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ISHS Acta Horticulturae 682: V International Postharvest Symposium

CHEMICAL AND SENSORY CHARACTERISTICS OF SOME SCORZONERA (SCORZONERA HISPANICA L.) CULTIVARS

Authors:   A. Dolota, B. Dabrowska, J. Radzanowska
Keywords:   black salsify, colour, consistency, sugars, phenolic acids, dietary fibre, QDA method, variety screening
DOI:   10.17660/ActaHortic.2005.682.65
Abstract:
The study was conducted in the years 2002-2003 on seven scorzonera cultivars: ‘Duplex’, ‘Lange Jan’, ‘Maxima’, ‘Prodola’, ‘Westlandia’, ‘Einjährige Riesen’ and ‘Meres’. The following parameters were assayed in the roots of these cultivars: the content of total carbohydrate, inulin, fibre and its fractions (NDF, ADF and ADL) and the sum of phenolic acids as well as their sensory quality, using Quantitative Descriptive Analysis (QDA). Sensory profiling analysis and its PCA projections explained more than 70% of the total variability of the roots of scorzonera. Consistency attributes of “softness” and “tenderness” mainly determined the distinction of the examined cultivars and their general evaluation. The content of inulin as well as ADF and ADL fibre fractions did not influence the chosen sensory attributes in a significant way. The sensory quality of ‘Prodola’ and ‘Einjährige Riesen’ cultivars was clearly different from the quality of the remaining cultivars.

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