Rapid Analysis of Geographical Origins and Age of Torreya grandis Seeds by NIR Spectroscopy and Pattern Recognition Methods
Joint Authors
Yu, Xiao-Ping
Cai, Chen-Bo
Xu, Lu
Zhong, Wei
Yan, Si-Min
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-06-10
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
This paper develops a rapid method for discriminating the geographical origins and age of roasted Torreya grandis seeds by near infrared (NIR) spectroscopic analysis and pattern recognition.
337 samples were collected from three main producing areas and produced in the last two years.
The objective of geographical origins analysis is to discriminate the seeds from Fengqiao with a protected geographical indication (PGI) from those of another two provinces.
Age classification is aimed to detect the old seeds produced in the last year from the freshly produced ones.
Partial least squares discriminant analysis (PLSDA) was used to develop classification models, and the influence of data preprocessing methods on classification performance was also investigated.
Taking second-order derivatives of the raw spectra proves to be the most proper and effective preprocessing method, which can remove baselines and backgrounds and reduce model complexity.
With second derivative spectra, the sensitivity and specificity were 0.939 and 0.871 for age discrimination, respectively.
Perfect classification was obtained, and both sensitivity and specificity were 1 for discrimination of geographical origins.
American Psychological Association (APA)
Xu, Lu& Yan, Si-Min& Cai, Chen-Bo& Zhong, Wei& Yu, Xiao-Ping. 2013. Rapid Analysis of Geographical Origins and Age of Torreya grandis Seeds by NIR Spectroscopy and Pattern Recognition Methods. Journal of Spectroscopy،Vol. 2013, no. 2013, pp.1-9.
https://search.emarefa.net/detail/BIM-473896
Modern Language Association (MLA)
Xu, Lu…[et al.]. Rapid Analysis of Geographical Origins and Age of Torreya grandis Seeds by NIR Spectroscopy and Pattern Recognition Methods. Journal of Spectroscopy No. 2013 (2013), pp.1-9.
https://search.emarefa.net/detail/BIM-473896
American Medical Association (AMA)
Xu, Lu& Yan, Si-Min& Cai, Chen-Bo& Zhong, Wei& Yu, Xiao-Ping. Rapid Analysis of Geographical Origins and Age of Torreya grandis Seeds by NIR Spectroscopy and Pattern Recognition Methods. Journal of Spectroscopy. 2013. Vol. 2013, no. 2013, pp.1-9.
https://search.emarefa.net/detail/BIM-473896
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-473896