SDSU food scientist Padu Krishnan said it is one example of the ways in which distillers dried grains with solubles, or DDGS, can help improve human nutrition worldwide. DDGS is produced as a co-product when processing corn into ethanol, so corn producers from the American Midwest and elsewhere could tap a vast new market if manufacturers begin using it to fortify products in human diets.
Krishnan and his student, Sowmya Arra, worked with Kurt Rosentrater of the USDA Agricultural Research Service’s North Central Agricultural Research Laboratory on the project. In lab studies they found that using DDGS to make up 10 percent of the dough in chapathi, an Asian whole wheat unleavened bread eaten in South Asia and East Africa, boosted the fiber from 2.9 percent to 7.8 percent. Using 20 percent DDGS in the dough increased the fiber to 10.3 percent.
Similarly, protein increased from 10.5 to 12.9 percent when they used DDGS to make up 10 percent of the dough in chapathi. Using 20 percent DDGS increased the protein to 15.3 percent.
In the United States, DDGS is most often fed to livestock. But Krishnan, a cereal chemist, has been studying and writing about the possibility of using DDGS in human diets since the early 1990s. Especially now with new state-of-the-art ethanol plants coming online in recent years, Krishnan said, the ethanol industry is well poised to make food-grade DDGS.
DDGS is ideal for including in human diets because it is rich in dietary fiber, at 40 percent, and also in protein, at 36.8 percent.
Krishnan said the results from the South Dakota State lab studies were enough to catch the attention of the food industry because it suggests a strategy to bolster diets with a bland but highly nutritious ingredient that won’t interfere with the taste of foods. Chapathies and naan, another kind of flatbread, made with 20 percent DDG were well accepted by a taste panel.
Krishnan said it’s one example of how SDSU’s Department of Nutrition, Food Science and Hospitality is exploring the use of locally-produced, South Dakota products such as corn to meet nutritional demands worldwide.
Adding DDGS to the dough did make chapathies significantly darker, particularly at the 20 percent substitution, Krishnan noted.
“However, the use of South Dakota white wheats such as ‘Alice’ and ‘Wendy’ in the formulation gives us some leeway when color is the aesthetic criterion,” Krishnan said.
The shelf life of chapathies at room temperature was one week without preservatives and refrigeration, he added.
Krishnan used flour from white winter wheat developed by South Dakota State University plant breeders in his experiments. He used DDGS supplied by VeraSun Energy, and dough additives from MGP Ingredients Inc. of Atchison, Kan.
The project has received support from the South Dakota Agricultural Experiment Station, the North Central Agricultural Research Laboratory of the U.S. Department of Agriculture’s Agricultural Research Service and the South Dakota Wheat Commission.About South Dakota State University
The work of the university is carried out on a residential campus in Brookings, at sites in Sioux Falls, Pierre and Rapid City, and through Cooperative Extension offices and Agricultural Experiment Station research sites across the state.
Jeanne Jones Manzer | Newswise Science News
Multi-institutional collaboration uncovers how molecular machines assemble
02.12.2016 | Salk Institute
Fertilized egg cells trigger and monitor loss of sperm’s epigenetic memory
02.12.2016 | IMBA - Institut für Molekulare Biotechnologie der Österreichischen Akademie der Wissenschaften GmbH
A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.
Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...
In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.
“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...
The Max Planck Institute for Physics (MPP) is opening up a new research field. A workshop from November 21 - 22, 2016 will mark the start of activities for an innovative axion experiment. Axions are still only purely hypothetical particles. Their detection could solve two fundamental problems in particle physics: What dark matter consists of and why it has not yet been possible to directly observe a CP violation for the strong interaction.
The “MADMAX” project is the MPP’s commitment to axion research. Axions are so far only a theoretical prediction and are difficult to detect: on the one hand,...
Broadband rotational spectroscopy unravels structural reshaping of isolated molecules in the gas phase to accommodate water
In two recent publications in the Journal of Chemical Physics and in the Journal of Physical Chemistry Letters, researchers around Melanie Schnell from the Max...
The efficiency of power electronic systems is not solely dependent on electrical efficiency but also on weight, for example, in mobile systems. When the weight of relevant components and devices in airplanes, for instance, is reduced, fuel savings can be achieved and correspondingly greenhouse gas emissions decreased. New materials and components based on gallium nitride (GaN) can help to reduce weight and increase the efficiency. With these new materials, power electronic switches can be operated at higher switching frequency, resulting in higher power density and lower material costs.
Researchers at the Fraunhofer Institute for Solar Energy Systems ISE together with partners have investigated how these materials can be used to make power...
16.11.2016 | Event News
01.11.2016 | Event News
14.10.2016 | Event News
02.12.2016 | Medical Engineering
02.12.2016 | Agricultural and Forestry Science
02.12.2016 | Physics and Astronomy