Soybean Breeding Reaching
The Desired Components

 

by Kelly Mescher


Breeding soybeans for increased quality, higher protein, oil or sugar content could mean a better end product for consumers. It may also mean increased demand for specific soybean varieties.

Checkoff-funded research at Iowa State University (ISU) is providing the soyfoods industry with many specific end-use varieties. Dr. Walter Fehr, professor of plant breeding at ISU, has developed 63 unique soybean varieties that are currently being used in soy-based foods or for production of oils that are healthier than those we currently consume.

“Every end-user has different needs,” Fehr says. “Some of the beans we breed are specific for making tofu, while other varieties are developed for use as soy protein additives and have less of the inherent beany flavor.”

Checkoff Dollars Working
One of the varieties Fehr has produced using checkoff dollars is grown by American Natural Soy Processors, based in Cherokee, Iowa. Mark Schuett, farmer-owner, says the variety they grow produces 1 percent linolenic soybean oil.

“The 1 percent linolenic oil may last longer and may be much more stable than regular soybean oil, therefore, hydrogenation may not be required to stabilize it,” Schuett says. “Hydrogenated oil contains trans-fatty acids, which tests show may not be good for the human body. This particular oil could be better for human consumption, and provide another market for producers.”

The 1 percent linolenic oils may be increasingly desired by food manufacturers for production, Schuett says, since the U.S. government may require foods containing transfatty acids to be labeled as a potential health concern.

Breeding Varieties for Specific Products
John Schillinger, Ph.D., CEO of Heartland Fields, LLC, a Des Moines-based company that specializes in soyfoods, says products will continue to hit supermarket shelves that not only taste great, but include the many positive health benefits of soy.

“Soy is an excellent protein source,” Schillinger says. “And consumers are aware of the health benefits as well, especially since the FDA has recommended the consumption of 25 grams of soy protein per day. Since a large variety of foods has been incorporated with soy, the health benefits can be included in any meal.”

Schillinger tests many different varieties, looking for traits to enhance the flavor and nutritional value.

“One variety has a high amount of protein, which is used in soymilks that sell well in Australia and New Zealand,” Schillinger explains. “Their government requires certain levels of protein in soymilks, and this variety’s protein content meets that standard.”

Soy flour is made from another variety with the trait for a better puffing action. “Your foods won’t go flat. It can be used in larger amounts in things like pancakes, cookies and cakes, and they will rise and fluff up.”

Meeting Consumer Demand

The soyfoods market is increasing by 20 percent annually, providing soybean producers with a larger value-added market. Checkoff-funded research for specialty trait soybeans must continue in order to satisfy and increase consumer demand.