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Title

Analytical pyrolysis evidences the presence of granaticins in the violet stains of a Roman tomb

AuthorsDíaz-Herraiz, Marta; Laiz Trobajo, L. ; Jurado, Valme ; Miller, A. Z. ; González-Pérez, José Antonio ; Santos, Juan Luis; Alonso, Esteban; Sáiz-Jiménez, Cesáreo
KeywordsGranaticins
High performance liquid chromatography
Mortar
Pyrolysis
Roman tomb
Streptomyces
Issue Date1-Jan-2015
PublisherElsevier
CitationJournal of Analytical and Applied Pyrolysis (117) 357-362 (2016)
AbstractThe walls of the Circular Mausoleum tomb (Roman Necropolis of Carmona, Spain) exhibit an important number of violet stains of unknown origin. Analytical pyrolysis detected in the tomb walls granaticin A, a violet pigment with an isobenzochromanequinone structure, as well as in the extracts of two bacterial strains isolated from the walls. The bacterium was tentatively identified as Streptomyces sp. High performance liquid chromatography confirmed that this Streptomyces synthesized as major pigments dihydrogranaticin A, granaticin A and granaticin B.
Description6 páginas.-- 5 figuras.-- 14 referencias
Publisher version (URL)http://dx.doi.org/10.1016/j.jaap.2015.10.018
URIhttp://hdl.handle.net/10261/127297
DOI10.1016/j.jaap.2015.10.018
ISSN0165-2370
Appears in Collections:(IRNAS) Artículos
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