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http://repositoriodigital.ipn.mx/handle/123456789/11649Registro completo de metadatos
| Campo DC | Valor | Lengua/Idioma |
|---|---|---|
| dc.creator | Luterotti, S. | - |
| dc.creator | Bicanic, D. | - |
| dc.creator | Kljak, K. | - |
| dc.creator | Grbesa, D. | - |
| dc.creator | San Martin-Martínez, E. | - |
| dc.creator | Spruijt, R. | - |
| dc.date | 2012-03-29T18:10:50Z | - |
| dc.date | 2012-03-29T18:10:50Z | - |
| dc.date | 2011-07-17 | - |
| dc.date.accessioned | 2013-01-16T16:32:21Z | - |
| dc.date.available | 2013-01-16T16:32:21Z | - |
| dc.date.issued | 2013-01-16 | - |
| dc.identifier | 1557-1858 | - |
| dc.identifier | http://hdl.handle.net/123456789/1187 | - |
| dc.identifier.uri | http://www.repositoriodigital.ipn.mx/handle/123456789/11649 | - |
| dc.description | This study describes the application of the laser photoacoustic spectroscopy (PAS) for quantification of total carotenoids (TC) in corn flours and sweetpotato flours. Overall, thirty-three different corn flours and nine sweetpotato flours were investigated. All PAS measurements were performed at room temperature using 488-nm argon laser radiation for excitation and mechanical modulation of 9 and 30 Hz. The measurements were repeated within a run and within several days or months. The UV–Vis spectrophotometry was used as the reference method. The concentration range that allows for the reliable analysis of TC spans a region from 1 to 40 mg kg−1 for corn flours and from 9 to 40 mg kg−1 for sweetpotato flours. In the case of sweetpotato flours, the quantification may extend even to 240 mg kg−1 TC. The estimated detection limit values for TC in corn and sweetpotato flours were 0.1 and 0.3 mg kg−1, respectively. The computed repeatability (n=3–12) and intermediate precision (n=6–28) RSD values at 9 and 30 Hz are comparable: 0.1–17.1% and 5.3–14.7% for corn flours as compared with 1.4–9.1% and 4.2–23.0% for sweetpotato flours. Our results show that PAS can be successfully used as a new analytical tool to simply and rapidly screen the flours for their nutritional potential based on the total carotenoid concentration. | - |
| dc.description | ORIGINAL ARTICLE published in Journals of Science Citation Index Expanded or JCR | - |
| dc.description | Centro de Investigacion en Ciencia Aplicada y Tecnologia Avanzada, IPN | - |
| dc.language | en | - |
| dc.publisher | Food Biophysics (2011) 6:12–19 | - |
| dc.subject | Photoacoustic spectroscopy | - |
| dc.subject | Total carotenoids assay | - |
| dc.subject | Corn flours | - |
| dc.subject | Sweetpotato flours | - |
| dc.title | Assaying Total Carotenoids in Flours of Corn and Sweetpotato by Laser Photoacoustic Spectroscopy | - |
| dc.type | Article | - |
| Aparece en las colecciones: | Doctorado | |
Ficheros en este ítem:
| Fichero | Descripción | Tamaño | Formato | |
|---|---|---|---|---|
| Assaying Total Carotenoids in Flours of Corn.pdf | 54.1 kB | Adobe PDF | Visualizar/Abrir |
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