Dyes from the Ashes: Discovering and Characterizing Natural Dyes from Mineralized Textiles

Molecules

Roberta Curini¹  Armandodoriano Bianco¹  Ilaria Serafini¹  Camilla Montesano¹  Flaminia Vincenti¹  Alessandro Ciccola¹  Francesca Coletti²  Marco Galli²  Claudia Fasolato³  Francesca Ripanti⁴  Paolo Postorino⁴ 

[1] Chemistry Department, “Sapienza” “Sapienza” University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy;Department Ancient Sciences, “Sapienza” University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy;Department Physics and Geology, University of Perugia, Via Alessandro Pascoli, 06123 Perugia PG, Italy;Department Physics, “Sapienza” University of Rome, Piazzale Aldo Moro 5, 00174 Rome, Italy;

关键词: pompeii;    tyrian purple;    shellfish purple;    sers;    hplc-hrms;    orbitrap;    cultural heritage;    mineralized textiles;   

DOI  :  10.3390/molecules25061417

来源: DOAJ

【 摘 要 】

Vesuvius eruption that destroyed Pompeii in AD 79 represents one of the most important events in history. The cataclysm left behind an abundance of archeological evidence representing a fundamental source of the knowledge we have about ancient Roman material culture and technology. A great number of textiles have been preserved, rarely maintaining traces of their original color, since they are mainly in the mineralized and carbonized state. However, one outstanding textile sample displays a brilliant purple color and traces of gold strips. Since the purple was one of the most exclusive dyes in antiquity, its presence in an important commercial site like Pompeii induces us to deepen the knowledge of such artifacts and provide further information on their history. For this reason, the characterization of the purple color was the main scope of this research, and to deepen the knowledge of such artifacts, the SERS (Surface Enhanced Raman Scattering) in solution approach was applied. Then, these data were enriched by HPLC-HRMS analyses, which confirmed SERS-based hypotheses and also allowed to hypothesize the species of the origin mollusk. In this context, a step-by-step integrated approach resulted fundamental to maximize the information content and to provide new data on textile manufacturing and trade in antiquity.

【 授权许可】

Unknown