The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 06, 2012
Filed:
Aug. 16, 2011
Taizo Nagura, Obihiro, JP;
Katsuya Honjyo, Obihiro, JP;
Hiroto Kikuchi, Obihiro, JP;
Norimitsu Takagi, Obihiro, JP;
Tsutomu Aritsuka, Obihiro, JP;
Taizo Nagura, Obihiro, JP;
Katsuya Honjyo, Obihiro, JP;
Hiroto Kikuchi, Obihiro, JP;
Norimitsu Takagi, Obihiro, JP;
Tsutomu Aritsuka, Obihiro, JP;
Nippon Beet Sugar Manufacturing Co., Ltd., Tokyo, JP;
Abstract
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.