GMO COMPASS - Information on genetically modified organisms
  Jul 30, 2010 | 2:30 am
Site Search
Searches all of GMO-Compass in an instant
The setting-up of this website was financially supported by the European Union within the European Commission’s Sixth Framework Programme from 1 January 2005 until 28 February 2007.

The European Commission and other EU agencies are not responsible for the content.
See what’s what.
The GMO Food Database
The GMO Food Database.
You want to know for which food products or plants gene technology plays a role?

Then enter here the name of a plant, foodstuff, ingredient or additive:

Database search
All database entries in overview:
Plants
Foodstuffs
Ingredients and additives
Additives according to E numbers
Enzymes


Please note that the GMO Compass Database currently is being expanded and updated. Please check back for new entries.

Newsletter
Sign up to receive regular updates on GM food quality and safety.
To change or cancel your subscription, please enter your email above.
Contact
Comments, suggestions or questions?
Please contact us at info@gmo-compass.org
Change font size
1 2 3

Glucose isomerase

 

Function Conversion of glucose to fructose
Application Starches (breakdown of starches to sugars)
Production using gene technology widespread
Labelling no

Function

Glucose isomerase converts glucose into fructose.

Application

Glucose isomerase is used almost exclusively in the conversion of starches to sugars.

In the first step of this process, the plant starch (primarily from maize) is "liquefied" and split into the basic sugars glucose and fructose.  In this process, amylases and other starch-splitting enzymes are used.

In the second step, glucose isomerase converts a portion of the glucose into fructose. Since fructose is sweeter than glucose, the "sweetness" of the syrupy glucose-fructose mixture and achieves almost the same sweetness as sugar. Syrups with high fructose content also are referred to as fructosesyrup, isoglucose or High Fructose Corn Syrup (HFCS).

Particularly in the USA, these syrups largely have replaced the traditional cane or beet sugar in lemonade and cola beverages.

  • The enzyme glucose-isomerase is normally "immobilised" when used, i.e., it is fixed to a transporter and is not transferred to the product or ingredient on which it is used.

Gene technology

Glucose isomerase is produced through fermentation with microorganisms. A variety of bacteria cultures are used.

  • One of three preparations that are marketed in the EU is manufactured with the aid of genetically modified microorganisms (Streptomyces).

Labelling: labelling of enzymes in regard to their production using GM microorganisms is generally not foreseen in the European Union.

 
GMO Database
 
GM Food and Feed: Authorization in the EU
GMO Database: Contains information on every GM plant that has been approved or is awaiting authorisation in the EU.
Quickjump:
 
Advanced Search
July 7, 2010 [nach oben springen]

© 2010 by GMO Compass. All rights reserved. | Imprint | website created by webmotive