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    • 2. 发明授权
    • Alkylidenation of fructose with perfluorinated acid catalysts
    • 用全氟酸催化剂对果糖进行烷基化
    • US4464204A
    • 1984-08-07
    • US445114
    • 1982-11-29
    • Carl W. NiekampMartin Seidman
    • Carl W. NiekampMartin Seidman
    • C07H3/02C07H9/04C07H1/06C13D3/14C13K11/00
    • C07H9/04C07H3/02
    • Aqueous fructose and aldehydes, ketones and/or acetals may be effectively catalyzed into alkylidene fructose derivatives with immobilized acid catalysts. The reaction provides a means for enriching the fructose content of conventional high fructose corn syrups. Perfluorinated acid resins are especially effective catalysts for converting aqueous fructose and acetone solutions into diacetone fructose. Catalysis with the perfluorinated acid resins may be conducted at significantly lower conversion temperatures with superior reactant and reaction product exchange rates. Enrichment of high fructose corn syrups may be generally accomplished by catalyzing the fructose and acetone into a diacetone fructose solution with the perfluorinated acid resin, allowing the dextrose to precipitate from the diacetone solution, hydrolyzing the diacetone fructose to fructose and recovery of the enriched fructose product therefrom. The water-insoluble catalysts afford a reusable catalyst system which can be easily separated from the processed products. The perfluorinated acid resins produce a high quality, food-grade syrup products essentially free of ash, organoleptic bodies (e.g. flavoring, coloring, etc.) and other objectionable by-product contaminants.
    • 含水果糖和醛,酮和/或缩醛可以用固定化的酸催化剂有效地催化成亚烷基果糖衍生物。 该反应提供了富集常规高果糖玉米糖浆的果糖含量的方法。 全氟酸树脂是将水果果糖和丙酮溶液转化为双丙酮果糖的特别有效的催化剂。 使用全氟酸树脂的催化可以在显着较低的转化温度下进行,具有优异的反应物和反应产物的交换速率。 高果糖玉米糖浆的富集通常可以通过用全氟酸树脂将果糖和丙酮催化成双丙酮果糖溶液,使右旋糖从双丙酮溶液中沉淀出来,将双丙酮果糖水解成果糖并回收富含果糖的产物 由此。 水不溶性催化剂提供可重复使用的催化剂体系,其可以容易地与加工产物分离。 全氟酸树脂产生基本上不含灰分,感官体(如调味剂,着色剂等)和其它令人反感的副产物污染物的高质量食品级糖浆产品。
    • 5. 发明授权
    • Raw starch saccharification
    • 生淀粉糖化
    • US4618579A
    • 1986-10-21
    • US656051
    • 1984-09-28
    • Bruce L. DwigginsCarl E. PickensCarl W. Niekamp
    • Bruce L. DwigginsCarl E. PickensCarl W. Niekamp
    • A23L1/09C12N9/34C12P19/20C12R1/645C12P19/14
    • C12N9/2428C12P19/20Y10S435/911
    • A multi-step process is provided for solubilizing and saccharifying granular starch slurries of between 20 and 60% d.s. starch. In a first step, an enzyme mixture exhibiting raw starch hydrolyzing activity is added to the slurry and maintained in contact therewith until at least a substantial portion but less than all of the starch is solubilized. The resulting syrup is separated from the remaining insoluble fraction. In a second step, the insoluble fraction is used to prepare a second slurry containing less than about 20% d.s. starch, and this second slurry is solubilized with a raw starch hydrolyzing enzyme preparation until substantially all (e.g., at least about 95% or more) of the starch is solubilized. The pooled syrup from the two steps is over about 20 weight percent saccharides, at least about 95% of which is glucose.
    • 提供了一种多步骤方法,用于增溶和糖化20-60%d.s的颗粒状淀粉浆。 淀粉。 在第一步中,将表现出生淀粉水解活性的酶混合物加入到浆料中并与之保持接触,直至至少大部分但少于所有淀粉溶解。 将所得糖浆与剩余的不溶性部分分离。 在第二步中,不溶级分用于制备含有少于约20%d.s的第二浆料。 淀粉,并且用生淀粉水解酶制剂溶解该第二浆料,直到基本上全部(例如,至少约95%或更多)淀粉溶解。 来自两个步骤的汇集的糖浆超过约20重量%的糖,其中至少约95%是葡萄糖。