NIR measurement of specific gravity of potato

Near infrared (NIR) spectroscopy was investigated as a method for nondestructive measurement of specific gravity of potato. A total of 250 potatoes of three cultivars, Irish-Cobbler, May-Queen and Kita-akari, were used as experiment samples. The NIR spectra (700-1100nm) of potato samples were acquir...

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Bibliographic Details
Published in:Food Science and Technology Research 2005, Vol.11(1), pp.26-31
Main Authors: Chen, J.Y, Zhang, H, Miao, Y, Matsunaga, R
Format: Article
Language:English
Subjects:
least squares
near infrared (NIR) spectroscopy
near-infrared reflectance spectroscopy
partial least square regression (PLS)
potato
potatoes
Solanum tuberosum
specific gravity
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Summary:Near infrared (NIR) spectroscopy was investigated as a method for nondestructive measurement of specific gravity of potato. A total of 250 potatoes of three cultivars, Irish-Cobbler, May-Queen and Kita-akari, were used as experiment samples. The NIR spectra (700-1100nm) of potato samples were acquired by the interactance method and partial least square (PLS) regression analysis was used to develop a predictive model for specific gravity. As a result, the model gave relatively good predictions of the specific gravity, with a correlation coefficient of 0.94 and standard error of prediction of 0.0044g/cm3. The results show the potential of the NIR technique as a means for nondestructive measurement of specific gravity of potato with reasonable accuracy.
ISSN:1344-6606
1881-3984
DOI:10.3136/fstr.11.26