摘要:
The invention relates to a variant of a parent Fungamyl-like fungal alpha-amylase, which exhibits improved thermal stability at acidic pH suitable for, e.g., starch processes.
摘要:
A process for producing a starch comprises treating a feed starch that comprises amylopectin with glucanotransferase to produce a chain-extended starch, and treating the chain-extended starch with a debranching enzyme to produce a starch product that comprises amylose fragments. At least about 38% by weight of the amylose fragments have a degree of polymerization (DP) of at least about 35.
摘要:
The present invention relates to a process for enzymatic hydrolysis of granular starch into a soluble starch hydrolysate at a temperature below the initial gelatinization temperature of said granular starch.
摘要:
The present invention relates to a process for enzymatic hydrolysis of granular starch into a soluble starch hydrolysate at a temperature below the initial gelatinization temperature of said granular starch.
摘要:
The present invention relates to a method for the production of saccharide preparations, i.e., syrups, by saccharifying a liquefied starch solution, which method comprises a saccharification step during which step one or more enzymatic saccharification stages takes place, and the subsequent steps of one or more high temperature membrane separation steps, and recirculation of the saccharification enzyme, in which method the membrane separation steps are carried out as an integral part of the saccharification step.
摘要:
The ALDC derivative is produced by treating ALDC in an aqueous medium with glutaraldehyde in defined proportions with optional subsequent immobilization. The ALDC derivative which is used in beer fermentation exhibits a satisfactory stability at low pH.
摘要:
Physically strong particles containing an immobilized enzyme are prepared for use in a fixed bed-column. The particles are prepared by adding a homopolymer of 1-amino ethylene or a copolymer of 1-amino ethylene and N-vinyl formamide to an aqueous medium containing an enzyme, adding a cross-linking agent to cross-link the enzyme and polymer and cause flocculation, and dewatering, sub-dividing and drying the resultant flocculant. Preferably, the enzyme is glucose isomerase and the cross-linking agent is glutaraldehyde, polyazetidine or diisocyanate.