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Effects of cultivar, root weight, storage and boiling on carbohydrate content in carrots (Daucus carota L)

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Author

Summary, in English

The effects of cultivar (n = 4), root weight (n = 4), storage (S months) and boiling (7 min) and their interactions on the content of dry matter and carbohydrates were studied and ranked in carrots. Boiling had the greatest effect and had an influence on all variables except the ratio between sucrose and the monosaccharides glucose and fructose. The choice of cultivar was also of great importance as regards glucose, fructose and sucrose content, while dietary fibre and dry matter were much less affected, or even unaffected, by this factor. Root weight and storage were consistently of less significance than boiling and cultivar. Thus dietary fibre solubility, fructose content and the ratio between sucrose and the monosaccharides glucose and fructose were independent of the root weight, while storage had no impact on the dry matter content. After storage the cultivar Lonto had lost more dry matter than the other cultivars (10% versus mean 1% for the others, P = 0.009) and the sugar ratio between sucrose and the monosaccharides glucose and fructose had increased in the cultivar Amarant, while it decreased in the other cultivars (P < 0.001). Furthermore, Amarant had a lower loss of sugars (35%) following boiling than the other cultivars (mean 39%, P = 0.002). Storage and boiling interacted concerning soluble and insoluble dietary fibre, fibre solubility and glucose content. It is concluded that the various factors (especially boiling and cultivar) gave rise to such differences in carbohydrate content and composition that they might be of nutritional importance. The results may thus provide a basis for selecting raw material when studying possible health effects of carrots. © 2004 Society of Chemical Industry.

Publishing year

2005

Language

English

Pages

441-449

Publication/Series

Journal of the Science of Food and Agriculture

Volume

85

Issue

3

Document type

Journal article

Publisher

Wiley-Blackwell

Topic

  • Agricultural Science, Forestry and Fisheries

Status

Published

ISBN/ISSN/Other

  • ISSN: 1097-0010