Featured Research

from universities, journals, and other organizations

Improved gluten-free bread

Date:
May 26, 2010
Source:
Teagasc
Summary:
Researchers in Ireland are producing tasty, nutritious gluten-free breads for coeliac disease sufferers. The research focused on using the so-called ‘pseudocereals’ amaranth, quinoa and buckwheat to replace wheat in bread formulations. These cereals are gluten-free, and are also rich in nutrients; therefore, their incorporation in the gluten-free diet could not only add variety but also improve nutritional quality.

The bread loaves (clockwise from top left): 1 = gluten-free control, 2 = quinoa, 3 = amaranth, 4= buckwheat.
Credit: Image courtesy of Teagasc

Researchers at Teagasc Food Research Ashtown in Ireland are producing tasty, nutritious gluten-free breads for coeliac disease sufferers.

The research focused on using the so-called 'pseudocereals' amaranth, quinoa and buckwheat to replace wheat in bread formulations. These cereals are gluten-free, and are also rich in nutrients; therefore, their incorporation in the gluten-free diet could not only add variety but also improve nutritional quality.

"Greater public awareness and improved diagnostic procedures have combined to highlight the prevalence of coeliac disease and gluten intolerance in the general population, which is estimated to affect 1 per cent of the population. The only accepted treatment for coeliac disease is a strict, life-long elimination of gluten from the diet," explains Dr Eimear Gallagher, Teagasc Food Research Ashtown, who is leading the research project.

Many widely consumed staples, such as bread and pasta, are made using gluten-containing grains such as wheat, which must be avoided by coeliac patients. Although gluten-free alternatives are readily available in the market, these products are often characterised by a crumbly, brittle texture, and are perceived as being of inferior quality compared to the wheat products they are intended to replace. In addition to quality defects, gluten-free foods are also characterised by an inferior nutritional quality. They have been reported to contain lower levels of essential nutrients such as B vitamins, iron and fibre, than are contained in wheat products. This is mainly due to the fact that gluten-free products are generally formulated with starches and refined flours, and are not usually fortified.

Research at Teagasc Food Research Ashtown has addressed some of the nutritional needs of coeliacs by formulating palatable, gluten-free breads with enhanced nutritional properties. It has focused on using the so-called 'pseudocereals' amaranth, quinoa and buckwheat to replace wheat in bread formulations. These cereals are gluten-free, and are also rich in nutrients; therefore, their incorporation in the gluten-free diet could not only add variety but also improve nutritional quality.

"Other characteristics of these seeds, such as their high protein, fibre and mineral content, as well as the presence of many bioactive components (compounds with beneficial effects on the body), make them attractive alternatives to traditional gluten-free ingredients (such as rice, potato and corn flours/starches) in the production of high quality, healthy gluten-free product," explains Dr Gallagher.

Tasty nutritious gluten-free bread

"All pseudocereal-containing gluten-free breads had a significantly softer crumb in comparison with the gluten-free control. Nutritional studies revealed that gluten-free breads containing pseudocereals had significantly higher levels of protein and dietary fibre in comparison with the gluten-free control. The nutritional value of these breads was also in line with the existing nutritional recommendations for coeliac diets and coeliac products. Also, all of the pseudocereal breads showed significantly higher antioxidant activity and polyphenol content compared with the gluten-free control," explains Dr Gallagher. Antioxidants prevent food oxidation during cooking and storage, and can also protect the body from degenerative diseases.

Dairy as gluten-free ingredients

Teagasc food researchers working at Ashtown and Moorepark are investigating the conditions required to produce a dairy-based ingredient with properties similar to gluten in a gluten-free dough system. So far, the researchers have found that under optimum conditions of pH and calcium concentration, casein aggregates and forms a protein network capable of retaining gas in gluten-free dough, similar to wheat dough. This work is still in progress.

Benefits to industry

Dr Gallagher said that the ingredients, formulations and technologies that have been studied and developed in these projects have yielded novel information, which will help to provide the industry with healthy, viable alternatives to the more traditional approaches in gluten-free formulation and baking.


Story Source:

The above story is based on materials provided by Teagasc. Note: Materials may be edited for content and length.


Cite This Page:

Teagasc. "Improved gluten-free bread." ScienceDaily. ScienceDaily, 26 May 2010. <www.sciencedaily.com/releases/2010/05/100525090519.htm>.
Teagasc. (2010, May 26). Improved gluten-free bread. ScienceDaily. Retrieved October 22, 2014 from www.sciencedaily.com/releases/2010/05/100525090519.htm
Teagasc. "Improved gluten-free bread." ScienceDaily. www.sciencedaily.com/releases/2010/05/100525090519.htm (accessed October 22, 2014).

Share This



More Plants & Animals News

Wednesday, October 22, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Working Mother DIY: Pumpkin Pom-Pom

Working Mother DIY: Pumpkin Pom-Pom

Working Mother (Oct. 22, 2014) How to make a pumpkin pom-pom. Video provided by Working Mother
Powered by NewsLook.com
San Diego Zoo's White Rhinos Provide Hope for the Critically Endangered Species

San Diego Zoo's White Rhinos Provide Hope for the Critically Endangered Species

Reuters - Light News Video Online (Oct. 22, 2014) The pair of rare white northern rhinos bring hope for their species as only six remain in the world. Elly Park reports. Video provided by Reuters
Powered by NewsLook.com
Raw: Bear Cub Strolls Through Oregon Drug Store

Raw: Bear Cub Strolls Through Oregon Drug Store

AP (Oct. 22, 2014) Shoppers at an Oregon drug store were surprised by a bear cub scurrying down the aisles this past weekend. (Oct. 22) Video provided by AP
Powered by NewsLook.com
Family Pleads for Pet Pig to Stay at Home

Family Pleads for Pet Pig to Stay at Home

AP (Oct. 22, 2014) The Johnson family lost their battle with the Chesterfield County, Virginia Planning Commission to allow Tucker, their pet pig, to stay in their home, but refuse to let the board keep Tucker away. (Oct. 22) Video provided by AP
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:

Strange & Offbeat Stories


Plants & Animals

Earth & Climate

Fossils & Ruins

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