Effect of Inorganic Salts on Profenofos Pesticide Degradation of Immobilized Pseudomonas plecoglossicida strain PF1 and Acinetobacter baylyi strain GFJ2
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Abstract
Profenofos commonly used in organophosphate pesticides has been detected and contaminated in environment. The in situ biodegradation of profenofos required suitable environmental conditions to support microorganisms. The cell immobilization technique has been initiated to improve biodegradation. The study aimed to investigate on the influence of environmental conditions (inorganic salts) on profenofos biodegradation by immobilized microbial cells. Pseudomonas plecoglossicida strain PF1 (PF1) and Acinetobacter baylyi strain GFJ2 (GFJ2) in calcium alginate immobilization matrices were selected. The inorganic salts including NaCl, MgSO4, and CaCO3 with the concentrations of 0 to 1,000 mg/L were applied. The result showed that profenofos biodegradation by the immobilized PF1 and GFJ2 (50-90%) was better than that by the free cells (40-70%). Profenofos biodegradation by immobilized PF1 and GFJ2 under presence of inorganic salts obviously decreased.
Article Details
วารสารวิศวกรรมฟาร์มและเทคโนโลยีควบคุมอัตโนมัติ (FEAT Journal) มีกําหนดออกเป็นราย 6 เดือน คือ มกราคม - มิถุนายน และกรกฎาคม - ธันวาคม ของทุกปี จัดพิมพ์โดยกลุ่มวิจัยวิศวกรรมฟาร์มและเทคโนโลยีควบคุมอัตโนมัติ คณะวิศวกรรมศาสตร์มหาวิทยาลัยขอนแก่น เพื่อเป็นการส่งเสริมและเผยแพร่ความรู้ ผลงานทางวิชาการ งานวิจัยทางด้านวิศวกรรมศาสตร์และเทคโนโลยีพร้อมทั้งยังจัดส่ง เผยแพร่ตามสถาบันการศึกษาต่างๆ ในประเทศด้วย บทความที่ตีพิมพ์ลงในวารสาร FEAT ทุกบทความนั้นจะต้องผ่านความเห็นชอบจากผู้ทรงคุณวุฒิในสาขาที่เกี่ยวข้องและสงวนสิทธิ์ ตาม พ.ร.บ. ลิขสิทธิ์ พ.ศ. 2535
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