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http://repositoriodigital.ipn.mx/handle/123456789/10818
Título : | Application of photoacoustic spectroscopy to the optical study of pigments in corn pericarp: spectral separation of optical absorption centers |
Palabras clave : | Photoacoustic Spectroscopy |
Fecha de publicación : | 16-ene-2013 |
Editorial : | High Temperatures-High Preassures |
Descripción : | The optical absorption centers in corn pericarp biopolymers have been studied by photoacoustic spectroscopy and the phase-resolved technique. The results show that the optical absorption spectra of these samples are formed by the superposition of two absorption bands, one of this corresponding to the cellulose in the epidermis and the other to o-gluciside pigments of flavonoid type wich are bound to the cellulose sugars. A spatial separation was obtained of the materials responsible for these absorption bands as a functions of the Ca(OH)2 concentration used in the alkaline cooking process which is the result of hemicellulose dissolution in these biopolymers. Research article of journal indexed in ISI database. Instituto Politecnico Nacional |
URI : | http://www.repositoriodigital.ipn.mx/handle/123456789/10818 |
Otros identificadores : | 0018-1544 http://hdl.handle.net/123456789/325 |
Aparece en las colecciones: | Doctorado |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
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2000 HT-HP v32 p379 pericarp.pdf | 662.58 kB | Adobe PDF | Visualizar/Abrir |
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