Quantification of caffeine and catechins and evaluation of bitterness and astringency of Pu-erh ripen tea based on portable near-infrared spectroscopy
ZhongDong Wu, Chenghuan Li, Hongcheng Liu, Tao Lin, Lunzhao Yi, Dabing Ren, Ying Gu, Shuo Wang
Topics & Concepts
ChemistryPartial least squares regressionCaffeineEpicatechin gallateGallateFood scienceCatechinChromatographyChemometricsPolyphenolMathematicsPsychologyOrganic chemistryStatisticsAntioxidantPsychiatryNuclear chemistrySpectroscopy and Chemometric AnalysesPhytochemicals and Antioxidant ActivitiesFermentation and Sensory Analysis