期刊
CARBOHYDRATE RESEARCH
卷 340, 期 3, 页码 395-401出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carres.2004.10.026
关键词
1,5-anhydro-D -fructose; 1,5-anhydro-D-fructoglucooligosaccharides; dextransucrase; Leuconostoc mesenteroides; acceptor reaction
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 alpha-(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. (C) 2004 Elsevier Ltd. All rights reserved.
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