Application of Polarized Projective Mapping combined with Ultra Flash Profiling to a complex − high fatigue product category: The case of Greek grape marc spirits

Tsapou, E.A.; Tzortzis, P.M.; Koussissi, E.

doi:10.1016/j.foodqual.2024.105182

Cited by 1 publication

(2 citation statements)

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“…Each variant, whether the Iberian Peninsula's Orujo, Italy's Grappa, Cyprus's Zivania, or the diverse expressions of grape marc worldwide, encapsulates the essence of its region and the craftsmanship of its makers [1]. These spirits emerge as liquid ambassadors, reflecting the historical evolution of viticulture and the utilization of grape pomace-a byproduct of winemaking that, rather than being discarded, undergoes meticulous distillation to yield beverages of distinct character [2]. The global diversity of grape marc spirits is a testament to the terroir-driven approach, where geographical and climatic conditions shape the unique qualities of the pomace.…”

Section: Introductionmentioning

confidence: 99%

“…Previously, we utilized novel sensory methodologies [2] and Gas Chromatography-Mass Spectrometry (GC-MS) analyses combined with chemometrics [1] to understand product differentiation within that complex category of spirits. GC-MS analyses were also applied in other studies of grape marc spirits from Greece [3] and also recently together with chemometrics [23].…”

Section: Introductionmentioning

confidence: 99%

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Emphasizing the Potential of Attenuated Total Reflectance–Fourier Transform Infrared (ATR-FTIR) Spectroscopy Combined with Chemometrics, for Classification of Greek Grape Marc Spirits

Tsapou,

Sinanoglou,

Ntourtoglou

et al. 2024

Beverages

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Grape marc spirits, such as the Greek tsipouro/tsikoudia, reflect the cultural heritage of winemaking traditions worldwide. This study explored the application of Attenuated Total Reflectance–Fourier Transform Infrared (ATR-FTIR) spectroscopy combined with chemometrics for its potential as a fast classification methodology for spirit characterization. ATR-FTIR spectra from thirty-nine products revealed distinctive bands corresponding to various chemical constituents, such as alcohols, organic acids, water, carbohydrates, and phenols. Principal Component Analysis (PCA) was performed on all acquired ATR-FTIR data and 78.50% of the total variance in the data was explained. Also, partial least squares–discriminant analysis (PLS-DA), used for the classification of products based on their major geographic origin, gave a correct classification of 89.5% for the north and 83.3% for the south of Greece. Classification of the type of distillations used was with 74.36% accuracy. Significant markers were identified through analysis, such as those associated with the O-H bending vibrations of phenols or alcohols, contributing to the discrimination of grape marc spirits from Crete when compared with the other four main geographical origin designations. By combining ATR-FTIR spectroscopy with chemometrics, this research gave insights into the origins and compositional variations of the spirits, providing an opportunity for a quality control assessment tool.

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Section: Introductionmentioning

confidence: 99%