Iron containing cell mass glucose isomerase preparation

US4152211A · kind A · utility

Assignee

• Novo Industri A/S · DK

Inventors

• Tage Kjaer Nielsen · Avenue Madeleine, DK
• William Carasik · Ridgewood, US
• Lena E. Zittan · Kokkedal, DK
• Keith Gibson · Frederikssund, DK

Key dates

• Filing date: Aug 23, 1977
• Grant date: May 1, 1979
• Expiry date: Aug 23, 1997

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C12N9/92
• WIPO field: Biotechnology
• WIPO sector: Chemistry

Abstract

Iron activation of cell mass of glucose isomerase preparations carried out by direct incorporation of 0.05-2.0% w/w dry basis of iron as a solid water soluble non-toxic iron salt. Preferred compositions are dry state particulate glucose isomerases containing 0.05-2.0% iron, 0.5-3.0% magnesium oxide, and 2-15% dextrose monohydrate all w/w.