The determination of threshold concentrations of biocides for museum exhibits by a photometric method

The efficiency and threshold concentration of biocides has been examined by photometric analysis of the growth of micro-organisms cultured in the laboratory. Both fungi and algae responsible for attacking museum exhibits inside and in the open air were used. The organisms were cultured on a nutrient...

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Bibliographic Details
Published in:International biodeterioration & biodegradation 1992, Vol.30 (4), p.303-312
Main Authors: Mamonova, I.V., Kurochkin, V.E., Paramonov, G.A., Petrjakov, A.O., Panina, L.K.
Format: Article
Language:English
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Summary:The efficiency and threshold concentration of biocides has been examined by photometric analysis of the growth of micro-organisms cultured in the laboratory. Both fungi and algae responsible for attacking museum exhibits inside and in the open air were used. The organisms were cultured on a nutrient media containing serial dilutions of biocide, and growth was assessed by measuring optical density with a multichannel photometer. The efficacy of the biocides was measured by means of an inhibition parameter α which is the degree of deviation of the growth curve determined from that of the control. Both AB catamin, which is already used in museums, and catapol were examined. The data suggest that the efficiency of catapol is very close to that calculated theoretically. The advantage of the method over traditional ones has been demonstrated.
ISSN:0964-8305
1879-0208
DOI:10.1016/0964-8305(92)90035-M