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A Simple Method for DNA Extraction from Activated Sludge


Paper Type 
Contributed Paper
Title 
A Simple Method for DNA Extraction from Activated Sludge
Author 
Dounghatai Singka, Ladapa Kumdhitiahutsawakul, Prasert Rekkriangkrai and Wasu Pathom-aree
Email 
wasu.p@cmu.ac.th
Abstract:

A  protocol  for  DNA  extraction  directly  from  activated  sludge  is  described. Sludge  samples  were  lysed  by  glass  bead  and  CTAB. The  extracted  DNA  was  purified  with  phenol: chloroform: isoamyl  alcohol  mixture  and  precipitated  in  sodium  acetate  and  isopropanol. The  proposed  protocol  is  simple, rapid  and  required  small  sample  size, yielding  about  40.5 ± 1.8 μg  DNA  g-1  sludge. The  quality  of  DNA  is  good  enough  for  successful  PCR  amplifications  of  16S  rDNA, 16S rDNA  V3  region  and  denaturing  gradient  gel  electrophoresis (DGGE) analysis  of  archaeal  population. This  described  method  can  also  be  applied  to  other  environmental  samples  such  as  whey  and soil.

Start & End Page 
111 - 118
Received Date 
2011-07-04
Revised Date 
Accepted Date 
2011-11-04
Full Text 
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Keyword 
Activated sludge, DNA extraction, DGGE, Archaeal population
Volume 
Vol.39 No.1 (JANUARY 2012)
DOI 
SDGs
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Chiang Mai Journal of Science

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