Coming up with a universally accepted method for analyzing total dietary fiber is like chasing a moving target, says Anitra Payne ([email protected]), Chemistry Supervisor, rtech Laboratories, Arden Hills, Minn. (www.rtechlabs.com).
“That’s because the definition of total dietary fiber has changed over the years, and it varies from source to source,” she explains. “The Association of Analytical Communities (AOAC)-approved method we use in our lab, Method 991.43, Total, Soluble, and Insoluble…