Abstract
A pure d-xylulose and standard was produced by isomerization of d-xylose in a recirculating flow system incorporating an enzyme reactor containing immobilized xylose isomerase. The d-xylulose formed was purified chromatographically. A selective chromatographic detection system was used in the post-column mode. It consisted of a co-immobilized enzyme reactor (CIMER) with xylose isomerase, mutarotase and glucose dehydrogenase on-line with a chemically modified electrode for selective elctrochemical oxidation of NADH. The pure standard was compared with commercially available d-xylulose, which was confirmed to contain impurities of d-glucose and d-xylose.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
