Evaluación de la respuesta de la propiedad biocida del aceite esencial de pelargonium graveolens L'Hér. Aplicado a soporte de papel de carácter patrimonial y de las posibles alteraciones de la celulosa en el proceso

Abstract

In the present work the response of the microbicide property of the essential oil (AO) extracted from the species Pelargonium graveolens L'Hér (Geraniaceae) applied on paper supports made at the end of the 18th century was evaluated and the possible alterations of cellulose in the process. In the application of the EO of P. graveolens to 1% in 75% EtOH on paper supports of a manual nature, it is observed that in parameters such as acidity and hue, there was no significant alteration. However, the increase in reducing sugars of 26.59% is evident and in terms of its biocidal activity, the essential oil shows microbicidal activity against the yeast Rhodotorula mucilaginosa and the genera of fungi Aspergillus sp., Penicillium sp. And Stachybotrys sp. found in a microbial consortium on paper supports type manual, but the bacterium B. subtilis persists in the paper supports, even after the application of the EO under the conditions of study.