Jump to content

Important Information

This site places cookies on your device (Cookie settings). Continued use is acceptance of our Terms of Use, and Privacy Policy.

  • Sign Up
  • Join our community!

    Do you have questions about celiac disease or the gluten-free diet?

  • Member Statistics

    84,943
    Total Members
    4,125
    Most Online
    Holspen
    Newest Member
    Holspen
    Joined
  • 0

    Could Sourdough Bread Help Conquer Wheat Sensitivity?


    Jefferson Adams
    • To determine if sourdough bread help conquer wheat sensitivity, the Alberta Wheat Commission (AWC) is funding research to see if the sourdough fermentation process can reduce or eliminate wheat components that trigger wheat sensitivity.

    Could Sourdough Bread Help Conquer Wheat Sensitivity?
    Image Caption: Image: CC-- aimee rivers

    Celiac.com 05/15/2018 - There is a good amount of anecdotal evidence that people with non-celiac gluten sensitivity can tolerate sourdough bread, but there is no good science to support such claims. To determine if sourdough bread help conquer wheat sensitivity, the Alberta Wheat Commission (AWC) is funding a team of researchers to see if the sourdough fermentation process can reduce or eliminate wheat components that trigger wheat sensitivity.

    The project will study the way the sourdough bread fermentation process breaks down proteins and carbohydrates in wheat flour.

    Chair of the AWC Research Committee, Terry Young, said new research suggests that wheat protein may not be the cause of gluten sensitivity in people without celiac disease. Longer fermentation, aka sourdough fermentation, is more common in Europe. Young says that reports indicate that “incidents of non-celiac sensitivity…are actually lower in Europe." He adds the current research will focus on the fermentation, but the future may include the development of wheat varieties for gluten sensitive individuals.

    The research will be led by food microbiologist at the University of Alberta, Dr. Michael Gänzle, who said the use of sourdough bread in industrial baking reduces ingredient costs and can improve the quality of bread as well.

    Dr. Gänzle wants to assess anecdotal claims that people with non-celiac wheat or gluten intolerance can tolerate sourdough bread. His team wants to “determine whether fermentation reduces or eliminates individual wheat components that are known or suspected to cause adverse effects.”

    The team readily admits that their project will not create products that are safe for people with celiac disease. They may, however, create products that are useful for people without celiac disease, but who are gluten sensitivity.

    The AWC is collaboratively funding the project with the Saskatchewan Wheat Development Commission, and the Minnesota Wheat Research Promotion Council, which will contribute $57,250, and $20,000, respectively. The research team will issue a report of its findings after the project is completed in 2021.

    Studies like this are important to shed light on the differences between celiac and non-celiac gluten sensitivity. Stay tuned for more developments in this exciting area of research.

    Source:

    0


    User Feedback

    Recommended Comments

    Guest gut job

    Posted

    I find it disturbing that wheat interest groups are funding this.  What will they do with the resulting data? I fear it will be skewed in favor of wheat promotion.

    Share this comment


    Link to comment
    Share on other sites


    Your content will need to be approved by a moderator

    Guest
    You are commenting as a guest. If you have an account, please sign in.
    Add a comment...

    ×   Pasted as rich text.   Paste as plain text instead

      Only 75 emoji are allowed.

    ×   Your link has been automatically embedded.   Display as a link instead

    ×   Your previous content has been restored.   Clear editor

    ×   You cannot paste images directly. Upload or insert images from URL.


  • About Me

    Jefferson Adams earned his B.A. and M.F.A. at Arizona State University, and has authored more than 2,000 articles on celiac disease. His coursework includes studies in biology, anatomy, medicine, and science. He previously served as Health News Examiner for Examiner.com, and provided health and medical content for Sharecare.com.

    Jefferson has spoken about celiac disease to the media, including an appearance on the KQED radio show Forum, and is the editor of the book Dangerous Grains by James Braly, MD and Ron Hoggan, MA.

  • Related Articles

    Scott Adams
    Appl Environ Microbiol. 2004 Feb;70(2):1088-1096 Celiac.com 02/26/2004 - Please note that the sourdough bread used in this study is not your garden-variety sourdough bread, and as far as I know it is not commercially available. Even though this study had very promising results, it was conducted on a relatively small number of people, and larger studies need to be carried out before reaching any conclusions about the long-term safety of celiacs consuming this type of sourdough bread. -Scott Adams
    Researchers in Europe conducted a novel study which utilized a highly specialized sourdough lactobacilli containing peptidases that have the ability to hydrolyze Pro-rich peptides, including the 33-mer peptide, which is the main culprit in the immune response associated with celiac disease. The sourdough bread in the study was made from a dough mixture that contained 30% wheat flour and other nontoxic flours including oat, millet, and buckwheat, which was then started with the specialized lactobacilli. After 24 hours of fermentation all 33-mer peptides and low-molecular-mass, alcohol-soluble polypeptides were almost totally hydrolyzed.
    For the next step in the study the researchers extracted proteins fro the sourdough and used them to produce a "peptic-tryptic digest" for in vitro agglutination tests on human K 562 subclone cell. The agglutinating activity of the sourdough proteins was found to be 250 times higher that that of normal bakers-yeast or lactobacilli started breads.
    A double blind test was then conducted in which 17 celiac disease patients were given 2 grams of gluten-containing bread started with bakers yeast or lactobacilli. Thirteen of them showed distinct, negative changes in their intestinal permeability after eating the bread, and 4 of them did not show any negative effects. The specially prepared sourdough bread was then given to all 17 patients and none of them had intestinal permeability reactions that differed from their normal baseline values.
    The researchers conclude: "These results showed that a bread biotechnology that uses selected lactobacilli, nontoxic flours, and a long fermentation time is a novel tool for decreasing the level of gluten intolerance in humans."

    Jefferson Adams
    Celiac.com 04/19/2012 - A team of researchers examined the effect of corn, rice and amaranth gluten-free sourdoughs on the release of nitric oxide (NO) and synthesis of pro-inflammatory cytokines by duodenal mucosa biopsies of eight celiac disease patients.
    The research team included Maria Calasso, Olimpia Vincentini, Francesco Valitutti, Cristina Felli, Marco Gobbetti and Raffaella Di Cagno.
    The team used select lactic acid bacteria as starters for making corn, rice and amaranth sourdoughs. From these gluten-free sourdough matrices, they made chemically acidified doughs, without bacterial starters, and doughs started with baker’s yeast alone.
    They produced pepsin-trypsin (PT) digests from all sourdoughs and doughs, and used the results to the measure the recovery of biopsy specimens from eight celiac disease patients at diagnosis. They also measured the release of NO and the synthesis of pro-inflammatory cytokines interferon-γ (IFN-γ).
    They found that lactic acid bacteria acidified and grew well (ca. log 9.0 CFU/g) during fermentation, showing strong proteolysis on all gluten-free samples.
    They also found that duodenal biopsy specimens still released NO and IFN-γ when subjected to treatments with basal medium (control), PT-digest from chemically acidified doughs and PT-digest from doughs fermented with baker’s yeast alone.
    In fact, in every case, biopsy specimens treated with PT-digests from all gluten-free matrices with sourdough fermentation substantially reduced NO release and IFN-γ synthesis.
    From their results, the team concludes that sourdough fermentation might offer an easy and effective way to speed recovery from intestinal inflammation of celiac patients beginning a gluten-free diet.
    Source:

    EUROPEAN JOURNAL OF NUTRITION. DOI: 10.1007/s00394-012-0303-y

    Jefferson Adams
    Celiac.com 12/28/2012 - Sourdough bread is made by a long fermentation of dough using naturally occurring yeasts and lactobacilli. Compared with regular breads, sourdough usually has a sour taste due to the lactic acid produced by the lactobacilli.
    Sourdough fermentation helps improve bread quality by prolonging shelf life, increasing loaf volume, delaying staling, as well as by improving bread flavor and nutritional properties.
    However, sourdough isn't just good for making better bread. Recent studies show that sourdough fermentation can also speed gut healing in people with celiac disease at the start of a gluten-free diet.
    Over the past few years researchers have been experimenting with sourdough fermentation as a means for making traditional wheat bread safe for people with celiac disease. Recently, yet another study examined the safety of this process with great results.
    "While the study was small, it did show that individuals with celiac disease who ate specially prepared sourdough wheat bread over the course of 60 days experienced no ill effects." Obviously, larger and more detailed studies need to be carried out, but the early results are intriguing.
    In the meantime, sourdough bread made with gluten-free flours might be the best way for people with celiac disease and gluten-sensitivity to get the benefits of sourdough cultures, and to enjoy fresh, minimally processed bread.
    Of course, not everyone can bake their own sourdough bread. That's why I was happy to learn that more artisanal bread bakers are turning to baking their own delicious gluten-free sourdough to share with others.
    One of these small, artisanal bread makers is a local San Francisco baker named Sadie Scheffer, who runs a company called BreadSRSLY. Sadie bakes delicious long-fermented sourdough bread and other products, using gluten-free grains. She delivers most of her products by bicycle.
    Having sampled Sadie's bread, and I can say that it is some of the best sourdough bread I've tasted, gluten-free or not. It isdelicious, dense, and chewy sourdough bread that is perfect for toasting. The loaves are fermented for twelve hours before baking. Folks in San Francisco can find Sadie's delicious gluten-free sourdough bread at BiRite, Gluten Free Grocery and Other Avenues, and at breadsrsly.com.
    Until science establishes the safety of wheat-based sourdough for people with celiac disease, I think that long-fermented sourdough bread, made with gluten-free flour, represents the future of gluten-free bread for people with celiac disease and gluten-sensitivity.
    Here's a recipe for gluten-free sourdough starter.
    Other helpful links:
    Celiacs Can Say Yes To Sourdough Bread Study Finds Wheat-based Sourdough Bread Started with Selected Lactobacilli is Tolerated by Celiac Disease Patients Can Sourdough Fermentation Speed Intestinal Recovery in Celiac Patients at Start of Gluten-free Diet? Sourdough Bread Made from Wheat and Nontoxic Flours and Started with Selected Lactobacilli Is Tolerated in Celiac Sprue Patients The Art of Gluten-Free Sourdough Baking

    Jefferson Adams
    Celiac.com 12/27/2012 - Making sourdough 'starter' is the first step in the traditional fermentation process for sourdough bread. You begin the process by “growing” strains of lactobacillus bacteria and yeast together in what bakers call the 'starter.' When the 'starter' is added to flour, the organisms produce enzymes that break down the gluten protein in the flour in a process called 'hydrolysis.' Hydrolysis is the breakdown of larger particles into smaller ones, specifically amino acids.
    Some studies show that these amino acids are no longer toxic to individuals who are sensitive to gluten. Basically, these cultures partially digest the wheat or other grains; doing part of the stomach's job in advance part of the digestive process.
    When you add the gut healing benefits of lactobacillus, the result is bread that acts like medicine; delicious medicine, at that.
    Using sourdough starter to bake breads using gluten-free grains is an excellent way for people with celiac disease and gluten-intolerance to get the benefits of sourdough cultures and to enjoy delicious fresh bread.
    Here's a recipe for gluten-free sourdough starter that you can use to bake countless loaves of delicious gluten-free bread:
    Gluten-free Sourdough Starter
    Ingredients:
    1 cup water, 110 to 115 deg F
    2 1/4 teaspoons active dry yeast
    1 1/2 cups rice flour 
    Directions:
    Combine all ingredients in a 1-quart container. It will be thick.
    Cover loosely with plastic wrap or foil and let stand for one to three days in a warm place, stirring 2 or 3 times daily.
    The starter will rise and fall during the fermentation process.When it is ready to use, it will be bubbly and may have a layer of hooch, or liquid, on top of the starter, which can be stirred back in.
    Use the starter right away, or put it in refrigerator.
    You can easily replenish your starter by keeping at least one cup of finished aside. Add 1 cup water and 1 1/2 cup white rice flour. Cover loosely and let stand in a warm place for 12 hours, stirring once or twice. Use what you need, and refrigerate the rest. Replenish as needed.

  • Popular Contributors

×