Search results for "Cultural asset"
showing 6 items of 6 documents
PLANT EXTRACTS AS GREEN POTENTIAL STRATEGIES TO CONTROL THE BIODETERIORATION OF CULTURAL HERITAGE
2016
The biodeterioration of historic-artistic manufacts is related to several biological systems, including fungi and bacteria, whose metabolic activities and vegetative development have a direct consequence on the conservation of cultural assets. Generally, different chemical compounds are utilized as biocides in order to control biodeteriogens growth, but recently the attention has been focused on potential risks of their use towards human health (operators, visitors) and the environment. In order to develop alternative methods, various natural products have been tested, particularly to control the colonization by fungi and bacteria. In this study, antimicrobial activity of three different pl…
Essential Oils as Natural Biocides in Conservation of Cultural Heritage
2020
Essential oils (EOs) have been known for a long time, and they are used in several fields such as medicine and aromatherapy, as well as in the food and pharmaceutical industries. In the last decade, EOs have also been applied to contrast the biodeterioration of cultural heritage, representing a powerful resource in green conservation strategies. In this study, an integrated approach based on microscopic observation, in vitro culture, and molecular investigation was preliminarily employed to identify biological systems colonizing wooden artworks. In order to contrast the biodeterioration processes induced by fungal colonization (Aspergillus flavus) or insect infestation (Anobium punctatum), …
Novel protese from marine organisms with potential interest in restoration procedures
2012
In the last decades molecular biology allowed the development of innovative protocols in the field of conservation/restoration of cultural assets. In this work we presents novel hydrolyses isolated from marine invertebrate organisms, whose protease activity was previously tested in laboratory by zymography on polyacrilamide gel (in presence of 0.1 of gelatin) Very interesting these enzymes are activated/work in a range of temperatures between 4 ° C and 37 ° C. In this study two sets of proteases were applied, to bio-clean works of art surfaces, at the environments temperature (19° to 25.5° C). Before remove, the water-soluble components of the layers have been analyzed by high-pressure size…
Cultura e Amministrazione nella transizione digitale
2021
The research concerns cultural heritage and, in its overall dimension, the evolution of culture, considered in the light of the very significant transformations in the contemporary global world, which in an unprecedented and expansive way affect its conceptual framework, also in terms of the relationship with the person, considered in the role of user and co-creator of the cultural value; and they also invest public duty which is entrusted with tasks of protection and promotion of both the development of the person and of culture. The analysis points out the overcoming of a markedly materialistic vision, the shift of attention from the conservative dynamics to the management profiles of cul…
Innovative and Integrated Strategies: Case Studies
2017
In this chapter, case studies related to biodeterioration, bioaerosol, biocide and biocleaning are reported. The aim is highlighting the role of biology and biotechnology tools for the preventive conservation of organic and inorganic artifacts, understanding how traditional as well as innovative methods can help the conservationists to develop integrated strategies considering works of art/environment/ humans as a dynamic system. Particularly, based on the experience acquired during the researches of Laboratory of Biology and Biotechnology for Cultural Heritage (LaBBCH), the authors suggest several approaches to reveal and identify biological systems able to induce biodeterioration of cultu…
Removal of old protein layers from surfaces of works of art by new enzymes
2012
The aim of the present project is to set up bio-cleaning protocols in order to easily remove altered protein layers (e.g. animal glues) by enzymatic proteins (proteases). Protein molecules were isolated from marine invertebrate organisms, characterized by size exclusion highpressure liquid chromatography (Waters: SEC-HPLC, BioSuite 250 to 10㎛ SEC 7.5 x 300 mm) and their gelatinase activity analyzed by zymography on polyacrilamide gel. The remarkably proteolytic activity and the reaction temperature range of these enzymes, 4° to 37℃, made it possible to hypothesize their use in bioremediation projects. Tests were performed on protein coating found on some polychrome wooden artifacts exposed …