New Test Improves Detection of Starch in Gluten-Free Products

by Shirley Johanna on  October 13, 2016 at 7:03 PM Diet & Nutrition News
RSS Email Print This Page Comment
Font : A-A+

Grocery stores have a wide range of gluten-free food products for people with celiac disease, wheat allergies or gluten sensitivity. But knowing for sure whether products are safe for consumption can be more complicated than just reading the label.
New Test Improves Detection of Starch in Gluten-Free Products
New Test Improves Detection of Starch in Gluten-Free Products

Researchers have developed a more reliable way for manufacturers to detect gluten in purified wheat starch, a common ingredient in foods labeled gluten-free.

Gluten is a mixture of proteins in the starch of wheat, rye and barley grains that can be broken down into two subgroups: prolamins (wheat gliadins) and glutelins (wheat glutenins).

When people with celiac disease, wheat allergies or gluten sensitivity consume these proteins, they can experience a range of symptoms from diarrhea and vomiting to fatigue and migraines. Current testing for gluten in foods involves running an enzyme-linked immunosorbent assay, or ELISA. Although the method determines gliadin levels accurately, its measurements of glutenins are less reliable. Katharina Anne Scherf and colleagues wanted to find a more comprehensive approach.

The researchers combined gel-permeation high-performance liquid chromatography with fluorescence detection to develop a sensitive technique that can detect both gliadins and glutenins in purified wheat starch. The new method identified higher amounts of gluten in 19 out of 26 starch samples than the ELISA analyses did. And, according to the new test, 12 samples that had been labeled gluten-free contained between 25.6 and 69 milligrams of gluten per kilogram of starch.

The U.S. Food and Drug Administration and the United Nations' Food and Agriculture Organization have set the maximum limit for gluten in products labeled gluten-free at 20 mg/kg.

The study is published in ACS' Journal of Agricultural and Food Chemistry.

Source: Eurekalert

Post a Comment

Comments should be on the topic and should not be abusive. The editorial team reserves the right to review and moderate the comments posted on the site.
Notify me when reply is posted
I agree to the terms and conditions

More News on:

Varicocele Testicle Pain - Symptom Evaluation Health Benefits of Arrowroot Health Benefits of Pearl Millet 

News A - Z

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

News Search

Medindia Newsletters

Subscribe to our Free Newsletters!

Terms & Conditions and Privacy Policy.

Advertisement
Advertisement

Stay Connected

  • Available on the Android Market
  • Available on the App Store

Facebook

News Category

News Archive