Sürdürülebilir Kalkınma Amaçları

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Yazarlar

• Alp, Ibrahim(1)
• Cicek, Mustafa(1)
• Dilaver, Irem(1)
• Erkan, Ilker(1)
• Imamoglu, Melih(1)
• Karaca, Yunus(1)
• Pasli, Sinan(1)
• Sahin, Aynur(1)
• Tatli, Ozgur(1)
• Yadigaroglu, Metin(1)
• Yulug, Esin(1)

• MakaleAçık Erişim2025/r/gumushane/11673
  Sulfur Removal From Low-Grade Turkish Kaolin Clay

  Erkan, Ilker; Alp, Ibrahim

  This study investigated the effects of NaOH direct leaching for sulfur removal from a kaolin ore from the Balıkesir region, Turkey. Characterization studies were undertaken before sulfur removal studies to enlighten the structure and originate the source of sulfur. The characterization studies revealed that the ore was mainly composed of quartz, with sulfur originating from alunite minerals with opal inclusions. The leaching process was tested under varying NaOH concentrations (1.5–2 M), temperatures (95 ± 2°C), and durations (2 h) in temperature-controlled closed systems to maintain consistency. Results demonstrated complete (100%) sulfur removal from alunite under optimal conditions. However, significant mass losses (18.15%–45%) occurred because of the dissolution of kaolinite along with alunite, indicating the method's effectiveness in sulfur removal but also its potential drawbacks for kaolinite retention.

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• MakaleYalnız künye2020/r/gumushane/16405
  Potential therapeutic effects of ethyl pyruvate and N-acetyl cysteine in an experimental rat model of corrosive esophageal

  Tatli, Ozgur; Pasli, Sinan; Imamoglu, Melih; Cicek, Mustafa; Yadigaroglu, Metin; Sahin, Aynur; Dilaver, Irem; Yulug, Esin; Karaca, Yunus

  Background and study aims: Esophageal burns due to ingestion of corrosive substances are frequently seen in both children and adults. However, there is no standard method of treatment to prevent associated mortality and morbidity. Therefore, this study aimed to evaluate the effects of known antioxidants, namely N-acetyl cysteine and ethyl pyruvate, on esophageal damage due to sodium hydroxide-induced corrosive burns. Materials and methods: Thirty-five female rats were randomly assigned to five equal groups. Group 1 was the sham group, while Group 2 was the control group. Group 3 received N-acetyl cysteine, Group 4 received ethyl pyruvate, and Group 5 received both N-acetyl cysteine and ethyl pyruvate. Rats in the burn groups were gavage-fed with 0.2mL of 25% NaOH. All esophagi were extracted on day 4 for histopathological evaluation. Results: Total histopathological damage scores were evaluated at the end of the study. Groups 3 and 5 were significantly different from the control group in terms of total histopathological scores (p = 0.001), while no significant difference was seen with Group 4. Stenosis index results in groups 3 and 5 were similar to those seen with total histopathological scores (p = 0.004). Conclusion: N-acetyl cysteine, alone or in combination with ethyl pyruvate, may be useful in the treatment of esophageal damage associated with corrosive substances and in achieving histopathological improvement in an experimental setting. (C) 2020 Pan-Arab Association of Gastroenterology. Published by Elsevier B.V. All rights reserved.

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