Biomaterial Database

On the use of the fluorescence, ultraviolet-visible and near infrared spectroscopy with chemometrics for the discrimination between plum brandies of different varietal origins. 2018

M Jakubíková, and J Sádecká, and A Kleinová

Institute of Analytical Chemistry, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovak Republic.

This paper investigates the use of synchronous fluorescence, UV-Vis and near infrared (NIR) spectroscopy coupled with chemometric methods to discriminate samples of high-quality plum brandies (Slivovica) of different varietal origins (Prunus domestica L.). Synchronous fluorescence spectra (SFS) for wavelength differences in the range of 70-100nm, NIR spectra in the wavenumber range of 4000-7500cm-1 and UV-Vis spectra in the wavelength interval of 220-320nm were compared. The best discrimination models were created by linear discriminant analysis based on principal component analysis applied to SFS recorded with wavelength difference either 80nm or 100nm, allowing the classification of plum brandy according to harvest time as early (summer) and late (autumn) plum varieties; the total correct classifications were 96% and 100% for the calibration and prediction steps, respectively.

UI	MeSH Term	Description	Entries
D000068242	Prunus domestica	A plant species in the family ROSACEAE. It is a tree that produces fruits called plums.	Plum,Cherry Plum Tree,Japanese Plum,Plum Tree,Plums,Prunus cerasifera,Prunus salicina,Cherry Plum Trees,Japanese Plums,Plum Tree, Cherry,Plum Trees,Plum Trees, Cherry,Plum, Japanese,Plums, Japanese,Prunus salicinas,Tree, Cherry Plum,Tree, Plum,Trees, Cherry Plum,Trees, Plum,salicina, Prunus,salicinas, Prunus
D000434	Alcoholic Beverages	Drinkable liquids containing ETHANOL.	Alcoholic Beverage,Beverage, Alcoholic,Beverages, Alcoholic
D016002	Discriminant Analysis	A statistical analytic technique used with discrete dependent variables, concerned with separating sets of observed values and allocating new values. It is sometimes used instead of regression analysis.	Analyses, Discriminant,Analysis, Discriminant,Discriminant Analyses
D019265	Spectroscopy, Near-Infrared	A noninvasive technique that uses the differential absorption properties of hemoglobin and myoglobin to evaluate tissue oxygenation and indirectly can measure regional hemodynamics and blood flow. Near-infrared light (NIR) can propagate through tissues and at particular wavelengths is differentially absorbed by oxygenated vs. deoxygenated forms of hemoglobin and myoglobin. Illumination of intact tissue with NIR allows qualitative assessment of changes in the tissue concentration of these molecules. The analysis is also used to determine body composition.	NIR Spectroscopy,Spectrometry, Near-Infrared,NIR Spectroscopies,Near-Infrared Spectrometries,Near-Infrared Spectrometry,Near-Infrared Spectroscopies,Near-Infrared Spectroscopy,Spectrometries, Near-Infrared,Spectrometry, Near Infrared,Spectroscopies, NIR,Spectroscopies, Near-Infrared,Spectroscopy, NIR,Spectroscopy, Near Infrared
D025341	Principal Component Analysis	Mathematical procedure that transforms a number of possibly correlated variables into a smaller number of uncorrelated variables called principal components.	Analyses, Principal Component,Analysis, Principal Component,Principal Component Analyses