In article <Pine.SCO.3.96.971006080347.2126A-100000 at delta1.deltanet.com>,
John Chalmers <non12 at deltanet.com> writes:
> 70% ETOH is usual. BTW, ascospores of Neurospora
>crassa can survive this treatment occasionally.
The mold spores (conidiospores and ascospores) I've tested and _Bacillus_
spores are also not killed by IPA or ethanol.
Davin
--------------------------------------------------------------------------
------------------------------
Davin C. Enigl,
Microbiologist, MEAS-Master of Environmental Arts and Sciences
Co-author (with Kent M. Sorrells), Water Activity and Self-Preserving Formulas,
In: _Preservative-Free and Self-Preserving Cosmetics and Drugs_, Kabara
and Orth, editors. Copyright 1997,
Marcel-Dekker, ISBN 0-8247-9366-8, Telephone: 1-800-228-1160
Microbiology Services:
Water System Design and Validation
Preservative Formulation and Stability Testing
FDA Validation Protocols
Hazard Analysis and Critical Control Points (HACCP)
Current Good Manufacturing Practices (cGMP) Audits
Facility Start-Ups
Microbiology Training
Web Site: http://members.aol.com/enigl/
October 9, 1997
7:49 pm PACIFIC
