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:
Jul. 05, 1977
Filed:
Aug. 23, 1976
Robert Ernest Brouillard, Cedar Rapids, IA (US);
Penick & Ford, Limited, Cedar Rapids, IA (US);
Abstract
A column apparatus and process is provided for immobilized enzyme reactions using a bed of starch in sponge form, the starch having been chemically modified to incorporate enzyme-immobilzing groups. The starch sponge bed of the column apparatus has a flow of direction length of 2 to 5 feet or more, and a water flow porosity such that over 0.5 (preferably over 1.0) gal.water/min.ft..sup.2 flows through the bed. The apparatus and process can be used with a wide variety of enzymes. It has applicability to the enzymatic conversion of starch hydrolysates, since the starch forming the sponge bed can be cross-linked to increase its resistance to enzyme attack. Starch-derived sugar syrups having D.E.'s of 40 to 97 can be produced. Also, isomerization of glucose syrups can be carried out to produce a syrup of enhanced sweetness, comprising a mixture of glucose and fructose.