Enzymatic Degumming

  • Author: Lisa-Marie Rauschendorfer 
  • Published: 10 September 2014
  • Copyright: Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
  • Source / Publisher: European Journal of Lipid Science and Technology/Wiley-VCH
thumbnail image: Enzymatic Degumming

Edible vegetable oils need to be refined in order to remove undesired impurities that affect the quality, taste and shelf life of the oil. For this purpose two different processes can be used, namely chemical or physical refining. For an effective physical refining, the degumming process is crucial. Here, phospholipids (PLs) are removed to an amount less than 10 mg/kg. PLs in vegetable oils are divided into hydratable phospholipids, which can be easily removed during water degumming, and non-hydratable phospholipids (NHP), which are more difficult to remove.


Christian Stevens, Ghent University, Belgium, and colleagues used the enzyme phospholipase A1 for the degumming of soybean and rapeseed oil. A good degumming efficiency is obtained after a short reaction time, but a complete degradation requires reaction times of 2 h. Even though the enzyme has no specificity for certain PLs, the rate of conversion depends on the PL composition of the oil. For example 80 % of the phosphatidyl ethanolamine, but only 40 % of phosphatidyl inositol are degraded during the same time interval.
This finding is important for the optimization of enzymatic degumming in the refining industry.


 

Article Views: 2577

Sign in Area

Please sign in below

Additional Sign In options

Please note that to comment on an article you must be registered and logged in.
Registration is for free, you may already be registered to receive, e.g., the newsletter. When you register on this website, please ensure you view our terms and conditions. All comments are subject to moderation.

Article Comments - To add a comment please sign in

If you would like to reuse any content, in print or online, from ChemistryViews.org, please contact us first for permission. more


CONNECT:

ChemistryViews.org on Facebook

ChemistryViews.org on Twitter ChemistryViews.org on YouTube ChemistryViews.org on LinkedIn Sign up for our free newsletter


Magazine of Chemistry Europe (16 European Chemical Societies)published by Wiley-VCH