Re: Do any bad-smelling compounds result from anoxic bacterial decomposition of ethanol?

Article View: sci.chem

Article #1787

#1787

From: biovirus04
Date: Tue, 27 Jun 2006 08:00

24 lines
2527 bytes

Radium wrote:

> What odorous chemicals do anaerobic bacteria [excluding the
> acetic-acid-producing bacteria] produce when they feed on ethanol in an
> oxygen-free environment? What do these compounds' odors resemble?

You aren't going to find many bacteria that break down EtOH, let alone
in an oxygen-free environment.  EtOH, in high enough concentrations, is
extremely toxic.  That's why I clean off my lab bench with 70% EtOH.

However, there is an organism called Clostridium kluyveri that breaks
down EtOH anaerobically.  It's the only one I know of that can break
down EtOH, but I'm no expert on metabolism.  The reaction that it
carries out is:

     EtOH + Acetate + CO2  -->  Caproate + Butyrate + H2

Caproate smells like goats.  Butyrate smells like vomit.

Since you have an interest in metabolism, you should look into reading
Brock Biology of Microorganisms.  They're now up to the 11th ed.  The
authors (whom I know personally) do a great job of covering metabolic
diversity.

Technical Details

Message-ID: <1151395244.593128.45310@b68g2000cwa.googlegroups.com>

Path: arc1-ca.pugleaf.net!g2news2.google.com!postnews.google.com!b68g2000cwa.googlegroups.com!not-for-mail

References: <1151362769.505895.44500@u72g2000cwu.googlegroups.com>

Show Full Headers

Complete Article Headers

X-Google-Thread: f4886,ee2dbdc02a13ba00
X-Google-Thread: 104764,ee2dbdc02a13ba00
X-Google-Thread: f6a65,ee2dbdc02a13ba00
X-Google-Thread: 112ae1,ee2dbdc02a13ba00
X-Google-Thread: f9b67,ee2dbdc02a13ba00
X-Google-Attributes: gidf4886,gid104764,gidf6a65,gid112ae1,gidf9b67,public
X-Google-Language: ENGLISH,ASCII-7-bit
Path: arc1-ca.pugleaf.net!g2news2.google.com!postnews.google.com!b68g2000cwa.googlegroups.com!not-for-mail
From: biovirus04@gmail.com
Newsgroups: sci.chem,sci.bio.microbiology,bionet.microbiology,alc.alc.c2h5oh,sci.engr.chem
Subject: Re: Do any bad-smelling compounds result from anoxic bacterial decomposition of ethanol?
Date: 27 Jun 2006 01:00:44 -0700
Organization: http://groups.google.com
Lines: 25
Message-ID: <1151395244.593128.45310@b68g2000cwa.googlegroups.com>
References: <1151362769.505895.44500@u72g2000cwu.googlegroups.com>
NNTP-Posting-Host: 67.168.166.180
Mime-Version: 1.0
Content-Type: text/plain; charset="iso-8859-1"
X-Trace: posting.google.com 1151395249 1738 127.0.0.1 (27 Jun 2006 08:00:49 GMT)
X-Complaints-To: groups-abuse@google.com
NNTP-Posting-Date: Tue, 27 Jun 2006 08:00:49 +0000 (UTC)
In-Reply-To: <1151362769.505895.44500@u72g2000cwu.googlegroups.com>
User-Agent: G2/0.2
X-HTTP-UserAgent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; SV1; .NET CLR 1.1.4322),gzip(gfe),gzip(gfe)
Complaints-To: groups-abuse@google.com
Injection-Info: b68g2000cwa.googlegroups.com; posting-host=67.168.166.180;
   posting-account=RGlZ5wwAAAAlZcIXJoZGL-4ousWFzJMl

Reply to Parent Message