Process for production of crystalline L-arabinose

US4816078A · kind A · utility

Assignee

• Suddeutsche Zucker-Aktiengsellschaft · DE

Inventors

• Hubert Schiweck · Worms, DE
• Manfred Vogel · Ditzingen, DE

Key dates

• Filing date: Jan 21, 1988
• Grant date: Mar 28, 1989
• Expiry date: Jan 21, 2008

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07H3/02
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention concerns a process for production of L-arabionose in crystalline form. Starting material are extracted sugar beet pulp or other L-araban containing plant materials. These are heated in an autoclave as an aqueous suspension in the presence of Ca(OH).sub.2. The so obtained solution is chromatographed on a cationic exchanger in the Ca-form. The araban containing fraction is hydrolyzed after adding H.sub.2 SO.sub.4, neutralized and rechromatographed on a cationic exchanger in Ca-form. After concentrating the arabinose containing fractions L-arabinose is obtained in form of crystals by cooling crystallization.