Stärke und Malto-Oligosaccharide in Möhrensorten ausökologischer Züchtung
2009
Until now starch and its metabolites malto-oligosaccharides have been overlooked as
potentially important constituents of carbohydrates in carrots. A comparison of the
organically bred cultivars Rodelika and Robila with the hybrid cultivars Maestro F1 and
Starca F1 revealed that the content of malto-oligosaccharides in the organic cultivars
(126 and 191 mg g-1 dry matter, respectively) surpassed the content in the two hybrid
cultivars (86 and 89 mg g-1 dry matter, respectively), although the starch content was
similar in all cultivars (between 50 and 70 mg g-1 dry matter). There were also cultivar
differences in the pattern of glucose, fructose, and sucrose, however, the total amount
of water-soluble carbohydrates (between 550 and 600 mg g-1 dry matter) was similar
in each cultivar. Relatively high contents of starch and malto-oligosaccharides in carrot
cultivars may be a key factor for their storage potential and quality.
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