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All Journal Dental Journal (Majalah Kedokteran Gigi) Jurnal Hasil Penelitian Industri
Darmawan Darwis
Pusat Aplikasi Isotop dan Radiasi (PAIR)-BATAN, Jl. Lebak Bulus Raya No. 49, Jakarta Selatan, Indonesia
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Dentistry Energy Environmental Science

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PENGARUH IRADIASI BERKAS ELEKTRON TERHADAP ASAM-ASAM ORGANIK, ASAM AMINO DAN ANALISIS PROKSIMAT JAMUR KUPING (Auricularia auricula) KERING (Irradiation Effect of Electron Beams on Organic Acids, Amino Acids and Proximate Analysis of Dried Ear Fungus (Auri Kadir, Idrus; Darwis, Darmawan
Jurnal Hasil Penelitian Industri Vol 29, No 1 (2016)
Publisher : Baristand Industri Banda Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (23.353 KB)

Abstract

Has been conducted research on the effects of electron beam irradiation on organic acids,amino acids and proximate analysis of dried ear mushroom (Auricularia auricula). Ear Mushroom is a typeof edible mushroom which is very popular with consumers, therefore, post-harvest handling in the form ofdried mushrooms is very important to maintain an economical agribusiness chain. Handling of driedmushroom with electron beam irradiation was performed. The purpose of this study was to determine theeffect of electron beam irradiation at a dose of 5 kGy to the content of organic acids (acid of propionate,acetate, butyrate, citrate, lactate, and oxalic acid) and proximate analysis of dried mushroom. The resultsshowed that irradiation at 5 kGy increase the content of citric acid and oxalic acid significantly lowered.While on amino acid and proximate analysis (moisture, fat, protein, and carbohydrates) as well as pH,water activity (aw) and density of dried mushroom, irradiation at a dose of 5 kGy relatively not change thevalue of amino acid as well as proximate analysis value as well as pH, aw and density of the fungus.
Degradation rate and weight loss analysis for freeze-dried, decellularized, and deproteinized bovine bone scaffolds Vidarta, Ramadhan Pramudya; Kamadjaja, David Buntoro; Danudiningrat, Coen Pramono; Amir, Muhammad Subhan; Rizqiawan, Andra; Yuliati , Anita; Darwis, Darmawan
Dental Journal (Majalah Kedokteran Gigi) Vol. 58 No. 1 (2025): March
Publisher : Faculty of Dental Medicine, Universitas Airlangga https://fkg.unair.ac.id/en

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/j.djmkg.v58.i1.p23-29

Abstract

Background: Mandibular defects, often caused by trauma, tumors, infections, and congenital issues, are commonly treated with bone grafts. Tissue engineering plays a crucial role in bone reconstruction, with scaffolds such as deproteinized bovine bone matrix (DBBM), freeze-dried bovine bone (FDBB), and decellularized FDBB (Dc-FDBB) being studied for their efficacy. Decellularization reduces the antigenic potential of FDBB. These scaffolds are designed to degrade within the body. Purpose: To analyze the weight loss and degradation rates of FDBB and Dc-FDBB materials, using DBBM as a control. Methods: This in vitro experimental study, conducted over 2 months, employed a cross-sectional approach to analyze the weight loss and degradation rates of FDBB, Dc-FDBB, and DBBM scaffolds in a simulated body fluid (SBF) solution. Results: Under dynamic immersion conditions, DBBM exhibited the highest daily weight loss at 0.741% and a degradation rate of 0.466 mg/cm²/day, followed by Dc-FDBB at 0.568% and 0.418 mg/cm²/day and FDBB at 0.525% and 0.385 mg/cm²/day. Under static immersion conditions, DBBM also showed the highest weight loss at 0.255%, with a degradation rate of 0.165 mg/cm²/day, followed by Dc-FDBB at 0.245% and 0.163 mg/cm²/day, and FDBB at 0.168% with a degradation rate of 0.126 mg/cm²/day. Significant differences were observed between scaffold groups (p = 0.000). Conclusion: DBBM, Dc-FDBB, and FDBB scaffolds meet the optimal requirements for tissue engineering materials based on their weight loss and degradation rates. DBBM demonstrated the highest values among the scaffolds analyzed.
Co-Authors Amir, Muhammad Subhan Andra Rizqiawan David B. Kamadjaja Idrus Kadir RM Coen Pramono D Vidarta, Ramadhan Pramudya Yuliati , Anita