All-oat, all-barley breads ahead? Maybe!
Subject: Bread (Research)
Oats (Research)
Oats (Nutritional aspects)
Author: Wood, Marcia
Pub Date: 02/01/2010
Publication: Name: Agricultural Research Publisher: U.S. Government Printing Office Audience: Academic; General Format: Magazine/Journal Subject: Agricultural industry; Biotechnology industry; Business Copyright: COPYRIGHT 2010 U.S. Government Printing Office ISSN: 0002-161X
Issue: Date: Feb, 2010 Source Volume: 58 Source Issue: 2
Topic: Event Code: 310 Science & research
Product: Product Code: 2051100 Bread; 0119400 Oats NAICS Code: 311812 Commercial Bakeries; 11119 Other Grain Farming SIC Code: 2051 Bread, cake, and related products; 0119 Cash grains, not elsewhere classified
Geographic: Geographic Scope: United States Geographic Code: 1USA United States
Accession Number: 242015822
Full Text: New interest in tasty, all-oat or all-barley breads might be sparked by the laboratory experiments now being conducted by chemist Wallace Yokoyama and postdoctoral nutritionist Hyunsook Kim. These delicious, healthful breads could appear on bakery or supermarket shelves that today are dominated by wheat flour-based loaves, yet would provide a different array of vitamins, antioxidants, fiber, protein, and other components that "aren't present in whole-wheat breads," says Yokoyama.

"The large variety of multigrain loaves currently available in U.S. supermarkets and bakeries suggests that people have a growing interest in trying new kinds of whole-grain breads," says Kim. Both scientists are with the ARS Western Regional Research Center in Albany, California, near San Francisco.

In preliminary experiments, Yokoyama, Kim, and colleagues used a commercially available, plant-derived fiber known as HPMC (short for hydroxypropyl methylcellulose) as a substitute for the gluten that's present in wheat but lacking in other grains. Gluten nimbly traps the airy bubbles formed by yeast, lifting doughs and yielding high, attractive, nicely textured loaves.

But HPMC performs that essential biochemical chore, too. That was shown many years ago in research, with rice, conducted by now-retired Albany scientist Maura M. Bean.

For their tests, Yokoyama and Kim fed laboratory hamsters a high-fat diet and oat, barley, and wheat breads with HPMC added. They found that the experimental breads had cholesterol-lowering effects.

The HPMC that the scientists are investigating is derived from a plant source proprietary to manufacturer Dow Wolff Cellulosics of Midland, Michigan. Though this HPMC is widely used in familiar foods--as a thickener, for instance--its cholesterol-lowering properties as an ingredient in whole-grain breads haven't been widely studied, says Yokoyama.

The Albany studies may ease oats and barley into the supermarket and bakery spotlight, giving these venerable grains a larger role in our meals and snacks--and our health.--By Marcia Wood, ARS.

Wallace H. Yokoyama and Hyunsook Kim are with the USDA-ARS Western Regional Research Center, 800 Buchanan St., Albany, CA 94710; (510) 559-5695 (Yokoyama), (510) 559-5755 (Kim),, hyunsook.

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