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Continuous fermentation to produce xanthan biopolymer: Laboratory investigation
Author(s) -
Silman R. W.,
Rogovin P.
Publication year - 1970
Publication title -
biotechnology and bioengineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.136
H-Index - 189
eISSN - 1097-0290
pISSN - 0006-3592
DOI - 10.1002/bit.260120107
Subject(s) - xanthomonas campestris , biopolymer , fermentation , chemistry , food science , yield (engineering) , urea , dilution , biochemistry , organic chemistry , materials science , polymer , thermodynamics , physics , metallurgy , gene
Xanthan biopolymer has been produced by single‐stage continuous fermentation with Xanthomonas campestris NRRL B‐1459 in a medium of glucose, minerals, distillers' solubles, and urea for as long as 20 days. At the highest dilution rate studied (D = 0.0285 hr −1 ), the steady state rate of xanthan production was 0.36 g/kg/hr and the steady state yield, basis glucose consumed, was 68%. Observations indicate that xanthan production rate is a function of pH and D.