Abstract

Journal of Near Infrared Spectroscopy
Volume 12 Issue 5, Pages 311–314 (2004)
doi: 10.1255/jnirs.439

Non-destructive determination of carbohydrate content in potatoes using near infrared spectroscopy

Jie Yu Chen,^a Yelian Miao,^b Han Zhanga and Ryuji Matsunaga^a
aFaculty of Bioresource Sciences, Akita Prefectural University, Akita, 010-0195, Japan
^bCollege of Life Science and Pharmacy, Nanjing University of Technology, Nanjing, China

The performance of near infrared spectroscopy as a simple technique for the non- destructive determination of carbohydrate content in potatoes was examined. An interactance method was adopted to measure near infrared spectra (700–1100 nm). A good calibration model with reasonable accuracy (correlation coefficient of 0.93 and standard error of prediction of 0.98%) was developed using partial least square (PLS) regression. The PLS calibration model utilised effectively two characteristic absorption bands of 990 nm and 916 nm, assigned to potato starch. The plots of the regression coefficients were thought to be useful for understanding the calibration model structure.

Keywords: near infrared spectroscopy, carbohydrate content, potatoes, difference spectra, partial least square regression (PLS)

---

Full-text article (248 kB) (subscribers only)

Buy article on-line for £20 (get immediate access)

Alerting Service

 RSS Feed

Permalink: http://dx.doi.org/10.1255/jnirs.439
QR Code (what is this?):

---