Featured Research

from universities, journals, and other organizations

Engineering wheat arabinoxylan for new applications

Date:
May 5, 2010
Source:
VTT Technical Research Centre of Finland
Summary:
Arabinoxylan, the major dietary fiber component of wheat bran, is important both from the technological and nutritional point of view. New enzymatic technologies were developed in the HEALTHGRAIN project to partly and selectively degrade arabinoxylan. The results offer potential for a new soluble fiber ingredient based on wheat bran.

Arabinoxylan, the major dietary fibre component of wheat bran, is important both from the technological and nutritional point of view. New enzymatic technologies were developed in the HEALTHGRAIN project to partly and selectively degrade arabinoxylan. The results offer potential for a new soluble fibre ingredient based on wheat bran.

The health benefits of cereal fibre, in particular in the prevention of lifestyle diseases such as diabetes, obesity, cardiovascular diseases, and cancer, are today generally recognized. Authoritative dietetic associations all around the world recommend consumption of cereal based products containing bran and fibre over products prepared from refined cereals. Arabinoxylan is the major dietary fibre component of both wheat and rye. It thus offers many possibilities for new ingredient manufacture.

Xylanase enzymes offer an efficient and specific tool to solubilise arabinoxylan polymers, and further to produce short-chain arabinoxylan oligosaccharides (AXOs). New xylanase enzymes were identified and characterized to have specific activities, and also to operate in the high temperature conditions during baking. One approach was to enzymatically solubilize AXOs in situ during the breadmaking process. An enzymatic process for AXOs production has already been developed (www.fugeia.be). Furthermore, extensive ball milling was shown to degrade arabinoxylans, offering tentative new possibilities for AXOs design.

A major feature of AXOs is that, in the colon, they are fermented to short chain fatty acids in general and butyric acid in particular. Butyric acid is important for the large intestinal mucosa cells. Arabinoxylan and AXOs are also known to be bifidogenic, ie they promote the growth of Bifidobacterium in the gut. The potential antioxidant power of AXOS deserves further studies.


Story Source:

The above story is based on materials provided by VTT Technical Research Centre of Finland. Note: Materials may be edited for content and length.


Journal References:

  1. Katrien Swennen, Christophe M Courtin, Geert CJE Lindemans, Jan A Delcour. Large-scale production and characterisation of wheat bran arabinoxylooligosaccharides. Journal of the Science of Food and Agriculture, 2006; 86 (11): 1722 DOI: 10.1002/jsfa.2470
  2. V. Eeckhaut, F. Van Immerseel, J. Dewulf, F. Pasmans, F. Haesebrouck, R. Ducatelle, C. M. Courtin, J. A. Delcour, W. F. Broekaert. Arabinoxylooligosaccharides from Wheat Bran Inhibit Salmonella Colonization in Broiler Chickens. Poultry Science, 2008; 87 (11): 2329 DOI: 10.3382/ps.2008-00193
  3. Christophe M. Courtin, Katrien Swennen, Priscilla Verjans, Jan A. Delcour. Heat and pH stability of prebiotic arabinoxylooligosaccharides, xylooligosaccharides and fructooligosaccharides. Food Chemistry, 2009; 112 (4): 831 DOI: 10.1016/j.foodchem.2008.06.039

Cite This Page:

VTT Technical Research Centre of Finland. "Engineering wheat arabinoxylan for new applications." ScienceDaily. ScienceDaily, 5 May 2010. <www.sciencedaily.com/releases/2010/05/100505091923.htm>.
VTT Technical Research Centre of Finland. (2010, May 5). Engineering wheat arabinoxylan for new applications. ScienceDaily. Retrieved April 20, 2014 from www.sciencedaily.com/releases/2010/05/100505091923.htm
VTT Technical Research Centre of Finland. "Engineering wheat arabinoxylan for new applications." ScienceDaily. www.sciencedaily.com/releases/2010/05/100505091923.htm (accessed April 20, 2014).

Share This



More Plants & Animals News

Sunday, April 20, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Vermont Goat Meat Gives Refugees Taste of Home

Vermont Goat Meat Gives Refugees Taste of Home

AP (Apr. 18, 2014) Dairy farmers and ethnic groups in Vermont are both benefiting from a unique collaborative effort that's feeding a growing need for fresh and affordable goat meat. (April 18) Video provided by AP
Powered by NewsLook.com
Man Claims He Found Loch Ness Monster With... Apple Maps?

Man Claims He Found Loch Ness Monster With... Apple Maps?

Newsy (Apr. 18, 2014) Andy Dixon showed the Daily Mail a screenshot of what he believes to be the mythical beast swimming just below the lake's surface. Video provided by Newsy
Powered by NewsLook.com
First Ever 'Female Penis' Discovered In Animal Kingdom

First Ever 'Female Penis' Discovered In Animal Kingdom

Newsy (Apr. 18, 2014) Not only are these newly discovered bugs' sex organs reversed, but they also mate for up to 70 hours. Video provided by Newsy
Powered by NewsLook.com
Little Progress Made In Fighting Food Poisoning, CDC Says

Little Progress Made In Fighting Food Poisoning, CDC Says

Newsy (Apr. 18, 2014) A new report shows rates of two foodborne infections increased in the U.S. in recent years, while salmonella actually dropped 9 percent. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins