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Parameters for Carrot Quality: and the development of the Inner Quality concept

Northolt, Martin; van der Burgt, Geert-Jan; Buisman, Thiemo and Vanden Bogaerde, Arne (2004) Parameters for Carrot Quality: and the development of the Inner Quality concept. [Met Nederlandse samenvatting: Parameters voor wortelkwaliteit en de ontwikkeling van het Innerlijke Kwaliteitsconcept / mit deutscher Zusammenfassung: Parametern für Möhrenqualität und die Entwicklung des Begriffs der Inneren Qualität.] Louis Bolk Instituut Publications, no. GVV05 / FQH04. Louis Bolk Instituut.

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Summary

The life processes of the carrot plant were demonstrated by various parameters in this study.
Growth processes, including photosynthesis, absorption of nitrogen and other nutrients and formation of cells, tissues and organs, are measured by the parameters weight of leaves and roots and emission 30-50 white of delayed luminescence. The nitrate content may indicate growth but has to be investigated further.
Differentiation processes, including refining, ordering, ripening and secondary metabolisms, are measured by the parameters root stumpiness, saccharose, sweetness, dry matter and emission 30-50 ratio of delayed luminescence. Some other parameters may indicate differentiation processes but have to be further investigated: leaves/root weight ratio, monosaccharides/saccharose ratio, carotenes, initial and total emission white, hyperbolicity ratio and slope white of delayed luminescence.
Integration of growth and differentiation is measured by resistance to pests and disease, total appreciation and storage test. Some other parameters may indicate integration but need further investigation: carrot taste, slope white of delayed luminescence.
Copper chloride crystallisation did not produce clear pictures due to failure of the method applied and should be further investigated since, in the Apple-1 and -2 studies (Bloksma et al., 2001, 2004 b), it was one of the indicators of the life processes.
Electro-chemical parameters, except possibly pH, did not indicate growth processes in his study or in the Apple-1 and -2 studies.


EPrint Type:Report
Keywords:organic food quality, inner quality concept, carrot, fertilisation, nitrogen, light, morphology, saccharose, dry matter, nitrate, protein ratio, carotenes, sensoric properties, luminescence, biophotones, copper chloride crystallisations, biocrystallisation, pH, redox potential, electrical resistance, storage test.
Subjects: Food systems > Food security, food quality and human health
Knowledge management > Research methodology and philosophy > Specific methods
Crop husbandry > Production systems > Root crops
Research affiliation: Netherlands > Louis Bolk Institute
Deposited By: Steinbuch, Luc
ID Code:4265
Deposited On:17 Feb 2005
Last Modified:12 Apr 2010 07:30
Document Language:English
Status:Published
Refereed:Not peer-reviewed

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