@article{Vanoli_Spinelli_Torricelli_Ibrahim_Parisi_Lo Scalzo_Rizzolo_2020, title={Anthocyanin and carotenoid contents assessed by time-resolved reflectance spectroscopy in potato tubers (Solanum tuberosum L.) with different flesh colors }, volume={34}, url={https://oaj.fupress.net/index.php/ahs/article/view/7666}, DOI={10.13128/ahsc-7666}, abstractNote={<p><strong>This work aimed at studying the relationships between the absorption spectra acquired by time-resolved reflectance spectroscopy (TRS) and the carotenoid (CAR) and/or the anthocyanin (ANT) contents in 9 potato genotypes with different flesh color (white, yellow, red, purple). Fifty whole and intact tubers/genotype were non-destructively measured by TRS in the 540-980 nm range; white- and yellow-fleshed were ranked according to increasing <em>µ</em><sub>a</sub>540, the red ones according to <em>µ</em><sub>a</sub>670 and the purple ones according to <em>µ</em><sub>a</sub>780. Then, 5 tubers/genotype, corresponding to the highest, the lowest and 3 intermediate values of each </strong><strong><em>μ</em></strong><strong><sub>a</sub></strong><strong> range, were analyzed for flesh color and CAR and ANT contents. In white- and yellow-fleshed genotypes, <em>µ</em><sub>a</sub>540 ranged from 0.078 to 0.207 cm<sup>-1</sup>, showing the highest value in ‘Melrose’ and in ‘ISCI 133/12-1’ and the lowest ones in ‘Romantica’ and in ‘CN 07.16.3’. In red-fleshed tubers, <em>µ</em><sub>a</sub>670 ranged from 0.049 to 0.146 with no significant differences between genotypes; in purple genotypes, <em>µ</em><sub>a</sub>780 ranged from 0.147 to 0.473, showing the highest values in ‘Bleuet’. CAR content ranged between 0.071 to 5.937 mg kg</strong><strong><sup>-</sup></strong><strong><sup>1</sup></strong><strong> FW, displaying the highest amounts in the deep yellow genotypes ‘Melrose’ and ‘ISCI 133/12-1’ and the lowest ones in the white ‘CN 07.16.3’ and in the dark purple ‘Bleuet’ tubers. ANT content ranged from 31.63 to 798.44 mg kg</strong><strong><sup>-</sup></strong><strong><sup>1 </sup></strong><strong>FW in red-purple genotypes, having the highest values in ‘Bleuet’. By using TRS spectra and PLS analysis, it was possible to predict CAR (R<sup>2</sup><sub>CV</sub>=0.79, RMSECV=0.89) and ANT (R<sup>2</sup><sub>CV</sub> =0.81, RMSECV=95.53) contents and flesh color (<em>h°</em>) in yellow-fleshed genotypes (R<sup>2</sup><sub>CV</sub> =0.93, RMSECV=0.67) and purple genotypes (R<sup>2</sup><sub>CV</sub> =0.82, RMSECV=1.63).</strong></p>}, number={1S}, journal={Advances in Horticultural Science}, author={Vanoli, Maristella and Spinelli, Lorenzo and Torricelli, Alessandro and Ibrahim, Ayman and Parisi, Bruno and Lo Scalzo, Roberto and Rizzolo, Anna}, year={2020}, month={Jun.}, pages={71–80} }