Abstract
1,5-Anhydro- d-fructose ( AF), a metabolite of starch/glycogen degradation, is a good antioxidant. With the prospect of increasing its applications and use as a food ingredient, AF glucosylation catalysed by the dextransucrase from Leuconostoc mesenteroides NRRL B-512F was performed in the presence of sucrose. This led to AF glucosylated derivatives containing α-(1→6) linkages named 1,5-anhydro- d-fructo-glucooligosaccharides ( AFGOS). LC–MS analyses showed that AFGOS with a degree of polymerisation (DP) of up to 7 were synthesised. The amount of AFGOS produced and the average DP increased by using a high sucrose/ AF molar ratio and high total sugar concentration. AFGOS were proved to present antioxidant properties quite similar to AF.
Published Version
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