The aim of this study was to establish the relationship between the large groups of polyphenols (total phenols, total anthocyanins, low molecular weight proanthocyanidins as well as high molecular ...weight proanthocyanidins) and sensory perception of native Croatian red wine Babić.Sensory evaluation of four types of wines produced at different pomace contact times and temperatures was conducted by 11 panellists who rated the intensity of astringency, bitterness and overall sensory impression of each wine. Complex observations of sensory and analytical values (using principal component analysis, PCA) indicate the acceptability of the wine. In order to compare the obtained results, chemometric methods, particularly principal component analysis (PCA), were conducted for sensory evaluation of the data and identification of wine. Analysis of the score plot of the PCA for the monitored values showed that over 85% of the total variance in the data can be described by PC 1 and PC 2. Results of this study demonstrate a strong correlation between the concentration of polyphenols and the sensory attributes. Decreasing macerationtemperature leads to the best perception of astringency and overall impression in younger wines. Prolongation of pomace contact time resulted in the best attributes of astringency, bitterness and overall impression in aged wines.
Sixteen native central Dalmatian grapevine cultivars were characterised at eight SSR loci and eighteen primary morphological descriptors. The present work describes for the first time twelve native ...Dalmatian cultivars with morphological and molecular descriptors. One pair of synonyms was determined (‘Babić’/’Rogoznička’), and the other previously assumed pair (’Crljenak Kaštelanski’/’Pribidrag’) was verified. The remaining cultivars showed unique SSR genotype and seemed to be different from any other previously described Croatian cultivars. The results of SSR characterisation suggested the possibility of parent-offspring relationship between ’Babić’ and ’Dobričić’ and between ’Plavac Mali’ and ’Babica’. Phenotypic relationship among cultivars based on morphological data (d-values) was determined according to original mathematical algorithm. The d-value proved to be informative and showed rather clear ability to discriminate between Dalmatian cultivars. Significant but weak correlation (r = -0.38) was observed by comparing the similarity matrices obtained from morphological and SSR data using the Mantel test.