alkaline pH of E. coli medium?

[T V Naga Rama Chander]

hello,
what are the media components/growth conditions that would result in media
pH shifting towards alkaline side instead of acidic side after E. coli
cultivation.
help in the form of any references, tips is welcome.
thanks in advance.

ramchander
 plant tissue culture division	     !
national chemical laboratory	     !
pune-411008.			     !
india.				     !
tel: 91-20-5893300 ext: 2219         !
fax: 91-20-5893438		     !
e-mail: chander at kelvin.ncl.res.in    !

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