Characterization of colouring compounds in annatto (Bixa Orellana L.) Used in historic textiles by means of uv-vis spectrophotometry and ft-ir spectroscopy
Valencian historic textiles were commonly woven with coloured silks and natural dyes in the 18th century. The optimisation of analytical methods to extract and classify the dyes used is required to understand not only their degradation process, but also the state of conservation of these textiles. T...
| Autores: | , , , , , |
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| Formato: | artículo |
| Fecha de publicación: | 2008 |
| País: | España |
| Recursos: | Universitat Politècnica de València (UPV) |
| Repositorio: | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| Idioma: | inglés |
| OAI Identifier: | oai:riunet.upv.es:10251/31763 |
| Acesso em linha: | https://riunet.upv.es/handle/10251/31763 |
| Access Level: | acceso abierto |
| Palavra-chave: | Natural dyes Carotenoids Annatto Bixa Orellana L Silk FTIR spectroscopy UV-Vis spectrophotometry Tintes naturales Achiote Bixa Orellana Espectrometría FTIR Espectrofotometría UV-Vis Seda Carotenoides CONSERVACION Y RESTAURACION DE BIENES CULTURALES (UPV) |
| Resumo: | Valencian historic textiles were commonly woven with coloured silks and natural dyes in the 18th century. The optimisation of analytical methods to extract and classify the dyes used is required to understand not only their degradation process, but also the state of conservation of these textiles. This paper shows the results obtained in the optimisation of the preparation process of the two main colouring components in annatto (Bixa Orellana L.), namely, bixin and norbixin, prior to analysis by means of UV-Vis Spectrophotometry and FTIR spectroscopy. The results of the analysis were also satisfactory |
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