) and 45 minutes (8 mGy) and an irradiation distance of 150 cm. The protein levels at control time, which were recorded at 35, 40, and 45 minutes, were 0.138%, 0.187%, 0.276%, and 0.347%, respectively. These results suggest that there may be a correlation between time and protein levels. Further analysis may be needed to fully understand the implications of these findings. The percentage close to stable on the first day with percentages of 1.54%, 1.66%, 1.76%, 2.50%. Additionally, it seems that a higher dose of irradiation may also result in a higher protein content and absorbance value.Keywords: Cesium-137, Cork Fish, Irradiation, Protein, UV-Vis Spectrophotometer 
Analisis kadar protein udang vaname (Litopenaeus vannamei) oleh pengaruh iradiasi gamma (Cesium-137) Mahyuddin, Rahmawati; Fuadi, Nurul; Jumardin, Jumardin; Zelviani, Sri; Isradianti, Dwi Febri; Hidayat, Serli Hatul
Teknosains Vol 18 No 2 (2024): Mei-Agustus
Publisher : Fakultas Sains dan Teknologi Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/teknosains.v18i2.45440

Abstract

Vannamei shrimp (Litopenaeus vannamei) is a fishery product that is prone to spoilage due to microbes during storage, hence finding solutions to extend its shelf life is necessary. One effective technique to inhibit microbial growth is non-thermal preservation using gamma irradiation. However, the irradiation dose must be carefully considered to avoid reducing the protein content in the shrimp. This study aims to determine the effect of gamma irradiation dose (Cesium-137) on the protein content of vannamei shrimp. The research method used Cesium-137 irradiation with varying doses of 0 mGy (control), 10 mGy (0.4 hours), 30 mGy (0.9 hours), and 50 mGy (1.3 hours). Sample irradiation was performed at a constant distance of 100 cm. Protein content was determined using Uv-Vis spectrophotometry, referencing standard curves and Bovine Serum Albumin (BSA) solution concentrations. The results showed protein contents of 0.146%, 0.180%, 0.268%, and 0.316%, respectively. These results indicate that protein content has a significant relationship with the radiation dose and irradiation time of Cesium-137. This study suggests that gamma irradiation can be used to extend the shelf life of vannamei shrimp without significantly reducing protein content.
ANALISIS NILAI COMPUTED TOMOGRAPHY DOSE INDEX (CTDI) PADA PHANTOM KEPALA DI INSTALASI RADIOLOGI RUMAH SAKIT UMUM DAERAH SAYANG RAKYAT MAKASSAR Ilham, Ilham; Zelviani, Sri; Jumardin, Jumardin; Bariah, Khaerul
JOURNAL ONLINE OF PHYSICS Vol. 10 No. 1 (2024): JOP (Journal Online of Physics) Vol 10 No 1
Publisher : Prodi Fisika FST UNJA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jop.v10i1.37149

Abstract

This research aims to determine the CTDI value on a CT Scan aircraft using Dose Profiler and to determine the comparison of the CTDI (Computed Tomography Dose Index) value on the surface of each measurement position. The measurement method was carried out by measuring the CT Scan radiation dose with the CTDI value on the phantom using a RaySafe multimeter at a voltage of 130 kV, using a thickness of 10 mm, a time current accuracy of 100 mAs, 200 mAs and 300 mAs. The research results show the dose received on the surface of each type of phantom position with different time current accuracy respectively for a time current of 100 mAs at the center (9.139 mGy), type 1 (9.606 mGy), type 2 (9.170) type 3 (9.221) , and type 4 (9,210). A time current of 200 mAs is found at the center (9,110 mGy), edge 1 (9,578 mGy), edge 2 (9,546 mGy), edge 3 (9,224 mGy), and edge 4 (9,200 mGy). A time current of 300 mAs is found at the center position (18.39 mGy), edge 1 (19.33 mGy), edge 2 (19.18 mGy), edge 3 (18.48 mGy), and 4 (18.51 mGy) . Time-current variations affect the radiation dose that can be received by the phantom and have a linear influence on the CTDIvol value.
The Synthesis and Characterization of Structural Properties of Hydroxyapatite from Cuttlefish Shell Using X-Ray Diffraction Method Sitti; Jumardin, Jumardin; Fuadi, Nurul
JPF (Jurnal Pendidikan Fisika) Universitas Islam Negeri Alauddin Makassar Vol 12 No 2 (2024)
Publisher : Pendidikan Fisika UIN Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/jpf.v12i2.50635

Abstract

The preparation of solid hydroxyapatite (HAp) with variations in calcination temperature has been carried out. This study aims to determine the crystal size, dislocation density and crystallinity levels of HAp using XRD. HAp is made by mixing cuttlefish shell powder with a solution of KH2PO4, NaOH and Aquades then drying it for 24 hours. Extraction of CaCO3 from cuttlefish shells using the calcination method at various temperature variations, namely 600 0C, 800 0C and 1,000 0C. XRD test to determine the crystal size value, crystal defects and crystallinity of HAp material. XRD data shows that HAp solids form crystals with smaller sizes (50.97 nm, 48.64 nm and 36.52 nm) when the calcination temperature increases, dislocation density increase (0.38 nm-2.10-4, 0.42 nm-2.10-4 and 0.74 nm-2.10-4) as the calcination temperature increases and the crystallinity value decreases (46.31%, 39.06% and 37.93%) based on changes in calcination temperature.
Analisis Kualitas Citra Tegangan 48 kV dan 50 kV Pesawat Sinar-X Pada Pasien Covid-19 dengan Menggunakan Software Image-J Jumardin, Jumardin; Manarang, Hidayat DG; Umar, Eka Putriani; Normawati, Sitti; Harmiati, Supri
Progressive Physics Journal Vol. 5 No. 2 (2024): Progressive Physics Journal
Publisher : Program Studi Fisika, Jurusan Fisika, FMIPA, Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/ppj.v5i2.1433

Abstract

The process of analysing the quality of radiographic images produced by X-rays with 48 kV and 50 kV tube voltages in Covid-19 patients using ImageJ software has been carried out. The images analysed are the results of thoracic radiographic examinations using the same electric current strength in Covid-19 patients with 48 kV and 50 kV voltage variations. The image results come from converting the analogue format to digital format for further processing. The analysis method uses the FFT (Fast Fourier Transform) method and histogram analysis. Image quality was assessed based on pixel distribution, contrast and SNR (Signal to Noise Ratio) parameters. Visualisation of the distribution can be seen based on histogram analysis. In the histogram, the prominent intensity shows the pixel intensity and the peak width shows the contrast range in the image. If the histogram graph is distributed in the minimum area, the image tends to be dark and vice versa, if the histogram graph is more in the maximum area, the image tends to be bright. The results show that the 48 kV voltage has a more even distribution but has low contrast and SNR values compared to the 50 kV voltage. The results of this study provide an overview of the selection of kinetic parameters in patients and optimisation of X-ray technical parameters to obtain maximum image quality in radiographic diagnosis.
Kualitas Biobriket Variasi Komposisi Tempurung Kelapa, Kulit Kacang Tanah, dan Tinja Sapi sebagai Sumber Energi Alternatif Safitri, Aan; Sahara, Sahara; Jumardin, Jumardin
JFT : Jurnal Fisika dan Terapannya Vol 11 No 2 (2024): DESEMBER
Publisher : Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/jft.v11i2.53708

Abstract

Penelitian fokus pada pengujian biobriket dari komposisi arang tempurung kelapa, kulit kacang tanah, dan tinja sapi dengan perekat tepung kanji. Penelitian ini bertujuan untuk mengetahui kualitas briket yang meliputi parameter kerapatan, kadar air, kadar abu, dan nilai kalor berdasarkan standar SNI. Penelitian ini menggunakan metode karbonisasi untuk tempurung kelapa dan kulit kacang dan pada perlakuan bahan tinja sapi menggunakan metode tanpa karbonisasi. Hasil penelitian menunjukkan bahwa nilai kadar air, kadar abu dan nilai kalor optimal diperoleh pada sampel D masing-masing sebesar 3,5%, 1% dan 5483,26 kal/gram. Untuk pengujian nilai kerapatan briket dari rentang 0,58 gr/????????3 sampai 0,77 gr/????????3. Dari keseluruhan komposisi semuanya memenuhi standar SNI briket dengan sampel terbaik pada komposisi sampel D yang terdiri dari 45% tempurung kelapa, 30% kulit kacang tanah, 15% tinja sapi dan perekat sebanyak 10%.
Effect of Gamma Irradiation (Cesium-137) on the Properties of Chemical Functional Groups from Collagen Extraction of Snakehead Fish Scales (Channa striata) Ferdianti, Andi Tasya; Fuadi, Nurul; Fitriyanti, Fitriyanti; Abidin, Kurniati; Jumardin, Jumardin; Isradiati, Dwi Febri
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 21, No 2 (2024): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v21i2.18122

Abstract

This study aims to determine the absorption spectrum of the functional groups of snakehead fish scale collagen before irradiation and the effect of the dose of Cesium-137 irradiation on the functional groups in snakehead fish scale collagen. The extraction method used is acid extraction. Measurement of the absorption spectrum of collagen samples from snakehead fish scales using an FTIR spectrophotometer. Samples were irradiated using doses of 10 mGy, 30 mGy and 50 mGy. The results of the functional group values before irradiation produce amide A, amide I, amide II and amide III which fill the absorption area of the functional group. The results of the functional group values produced after irradiation for a dose of 10 mGy produced amide I, amide II and amide III which filled the absorption area. Amide A and amide B do not fill the absorption region at a dose of 10 mGy. Doses of 30 mGy and 50 mGy produced amide A, amide I, amide II and amide III which filled the absorption area. Amide B did not fill the absorption area at doses of 30 mGy and 50 mGy. Amide groups that are not detected or do not meet standard collagen functional group standards can be caused by the chemical composition of the fish scale extraction process.
Co-Authors Abdul Munim Abdul Munim Thariq Akhiruddin Maddu Andi Syam Rizal Arif Wijaya Bariah, Khaerul Dwi Febri Isradianti Dwi Febri Isradiati Ferdianti, Andi Tasya Firman firman Fitriana Fitriana Fitriyanti Fitriyanti Harmiati, Supri Hidayat, Serli Hatul Ilham Ilham Isnaeni Isnaeni Isnaeni Isnaeni Isradianti, Dwi Febri Janna, Miftahul Jasdar Agus Khaerul Bariah koekoeh santoso Kokoeh Santoso Kurniati Abidin, Kurniati M. Ichzan Mahyuddin, Rahmawati Manarang, Hidayat DG Mersi Kurniati Minarti Minarti Minarti Minarti Muhammad Fawzy Ismullah Massinai Nur Isnaeni Nurhafida Turayni Nurul Fuadi Rahmaniah Nalwi Rahmaniah Nalwi Safitri, Aan Sahara Sahara Sitti Sitti Nurrahmi Suci Khusnul Amelia Supriadi Nurdin Umar, Eka Putriani Wahyullah Wahyullah Zelviani, Sri