May
2003
Volume
80
Number
3
Pages
346
—
349
Authors
Sang Sook
Kim
,
1
,
4
Mee-Ra
Rhyu
,
1
Jae Min
Kim
,
2
and
Sang-Hyo
Lee
3
Affiliations
Rice Research Team, Korea Food Research Institute, Songnam-si, 463-746, Korea.
Optochem Co.Ltd., Seoul, 152-050 Korea.
Ricetech Co.Ltd., Songnam-si, 463-746, Korea.
Corresponding author: Phone: 82-31-780-9042. Fax:82-31-780-9059. E-mail: sskim@kfri.re.kr.
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RelatedArticle
Accepted February 28, 2003.
Abstract
ABSTRACT
The authentication of rice (Korean domestic rice vs. foreign rice) has been attempted using near-infrared spectroscopy (NIRS). Two sample sets (n1 = 280 and n2 = 200) were used to obtain calibration equations and the spectral regions used for this study were 500–600 nm, 700–900nm, and 980–2,498 nm. Modified partial least square (MPLS) regression was used to develop the prediction model. The standard error of cross validation (SECV) and the r2 were 0.165 and 0.91 respectively for 1st calibration set and 0.165 and 0.93 for 2nd calibration set respectively. The results of the independent validation (n3 = 80) showed that all of 80 samples were identified correctly. Even though authentication of rice was performed successfully using NIRS, the calibration statistics in this study showed that further effort is needed for implementation of NIRS for authentication of rice for industry purposes.
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© 2003 American Association of Cereal Chemists, Inc.