Modification of EAPC-XYL by pseudomonas lipases bacteria to remove acrylic from the mural oil paintings

<strong>This paper focuses on the removal of acrylic polymer layers from the surfaces of mural paintings, as one of the serious problems faced by conservators. Nanostructured fluids containing water is a great solution for the immiscible or partially miscible polymer with water. The de-wetting...

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Autor principal:	Abeer F. ELHAGRASSY
Formato:	article
Lenguaje:	EN
Publicado:	Fayoum University 2019
Materias:	nano-emulsions acrylic polymer cleaning oil wall paintings conservation pseudomonasstutzeri Auxiliary sciences of history C Archaeology CC1-960
Acceso en línea:	https://doaj.org/article/eec587eb8b0a4736bb69cfb7b2e2cf12
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spelling	oai:doaj.org-article:eec587eb8b0a4736bb69cfb7b2e2cf122021-12-02T09:48:14ZModification of EAPC-XYL by pseudomonas lipases bacteria to remove acrylic from the mural oil paintings2356-87042536-995410.36816/shedet.006.10https://doaj.org/article/eec587eb8b0a4736bb69cfb7b2e2cf122019-12-01T00:00:00Zhttps://shedet.journals.ekb.eg/article_88293_98cd5385e02e5b232167b1b47fb7ffe1.pdfhttps://doaj.org/toc/2356-8704https://doaj.org/toc/2536-9954<strong>This paper focuses on the removal of acrylic polymer layers from the surfaces of mural paintings, as one of the serious problems faced by conservators. Nanostructured fluids containing water is a great solution for the immiscible or partially miscible polymer with water. The de-wetting of the polymer layer is usually an essential step to achieve efficient removal. EAPC-XYL system was often used for the removal of paraloid B72 but unfortunately, it has an effect on the noble patina of the pigments. The addition of Pseudomonas stutzeri as a source of lipase enzyme increases the efficiency of the EAPC-XYL in short time which helps in removing of the acrylic polymers without affecting the pigments.<br />The examination by SEM showed that the applying EAPC-XYL/ Pseudomonas stutzeri for only one hour has the effect of removing the polymer’s layers from the mural paintings without affecting the pigments. The FTIR analysis after application showed that the functional groups of the binding medium of the mural paintings is absence of paraloid B72.</strong>Abeer F. ELHAGRASSYFayoum Universityarticlenano-emulsionsacrylic polymercleaningoil wall paintingsconservationpseudomonasstutzeriAuxiliary sciences of historyCArchaeologyCC1-960ENShedet, Vol 6, Iss 6, Pp 189-202 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	nano-emulsions acrylic polymer cleaning oil wall paintings conservation pseudomonasstutzeri Auxiliary sciences of history C Archaeology CC1-960
spellingShingle	nano-emulsions acrylic polymer cleaning oil wall paintings conservation pseudomonasstutzeri Auxiliary sciences of history C Archaeology CC1-960 Abeer F. ELHAGRASSY Modification of EAPC-XYL by pseudomonas lipases bacteria to remove acrylic from the mural oil paintings
description	<strong>This paper focuses on the removal of acrylic polymer layers from the surfaces of mural paintings, as one of the serious problems faced by conservators. Nanostructured fluids containing water is a great solution for the immiscible or partially miscible polymer with water. The de-wetting of the polymer layer is usually an essential step to achieve efficient removal. EAPC-XYL system was often used for the removal of paraloid B72 but unfortunately, it has an effect on the noble patina of the pigments. The addition of Pseudomonas stutzeri as a source of lipase enzyme increases the efficiency of the EAPC-XYL in short time which helps in removing of the acrylic polymers without affecting the pigments.<br />The examination by SEM showed that the applying EAPC-XYL/ Pseudomonas stutzeri for only one hour has the effect of removing the polymer’s layers from the mural paintings without affecting the pigments. The FTIR analysis after application showed that the functional groups of the binding medium of the mural paintings is absence of paraloid B72.</strong>
format	article
author	Abeer F. ELHAGRASSY
author_facet	Abeer F. ELHAGRASSY
author_sort	Abeer F. ELHAGRASSY
title	Modification of EAPC-XYL by pseudomonas lipases bacteria to remove acrylic from the mural oil paintings
title_short	Modification of EAPC-XYL by pseudomonas lipases bacteria to remove acrylic from the mural oil paintings
title_full	Modification of EAPC-XYL by pseudomonas lipases bacteria to remove acrylic from the mural oil paintings
title_fullStr	Modification of EAPC-XYL by pseudomonas lipases bacteria to remove acrylic from the mural oil paintings
title_full_unstemmed	Modification of EAPC-XYL by pseudomonas lipases bacteria to remove acrylic from the mural oil paintings
title_sort	modification of eapc-xyl by pseudomonas lipases bacteria to remove acrylic from the mural oil paintings
publisher	Fayoum University
publishDate	2019
url	https://doaj.org/article/eec587eb8b0a4736bb69cfb7b2e2cf12
work_keys_str_mv	AT abeerfelhagrassy modificationofeapcxylbypseudomonaslipasesbacteriatoremoveacrylicfromthemuraloilpaintings
_version_	1718398040130191360

Modification of EAPC-XYL by pseudomonas lipases bacteria to remove acrylic from the mural oil paintings

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