Fecha/hora: 16/06/2024 09:51:08

Biblioteca(s): 	INIA La Estanzuela.	
Fecha corriente: 	21/02/2014	
Fecha de la última actualización: 	28/10/2019	
Autoria: 	FASSIO, A.; COZZOLINO, D.	
Afiliación: 	ALBERTO SANTIAGO FASSIO ARAUJO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; DANIEL COZZOLINO GÓMEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay.	
Título: 	Non-destructive prediction of chemical composition in sunflower seeds by near infrared spectroscopy.	
Año de publicación: 	2004	
Fuente/Imprenta: 	Industrial Crops and Products, 2004, 20 (3): 321-329.	
DOI: 	10.1016/j.indcrop.2003.11.004	
Idioma: 	Inglés	
Notas: 	Article history: Received 25 April 2003 / Accepted 14 November 2003.	
Contenido: 	Abstract:
Near infrared reflectance spectroscopy (NIRS) was explored as a technique to predict moisture (M), oil and crude protein
(CP) content on intact sunflower seeds (Helianthus annuus L.). Three hundred samples were scanned intact in a monochromator
instrument NIRS 6500 (NIRSystems, Silver Spring, MD, USA). Calibration equations were developed using modified partial
least square regression (MPLS) with internal cross validation. Samples were split in two sets, one set used as calibration
(n = 250) where the remaining samples (n = 50) were used as validation set. Two mathematical treatments (first and second
derivative), none (log 1/R) and standard normal variate and detrend (SNVD) as scatter corrections were explored. The coefficient
of determination in calibration (R2
cal) and the standard error in cross validation (SECV) were 0.95 (SECV: 3.3) for M; 0.96
(SECV: 13.1) for CP and 0.90 (SECV: 22.3) for oil in g kg?1 on a dry weight basis (second derivative, 400?2500 nm). Prediction
models accounted for less than 65, 70 and 72% of the total variation for oil, M and CP, respectively. However, it was concluded
that NIRS is a suitable technique to be used as a tool for rapid pre-screening of quality characteristics on breeding programs.	
Palabras-Clave: 	CRUDE PROTEIN; MOISTURE; NEAR INFRARED REFLECTANCE SPECTROSCOPY; OIL; SEEDS.	
Thesagro: 	GIRASOL; HELIANTHUS ANNUUS L; NIRS; PROTEINA CRUDA; SEMILLAS.	
Categoría del tema: 	--	
Registro original: 	INIA La Estanzuela (LE)