Patent · US Expired

Preparation of levulose from granular starch

US4009074A · kind A · utility

33Cited by
6References
12Claims
0Family size

Assignee

Inventor

Key dates

Filing dateMar 13, 1975
Grant dateFeb 22, 1977
Priority date
Expiry dateMar 13, 1995

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S435/887
  • WIPO fieldFood chemistry
  • WIPO sectorChemistry

Abstract

A process for the direct conversion of granular starch to levulose comprising mixing a granular starch with water, bacterial alpha-amylase, glucoamylase and a glucose isomerase derived from Streptomyces albus at a temperature of from about 40.degree. to about 70.degree. C. and a pH of from about 5.0 to about 7.0 and maintaining the starch in essentially granular form until a soluble hydrolysate containing levulose is produced, wherein any residual insoluble starch is in essentially granular, ungelatinized form.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.