Journal
JOURNAL OF NEAR INFRARED SPECTROSCOPY
Volume 17, Issue 3, Pages 159-164Publisher
SAGE PUBLICATIONS LTD
DOI: 10.1255/jnirs.837
Keywords
near infrared spectroscopy; geographical indication tea; recognition; principal components; Fisher's discriminant classification
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Funding
- science and technology plan of Zhejiang Province of China [2008C12070]
- National Natural Science Foundation of Zhejiang Province of China [Y305096]
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This study attempted to identify authentic geographical indication tea using near infrared (NIR) spectroscopy with a combination of Fisher's discriminant classification and principal components analysis (PCA). This rapid and accurate NIR-based approach has shown an accuracy rate for identifying the geographical indication tea equal to 96.7% in a training set, 95.3% using cross-validation and 96.7% in a test set. The overall results suggest that the combination of NIR spectroscopy with Fisher's discriminant classification with PCA could be successfully applied as a rapid and reliable way to identify geographical indication tea.
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