| Title: | "Physicochemical, Spectroscopic, and Chromatographic Analyses in Combination with Chemometrics for the Discrimination of the Geographical Origin of Greek Graviera Cheeses" |
| Author(s): | Vatavali KA; Kosma IS; Louppis AP; Badeka AV; Kontominas MG; |
| Address: | "Laboratory of Food Chemistry, Department of Chemistry, University of Ioannina, 45110 Ioannina, Greece. CP FoodLab Ltd., 25 Polyfonti Str. P.O. Box: 28729, Strovolos- Nicosia 2082, Cyprus" |
| DOI: | 10.3390/molecules25153507 |
| ISSN/ISBN: | 1420-3049 (Electronic) 1420-3049 (Linking) |
| Abstract: | "Seventy-eight graviera cheese samples produced in five different regions of Greece were characterized and discriminated according to geographical origin. For the above purpose, pH, titratable acidity (TA), NaCl, proteins, fat on a dry weight basis, ash, fatty acid composition, volatile compounds, and minerals were determined. Both multivariate analysis of variance (MANOVA) and linear discriminant analysis (LDA) were applied to experimental data to achieve sample geographical discrimination. The results showed that the combination of fatty acid composition plus minerals provided a correct classification rate of 89.7%. The value for the combination of fatty acid compositions plus conventional quality parameters was 94.9% and for the combination of minerals plus conventional quality parameters was 97.4%. When cheeses of the above five geographical origins were combined with previously studied graviera cheeses from six other geographical origins collected during the same seasons in Greece, the respective values for the discrimination of geographical origin of all eleven origins were 89.3% for conventional quality parameters plus minerals; 94.0% for conventional quality parameters plus fatty acids; 94.1% for minerals plus fatty acids; and 95.2% for conventional quality parameters plus minerals plus fatty acids. Such high correct classification rates demonstrate the robustness of the developed statistical model" |
| Keywords: | Analysis of Variance Cheese/*analysis Discriminant Analysis Fatty Acids/analysis/isolation & purification Gas Chromatography-Mass Spectrometry Greece Hydrogen-Ion Concentration Minerals/analysis Solid Phase Extraction Volatile Organic Compounds/analysis/i; |
| Notes: | "MedlineVatavali, Kornilia A Kosma, Ioanna S Louppis, Artemis P Badeka, Anastasia V Kontominas, Michael G eng MIS348127/NSRF/ Switzerland 2020/08/06 Molecules. 2020 Jul 31; 25(15):3507. doi: 10.3390/molecules25153507" |
