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PROCESS FOR PRODUCING DIFRUCTOSE DIANHYDRIDE III CRYSTALS
PROCESS FOR PRODUCING DIFRUCTOSE DIANHYDRIDE III CRYSTALS
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机译:制备二葡萄糖二酐III晶体的方法
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摘要
A process for producing the crystals of difructose dianhydride III (DFA III), namely a indigestible disaccharide where two fructose molecules are bonded to each other at positions 1,2′ and 2,3′ (di-D-fructofuranose-1,2′:2,3′-dianhydride), where solutions containing DFA III are adjusted to and/or maintained at pH 5 or more, preferably pH 5 to 8, and more preferably 6 to 8. DFA III can be produced industrially without lowering the crystal yield even when the crystallization thereof is done in a recycling system; additionally by adjusting the total fructose content in mother solutions for (crude) crystallization to 5% or less per a solid content basis and adjusting the fructose content to 1% or less, DFA III can more effectively be produced.
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