NDLI: From Plant Extracts to Historical Textiles: Characterization of Dyestuffs by GC

Content Provider	Springer Nature Link
Author	Degani, Laura Riedo, Chiara Gulmini, Monica Chiantore, Oscar
Copyright Year	2014
Abstract	A gas chromatographic–mass spectrometric procedure for the analysis of dyes from plant extracts was optimized and applied for the detection of components in extracts from 12 dyeing plants native from all over the world. The main marker molecules in each of the dyestuffs, as well as accessory compounds, were successfully separated and identified by means of their electron impact mass spectra, thus demonstrating that a single GC–MS procedure can be conveniently applied to the detection of natural dyes such as flavonoids, neoflavonoids, anthraquinones and tannins. Other constituents of plant extracts, such as organic acids, oils and sugars, that hydrolyse during the extraction process, were also detected and recognized in the same chromatographic run. The GC–MS method was tested on woollen references dyed according to traditional recipes, and on historical wool samples taken from a tapestry of the sixteenth century, and the main dyestuffs used for colouring could be traced even with the low amounts usually available with the archaeometric samples. Besides some limitations, that are addressed, the results show that the GC analysis is a useful tool for quick assessment and control of natural extracts and the application of the technique for the characterization of dyes in historical textiles, in addition or in place of the more widely used procedures that employ liquid chromatography, is encouraged.
Starting Page	1683
Ending Page	1696
Page Count	14
File Format	PDF
ISSN	00095893
Journal	Chromatographia
Volume Number	77
Issue Number	23-24
e-ISSN	16121112
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2014-09-26
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Gas chromatography Mass spectrometry detection Natural dyes Plant extracts Flavonoids Anthraquinones Tannins Archaeometric applications Chromatography Proteomics Pharmacy Laboratory Medicine
Content Type	Text
Resource Type	Article
Subject	Organic Chemistry Analytical Chemistry Biochemistry Clinical Biochemistry

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