Patent · US Expired

Production of dextrose and maltose syrups using an enzyme derived from rice

US4734364A · kind A · utility

10Cited by
9References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 16, 1986
Grant dateMar 29, 1988
Priority date
Expiry dateJan 16, 2006

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S435/814
  • WIPO fieldBiotechnology
  • WIPO sectorChemistry

Abstract

A sugar syrup is prepared by saccharifying a liquefied starch hydrolyzate at a pH of about 4 to about 5.5 and a temperature above 55.degree. C. with a heat stable, aciduric, pullulanase obtained from rice and an .alpha.-1,4 carbohydrase. The pullulanase employed is substantially free of maltase and transglucosidase activity. In one embodiment, a dextrose syrup is prepared by saccharifying a thinned starch hydrolyzate with glucoamylase and the rice pullulanase. Maltose syrup is prepared using the rice pullulanase and a maltogenic enzyme.

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