Rapid Discrimination of the Geographical Origins of an Oolong Tea (Anxi-Tieguanyin) by Near-Infrared Spectroscopy and Partial Least Squares Discriminant Analysis
المؤلفون المشاركون
Yu, Xiao-Ping
Yun, Zhen-Yu
Fu, Xian-Shu
Liu, Jun-Ping
Xu, Lu
Cui, Hai-Feng
Ye, Zi-Hong
Yan, Si-Min
المصدر
Journal of Analytical Methods in Chemistry
العدد
المجلد 2014، العدد 2014 (31 ديسمبر/كانون الأول 2014)، ص ص. 1-6، 6ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2014-06-25
دولة النشر
مصر
عدد الصفحات
6
التخصصات الرئيسية
الملخص EN
This paper focuses on a rapid and nondestructive way to discriminate the geographical origin of Anxi-Tieguanyin tea by near-infrared (NIR) spectroscopy and chemometrics.
450 representative samples were collected from Anxi County, the original producing area of Tieguanyin tea, and another 120 Tieguanyin samples with similar appearance were collected from unprotected producing areas in China.
All these samples were measured by NIR.
The Stahel-Donoho estimates (SDE) outlyingness diagnosis was used to remove the outliers.
Partial least squares discriminant analysis (PLSDA) was performed to develop a classification model and predict the authenticity of unknown objects.
To improve the sensitivity and specificity of classification, the raw data was preprocessed to reduce unwanted spectral variations by standard normal variate (SNV) transformation, taking second-order derivatives (D2) spectra, and smoothing.
As the best model, the sensitivity and specificity reached 0.931 and 1.000 with SNV spectra.
Combination of NIR spectrometry and statistical model selection can provide an effective and rapid method to discriminate the geographical producing area of Anxi-Tieguanyin.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Yan, Si-Min& Liu, Jun-Ping& Xu, Lu& Fu, Xian-Shu& Cui, Hai-Feng& Yun, Zhen-Yu…[et al.]. 2014. Rapid Discrimination of the Geographical Origins of an Oolong Tea (Anxi-Tieguanyin) by Near-Infrared Spectroscopy and Partial Least Squares Discriminant Analysis. Journal of Analytical Methods in Chemistry،Vol. 2014, no. 2014, pp.1-6.
https://search.emarefa.net/detail/BIM-491968
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Yan, Si-Min…[et al.]. Rapid Discrimination of the Geographical Origins of an Oolong Tea (Anxi-Tieguanyin) by Near-Infrared Spectroscopy and Partial Least Squares Discriminant Analysis. Journal of Analytical Methods in Chemistry No. 2014 (2014), pp.1-6.
https://search.emarefa.net/detail/BIM-491968
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Yan, Si-Min& Liu, Jun-Ping& Xu, Lu& Fu, Xian-Shu& Cui, Hai-Feng& Yun, Zhen-Yu…[et al.]. Rapid Discrimination of the Geographical Origins of an Oolong Tea (Anxi-Tieguanyin) by Near-Infrared Spectroscopy and Partial Least Squares Discriminant Analysis. Journal of Analytical Methods in Chemistry. 2014. Vol. 2014, no. 2014, pp.1-6.
https://search.emarefa.net/detail/BIM-491968
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-491968
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر