Akademska digitalna zbirka SLovenije - logo
VSE knjižnice (vzajemna bibliografsko-kataložna baza podatkov COBIB.SI)
  • Classification of Slovenian wine according to phenolic antioxidants and total antioxidant potential [Elektronski vir]
    Meden, Vesna Mila
    Nowadays consumers and the food trade are increasingly interested in the geographical origin and the quality of food products. Authentication of geographical origins of wine has become a more ... important task than ever. The best determination of the region of origin is possible on the basis of the analytical profile of wine. An attempt was made to find useful chemical markers, based on the analysis of individual phenolic antioxidants and total antioxidant potential of wine. Principal component analysis (PCA) and multivariate canonical discriminant analysis (DA) were used to classify 196 Slovenian wine samples (112 red, 64 white and 20 rosé wines and mixtures of red and white wines) according to type of wine and viny region based on content of gallic acid, quercetin, (+)-catechin, (-)-epicatechin, vanillic acid, trans- and cis-resveratrol, 3,4-dihydrobenzoic acid, sinapic acid, caffeic acid, chlorogenic acid, ferulic acid, p-coumaric acid, ellagic acid, caftaric acid and total antioxidant potential (TAP). Determination of phenolic antioxidants was accomplished by HPLC with mass spectrometric and UV/VIS detection. TAP was obtained with the spectrophotometric method described by Singleton and Rossi (TAPSP) and chemiluminometric method using ABEL test kit with Pholasin (TAPCL). Discriminant analysis of the variables studied made it possible to establish differences in type of wine and viny region. The most meaningful variables for the classification were TAPSP and content of HPLC-UV/VIS determined vanillic acid, 3,4-dihydrobenzoic acid, p-coumaric acid and (+)-catechin.
    Vir: International journal of agriculture innovations and research. - ISSN 2319-1473 (Vol. 4, Iss. 1, 2015, str. 169-174)
    Vrsta gradiva - e-članek
    Leto - 2015
    Jezik - angleški
    COBISS.SI-ID - 4001836

    Povezava(-e):

    http://www.ijair.org/administrator/components/com_jresearch/files/publications/IJAIR_1381_Final.pdf

Vnos na polico