Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 402375
Title Effect of Drying on the Color of Tarragon (Artemisia dracunculus L.) Leaves
Author(s) ArabHosseini, A.; Padhye, S.; Huisman, W.; Boxtel, A.J.B. van; Müller, J.
Source Food Bioprocess Technology 4 (2011)7. - ISSN 1935-5130 - p. 1281 - 1287.
Department(s) ATV Farm Technology
Systems and Control Group
Publication type Refereed Article in a scientific journal
Publication year 2011
Keyword(s) thermal kinetics - puree - degradation - quality
Abstract The effect of drying conditions on the color of tarragon (Artemisia dracunculus L.) leaves was studied. Tarragon leaves were dried at temperatures of 40 to 90 °C with a constant airflow of 0.6 m/s. The samples were collected at 7%, 10%, 20%, and 30% moisture content wet basis for evaluation of the color change. The color parameters of fresh and dried leaves were measured by a colorimeter. The individual parameters of L*a*b* and L*C*h° color systems were evaluated and h° proved to be the best parameter to monitor color change. The smallest change of the color parameters was observed at 40 °C, in which temperature was low, and also at 90 °C, when drying time was short. The biggest change occurred at the temperatures of 50 to 70 °C. Most of the color change happened before the material reaches 35% moisture content. The combination of drying time and temperature defines the change of color.
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