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Alissara Reungsang. Optimization of Paraquat Degradation by Microbial Consortium from Rhizosphere Soil. (). Eastern Asia University. Central Library. : , 2560.
Optimization of Paraquat Degradation by Microbial Consortium from Rhizosphere Soil
การหาสภาวะที่เหมาะสมในการย่อยสลายพาราควอทโดยใช้กลุ่มจุลินทรีย์ที่คัดแยก จากดินบริเวณรอบ ๆ รากพืช
Name: Mullika Teerakun
Name: Piyawadee Saraphirom
Name: Alissara Reungsang
ThaSH:
paraquat, soil
Abstract:
The optimization of paraquat degradation by microbial consortium from rhizosphere soil was investigated. The ability of paraquat degradations was evaluated under the variation of media compositions, incubation temperature and initial pH levels. The microbial consortium was acclimatized by being cultured in LB (Luria-Bertani) broth and supplemented with 10 mg/L paraquat before used as seed inoculums. In different paraquat mineral salt medium (PMS), paraquat acts as a carbon and nitrogen source (PMS1), as a carbon source (PMS2) and paraquat act as a nitrogen source (PMS3). All three were used in this study. The media that gave the percentage of paraquat degradation was used for examining of temperature (15, 20, 25, 30, 35, 40 and 45°C) and pH (5, 6, 7, 8 and 9) to degrade paraquat by microbial consortium. The maximum percentage of paraquat degradation (91%) was found in PMS3 and it was significantly different from PMS1 and PMS2 (p < 0.005). It indicated that paraquat was used as nitrogen source for culturing. The highest percentage of paraquat degradation (>90%) was found in PMS3 cultivation during 28 days at 30oC and pH 7. The microbial consortium observed paraquat degrader was performed by serial dilution techniques and spread on PMS3 medium. Three strains of paraquat degrader were obtained as JP1, JP2 and JP3. The morphological characteristic of these strains was investigated under the microscope. JP1 and JP3 were gram positive rod while JP2 was gram negative cocci.
Eastern Asia University. Central Library
Address:
PATHUM THANI
Email:
libraryservice@eau.ac.th
Created:
2560
Modified:
2017-09-01
Issued:
2017-09-01
บทความ/Article
application/pdf
eng
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0.201282 วินาที
Mullika Teerakun
| Title | Contributor | Type |
|---|---|---|
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| Optimization of Paraquat Degradation by Microbial Consortium from Rhizosphere Soil
มหาวิทยาลัยอีสเทิร์นเอเชีย Mullika Teerakun;Piyawadee Saraphirom;Alissara Reungsang | บทความ/Article |
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มหาวิทยาลัยอีสเทิร์นเอเชีย Mullika Teerakun;Piyawadee Saraphirom;Alissara Reungsang | บทความ/Article |
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มหาวิทยาลัยอีสเทิร์นเอเชีย Mullika Teerakun;Piyawadee Saraphirom;Alissara Reungsang | บทความ/Article |