Document Type : Research Paper

Authors

1 M.Sc., Conservation of Historical and Cultural Properties, Faculty of conservation, Art University of Isfahan, Tabriz, Iran

2 Assistant Professor, Faculty of conservation, Art University of Isfahan

3 Research Faculty Member, Researches of Entomology and Phytopathology, East Azarbaijan Research Center for Agriculture and ‎Natural Resources

Abstract

Paper works are more attacked by biological agents such as fungi, bacteria and insects due to its organic nature. In ‎archives, most of the biological destruction of paper is related to fungi. The importance of paper works ‎conservation has led to applying different methods to fungus removal. The chemical disinfection is of of the most ‎common disinfection methods. In this research, the application of Thiophanate methyl in paper destructive fungi ‎has been studied. Laboratory studies to evaluate the effects of Thiophanate methyl on paper and fungus include ‎accelerated ageing, the evaluation of effectiveness of antifungal Thiophanate methyl on fungi such as ‎Aspergillusniger, Aspergillusflavus and Penicilliurnsp and determination of antifungal stability after accelerated ‎ageing. Examination shows that Thiophanate methyl has successfully prevented spread of fungus in all density of ‎‏10‏‎, ‎‏50‏‎, ‎‏100,200‏‎ and ‎‏500‏‎ ppm. Aspergillus flavus fungus had a slight growth at ‎‏10‏‎ ppm, but no growth were ‎observed in other density. Aspergillusniger fungus had no growth capacity in density more than ‎‏100‏‎ ppm. ‎According to the results, treated papers are still able to control fungus growth after being in accelerated ageing ‎condition. In general, the results obtained by fungus growth halo and non-growth halo indicate that all fungi are ‎controllable in density of ‎‏200‏‎ ppm.‎

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Main Subjects

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