GMO COMPASS - Information on genetically modified organisms
  Oct 25, 2014 | 9:45 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

Protease

 

Function Breakdown and modification of proteins
Application Bakery, fish, meat, flavourings, baby food
Production using gene technology widespread
Labelling no

Function

Protease is the collective name for various enzymes that break down or modify proteins or peptides (building blocks of proteins).

Proteases are produced naturally by many microbes; they also occur in many animals and plants.

  • Animals produce digestive enzymes that break down proteins, such as trypsin, pepsin or chymosin.

  • Some plants, such as pineapple, have a high protease content. The main enzyme of pineapple is called papain.

  • Many foodstuffs (meat, cheese, fish) also contain proteases or activate them during the process of maturing. The "hanging" of meat activates digestive enzymes that tenderize the meat.

Application

Commercial protease preparations usually consist of a mixture of various protease enzymes. They are largely utilized in food processing:

  • as a baking enzyme to improve the workability of dough – particularly in crackers and biscuits (bakery);

  • in the extraction of seasonings und flavourings (cheese flavours) from vegetable or animal proteins (such as whey or milk proteins); in the manufacture of sauces (mainly: soya sauce) and yeast extract;

  • to optimize and control the aroma formation in cheese and milk products;

  • as flavour enhancers in savoury seasonings;

  • to improve the texture of fish products, and in fish processing (such as in the production of filleted fish);

  • to tenderize meat (not permitted in Germany) and in the manufacture of meat extracts;

  • during cold stabilization of beer (in Germany, the purity law for beer prohibits the use of enzymes);

  • particular proteases are also used for the production of hypoallergenic food . These proteases break down specific allergenic proteins that can cause allergic reactions in sensitized people. Proteases are utilized, for example, to produce hypoallergenic baby food from cow’s milk. The proteases break down milk proteins into small peptides and amino acids, thus diminishing the risk of babies developing milk allergies. 

Further applications:

  • in detergents: proteases remove protein-containing stains

  • in the leather industry, treatment of wool and raw silk

  • as additives in pet food (better uptake of nutrition, due to the partial breakdown of proteins)

Gene technology

Proteases are produced in bacterial and fungal cultures through fermentation.

  • There is a multitude of proteases available commercially. In Europe alone there are 40 protease preparations on the market.

  • Fifteen of these protease preparations can be produced with genetically modified microorganisms (such as Aspergillus, Bacillus).

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]

© 2014 by GMO Compass. All rights reserved. | Imprint | website created by webmotive