The attenuated total reflection (ATR) mode in Fourier transform infrared (FT-IR) spectroscopy has been used to detect the sugar transformations of carrots under various storage conditions. The composition of the sugars was assessed by principal component analysis (PCA) and principal component regression (PCR). The changes in the sucrose concentration of the trachea and phloem of the carrot after storage are evident.
Vol. 7, Iss. 11 Virtual Journal for Biomedical Optics
Naoto Nagai, Hideki Okada, Satoshi Watanabe, and Sayaka Shimojo, "Study of Sugar Transformations in Carrots During Storage Using Snow by Mid-Infrared Spectroscopy and Chemometrics," Appl. Spectrosc. 66, 1087-1090 (2012)