GMO COMPASS - Information on genetically modified organisms
  Feb 11, 2012 | 10:40 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
Recommend this page to a friend or colleague

E-MAIL (Recipient)
NAME (Recipient)
   

YOUR E-MAIL (Sender)
YOUR NAME (Sender)
   

Pullulanase

 

Function Breakdown of starches
Application Saccharification, uses in the starch industry
Production using gene technology widespread
Labelling no

Function

Pullulanases (also known as isoamylases) cleave large molecules of polysaccharides, such as starches, at specific locations within the molecules.

The starch granules in plants contain starch in two different forms: amylose (20-30%) and amylopectin (70-80%):

  • amylopectin is the main constituent of starch and consists of large multibranched molecules.

  • amylose occurs as long chains of molecules.

  • the ratio of mix of these respective starch types determines the technical and sensorial properties of a starch and its applications.

Pullulanases cleave the branches of amylopectin molecules and produce thereby chains of amylose.

Application

Pullulanase is used predominantly in conjunction with other enzymes that break down starch (glucoamylase)

  • in the saccharification of starch: it makes the conversion of starch into glucose and glukose syrup more efficient

  • occasionally as a baking enzyme

  • in beer brewing (not permitted in Germany)

Gene Technology

Pullulanases are produced through fermentation, utilizing cultures of bacteriae (Bacillus and Klebsiella) or fungi (Trichoderma).

  • Three of six preparations of pullulanases are produced in Europe,  with the aid of genetically modified micro-organisms. These are used predominantly during the saccharification of starch.

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]

© 2012 by GMO Compass. All rights reserved. | Imprint | website created by webmotive