gluten free aacc int 2009
TRANSCRIPT
The Gluten-Free (GF) Initiative
3 Friends, Multiple Disciplines and a Business
Wheat Gluten
Patent Background
Priority Date:This application claims the benefit of priority of U.S. Provisional Application Number 60/837,331 filed on August 11, 2006.
Claim 1:A composition for making a gluten-free product, comprising a gluten-free gas-retaining polymer, and a gluten-free setting polymer.
Example 2: Hydrocolloid Treatment
Optimization of Example 2 resulted in 4 gluten-free bread prototypes.
Optimized Bread
Overall L iking Product N Overall L iking
Sara Lee White Classic 21 6.81aWhole Foods Gluten Free 24 6.04ab
Cargill Gluten Free 32 7.09aKinnikinnick White Sandwich
25 5.28ab
Ener-G Tapioca Loaf- 26 3.19bCargill Gluten Free and Sara Lee White Classic scored significantly Higher in Overall Liking than Ener-G Tapioca.-
Bread Texture and Shelf LifeBread Chewiness vs. Time
0
200
400
600
800
1000
1200
0 2 4 6 8 10 12Age of Cargill GF Bread (Days)
Brea
d Ch
ewin
ess
Wonder Classic
Cargill GF Good Source of Fiber
Cargill GF Original
Pepperidge Farm Jewish Rye
GF Breadmaking Rules vs. ConventionalMade from a viscous batter that is high in water.
Mixing hydrates hydrocolloids, modified starches and emulsifiers, which thicken and hold the batter together.
Shorter proof times than normal because diffusion is faster in the batter and air cells are less stable.
Emulsifiers increase the stability of air cells.
The batter matrix retains air cells, but lacks strength and collapses if it contacts a solid surface.
Upon heating, yeast and chemical leavening and in turn expanding air cells yield ovenspring, which must occur quickly before the batter sets.
Film forming ingredients promote oven spring by improving batter strength and flexibility of the batter.
The batter sets as starch gelatinizes and proteins denature.Set-ability is highly dependent on plasticizer (sugar, water, etc.) content.
In the baked bread, hydrocolloids, starches and emulsifiers impart chewy and soft bread texture.
Flavors are added to the batter to enhance final bread flavor.Flavors compensate for gluten and the flavors that result from reactions between gluten and sugars.
Safety Threshold Level for Gluten
Maximum safe level of gluten for patients with celiac disease (CD)
<0.002% (<20 ppm)
The Gluten Test:
R-Biopharm RIDASCREEN® FAST Gliadin (ELISA kit)
Minimum detection level of 10 ppm gluten
Official AACC International Method?
Inadvertent gluten exposure is a pain point for patients.
Reduce gluten exposure in small intestine with oral therapy that acts in the stomach.
Glutamine specific cysteine proteaseProline specific prolyl endopeptidase
CD Pharmaceutical Therapy in Development
Inflammatory T-cell
Activation
TG2Gluten PQPQLPYPQ
PQQPFPQQP
PQPELPYPQ
PQQPFPEQP
GIProteases HLA-DQ2
Oral Enzymes