Xref: utzoo rec.food.cooking:10657 rec.food.drink:3224 sci.bio:2248
Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!iuvax!pur-ee!pc.ecn.purdue.edu!cb.ecn.purdue.edu!martenm
From: martenm@cb.ecn.purdue.edu (The Yeastmaster)
Newsgroups: rec.food.cooking,rec.food.drink,sci.bio
Subject: Re: Rootbeer discussion
Keywords: fermentation, respiration, glycolysis
Message-ID: <1126@cb.ecn.purdue.edu>
Date: 28 Aug 89 16:56:34 GMT
References: <1985@leah.Albany.Edu>
Reply-To: martenm@cb.ecn.purdue.edu.UUCP (The Yeastmaster)
Organization: Purdue University Engineering Computer Network
Lines: 16



S. cerevisiae can and do produce ethanol under aerobic conditions.
This phenomena is called the "Crabtree" effect and is more pronounced
at higher substrate levels. This presents a problem to those attempting
to maximize biomass production as the substate is made into a byproduct,
(EtOH) as opposed to the desirable primary product (yeast biomass
or some particular protein).

In our lab we study the localization of secreted protein from
recombinant S. cerevisiae and we constantly struggle with this 
problem.
-- 
 Mark Marten                | "He is no fool to give what he can not 
 Purdue University          |  keep to gain what he can not lose."  
 martenm@cb.ecn.purdue.edu  |        -- Jim Elliot