naa a22 4500 510724817 CHVBK 20180411082931.0 cr unu---uuuuu 180411e20130901xx s 000 0 eng 10.1007/s11947-012-0824-7 doi (NATIONALLICENCE)springer-10.1007/s11947-012-0824-7 Apples Nutraceutic Properties Evaluation Through a Visible and Near-Infrared Portable System [Elektronische Daten] [R. Beghi, A. Spinardi, L. Bodria, I. Mignani, R. Guidetti] Non-destructive and rapid tools are required for predicting the optimum harvest window and for monitoring fruit quality during postharvest period. This study tested a portable, experimental visible/near-infrared (vis/NIR) spectrophotometer, more versatile and handy than traditional vis/NIR instruments, to measure phytonutrients active in human health and important in fruit storability. Parameters determining sensorial and quality properties of the fruit were also analyzed. The vis/NIR measurement was carried out in field using apples of "Golden Delicious” and "Stark Red Delicious” on tree. Calibration models were developed using PLS regression based on second derivative spectra. For "Golden Delicious” apple, the cross-validation R 2 for soluble solids content (SSC), chlorophyll, titratable acidity (TA), flesh firmness, total phenols, carotenoids, and ascorbic acid were 0.72, 0.86, 0.52, 0.44, 0.09, 0.77, and 0.50, respectively. The corresponding RMSECV were 0.78 °Brix, 0.50nmol/cm2, 0.59g/L, 6.08N, 0.10mg/g, 0.08nmol/cm2, and 0.83mg/100g, respectively. For "Stark Red Delicious” similar calibration statistics were found for SSC, TA, flesh firmness, chlorophyll, and ascorbic acid content. A better calibration performance was achieved for total phenols, while for carotenoids it was less accurate. Cross-validation R 2 for "Stark Red Delicious” total anthocyanins, total flavonoids, and non-anthocyanic flavonoids were 0.67, 0.86, and 0.77, respectively. The corresponding RMSECV were 0.12, 0.14, and 0.15mg/g, respectively. It was concluded that the portable vis/NIR instrument performed similarly to bench top or portable vis/NIR instruments reported in the literature. Springer Science+Business Media, LLC, 2012 Apple nationallicence Visible near-infrared nationallicence Nutraceutical compounds nationallicence Chemometrics nationallicence Quality evaluation nationallicence Beghi R. Department of Agricultural Engineering, Università degli Studi di Milano, Via Celoria 2, 20133, Milan, Italy aut Spinardi A. Department of Plant Production, Università degli Studi di Milano, Via Celoria 2, 20133, Milan, Italy aut Bodria L. Department of Agricultural Engineering, Università degli Studi di Milano, Via Celoria 2, 20133, Milan, Italy aut Mignani I. Department of Plant Production, Università degli Studi di Milano, Via Celoria 2, 20133, Milan, Italy aut Guidetti R. Department of Agricultural Engineering, Università degli Studi di Milano, Via Celoria 2, 20133, Milan, Italy aut Food and Bioprocess Technology Springer US; http://www.springer-ny.com 6/9(2013-09-01), 2547-2554 1935-5130 6:9<2547 2013 6 11947 https://doi.org/10.1007/s11947-012-0824-7 text/html Onlinezugriff via DOI 1 brief-communication jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11947-012-0824-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Beghi R. Department of Agricultural Engineering, Università degli Studi di Milano, Via Celoria 2, 20133, Milan, Italy aut NATIONALLICENCE 700 1- Spinardi A. Department of Plant Production, Università degli Studi di Milano, Via Celoria 2, 20133, Milan, Italy aut NATIONALLICENCE 700 1- Bodria L. Department of Agricultural Engineering, Università degli Studi di Milano, Via Celoria 2, 20133, Milan, Italy aut NATIONALLICENCE 700 1- Mignani I. Department of Plant Production, Università degli Studi di Milano, Via Celoria 2, 20133, Milan, Italy aut NATIONALLICENCE 700 1- Guidetti R. Department of Agricultural Engineering, Università degli Studi di Milano, Via Celoria 2, 20133, Milan, Italy aut NATIONALLICENCE 773 0- Food and Bioprocess Technology Springer US; http://www.springer-ny.com 6/9(2013-09-01), 2547-2554 1935-5130 6:9<2547 2013 6 11947 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer