A NIR (Near - Infrared) – AOTF (Acousto Optically Tunable Filter) spectrophotometer has been used to analyze the main parameters that describe the quality of Cucurbita Pepo L. fruit. Regression models were developed by means Partial Least Square (PLS) chemometric approach to predict dry matter percentage, Hue angle and fi rmness. Signifi cant values of determination coeffi cient were obtained during calibration for all three parameters investigated (R2>0.90). Predictive ability was good and was tested on a cross-validation for dry matter percentage predicting model with a determination coeffi cient and a standard error respectively of 0.81 and 0.46%.
Spettroscopia NIR-AOTF: tecnica innovativa per determinare la sostanza secca e quindi l'epoca di raccolta dello zucchino
Mencarelli F
2012-01-01
Abstract
A NIR (Near - Infrared) – AOTF (Acousto Optically Tunable Filter) spectrophotometer has been used to analyze the main parameters that describe the quality of Cucurbita Pepo L. fruit. Regression models were developed by means Partial Least Square (PLS) chemometric approach to predict dry matter percentage, Hue angle and fi rmness. Signifi cant values of determination coeffi cient were obtained during calibration for all three parameters investigated (R2>0.90). Predictive ability was good and was tested on a cross-validation for dry matter percentage predicting model with a determination coeffi cient and a standard error respectively of 0.81 and 0.46%.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
