New Pyranoanthocyanins Synthesized from Roselle (Hibiscus sabdariffa L.) Anthocyanins
Six new pyranoanthocyanins were synthesized through the reaction between dephinidin-3-sambubioside and cyanidin-3-sam - bubioside, extracted from roselle calyxes, with 4-vinylphenol, acetone and 2-butanone. The reaction products were characterized by liquid chromatography coupled to mass spectrometr...
| Autores: | , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2016 |
| País: | México |
| Institución: | Universidad de las Américas Puebla |
| Repositorio: | Redalyc-UDLAP |
| OAI Identifier: | oai:redalyc.org:47545631003 |
| Acceso en línea: | https://www.redalyc.org/articulo.oa?id=47545631003 |
| Access Level: | acceso abierto |
| Palabra clave: | Química roselle acetone pinotins vinylphenol pyranoanthocyanins |
| Sumario: | Six new pyranoanthocyanins were synthesized through the reaction between dephinidin-3-sambubioside and cyanidin-3-sam - bubioside, extracted from roselle calyxes, with 4-vinylphenol, acetone and 2-butanone. The reaction products were characterized by liquid chromatography coupled to mass spectrometry (HPLC-TOF-MS), ul - traviolet-visible spectroscopy (UV/Vis) and high-performance liquid chromatography. Those new pigments belong to the families of pinotins and methylpyranoanthocyanins and show a hypsochromic shift, which results in a more orange colour compared to the red hue of the original anthocyanins. Therefore, these compounds could be used to obtain new colorants more stable against certain factors such as pH. |
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