Screening of Methyl Red Degrading Bacteria Isolated from Textile Effluents of Savar Area, Dhaka, Bangladesh

• 作者: Farhana Haque Ishteak Ahmed Md. Anowar Khasru Parvez Mirza A. T. M. Tanvir Rahman Taslin Jahan Mou
• 来源期刊: 生命科学与技术进展(英文)
• 学科: 数学
• 关键词: Textile Effluent Metal Resistant Dye Decolorizer Proteus mirabilis
• 年，卷（期）: 2020,（7）
• 页码范围: 301-318
• 页数: 18页
• 分类号: O17

摘要

Physicochemical properties and metal contents of five dye-based textile effluents collected in summer and winter season, 201<span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;">6</span></span></span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;"> from Savar, Dhaka, Bangladesh were within the recommended acceptable limit. The average value of all physicochemical parameters was found high in summer season except turbidity. A total of 94 heavy metal resistant bacteria (46 gram positive & 48 gram negative) were isolated from textile effluent sample</span></span></span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;">s</span></span></span><span><span><span style="font-family:;" "=""><span style="font-family:Verdana;"> and among them 17 isolates were multi metal resistant. Highest tolerance level of the isolates was shown at 10 mM concentration against Pb. All the heavy metal resistant bacterial isolates were presumably grouped into 14 genera according to mor</span><span style="font-family:Verdana;">phological and biochemical assay. Three isolates designated WFB3c</span><span style="font-family:Verdana;"> (65.41%),</span><span style="font-family:Verdana;"> WFB4g (62%) and SFB5c (60.07%) were found to potentially degrade dye as </span><span style="font-family:Verdana;">well as tolerate heavy metal</span></span></span></span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;">s</span></span></span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;">. Three potential dye decolorizer isolates were</span></span></span><span><span><span style="font-family:;" "=""> <span><span style="font-family:Verdana;">screened out and most potential one (WFB3c) was identified as </span><i><span style="font-family:Verdana;">Proteus</span></i></span><span style="font-family