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A new, super-nutritious puffed rice for breakfast cereals and snacks

Date:
December 19, 2012
Source:
American Chemical Society
Summary:
A new process for blowing up grains of rice produces a super-nutritious form of puffed rice, with three times more protein and a rich endowment of other nutrients that make it ideal for breakfast cereals, snack foods and nutrient bars for school lunch programs, scientists are reporting.

A new way to blow up grains could make a form of puffed rice loaded with protein and other nutrients.
Credit: American Chemical Society

A new process for blowing up grains of rice produces a super-nutritious form of puffed rice, with three times more protein and a rich endowment of other nutrients that make it ideal for breakfast cereals, snack foods and nutrient bars for school lunch programs, scientists are reporting.

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Their study appears in ACS' Journal of Agricultural and Food Chemistry.

Syed S.H. Rizvi and colleagues explain that commercial puffed rice is made by steam extrusion. An extruder squeezes rice flour mixed with water through a narrow opening at high temperature and pressure. On exiting the nozzle, the rice puffs up as steam expands and escapes. The process, however, can destroy heat-sensitive nutrients. The scientists looked for a way to avoid that loss and enrich rice with protein and other nutrients during the puffing process. They turned to a process that uses supercritical carbon dioxide, which has been used for making decaffeinated coffee and in other applications.

The scientists describe using the process to make puffed rice with three times more protein and eight times more dietary fiber than commercial puffed rice. It also contains calcium, iron, zinc and other nutrients that conventional puffed rice lacks. Their puffed rice was crispier than commercial products, giving it a better taste and crunch.

The new rice is "ideally suited for consumption as breakfast cereals, snack food and as part of nutrition bars for school lunch programs," the report states. "The balanced nutritional profile and use of staple crop byproducts such as broken rice makes these expanded crisps unique to the marketplace."


Story Source:

The above story is based on materials provided by American Chemical Society. Note: Materials may be edited for content and length.


Journal Reference:

  1. Ilankovan Paraman, Michael E. Wagner, Syed S. H. Rizvi. Micronutrient and Protein-Fortified Whole Grain Puffed Rice Made by Supercritical Fluid Extrusion. Journal of Agricultural and Food Chemistry, 2012; 60 (44): 11188 DOI: 10.1021/jf3034804

Cite This Page:

American Chemical Society. "A new, super-nutritious puffed rice for breakfast cereals and snacks." ScienceDaily. ScienceDaily, 19 December 2012. <www.sciencedaily.com/releases/2012/12/121219133600.htm>.
American Chemical Society. (2012, December 19). A new, super-nutritious puffed rice for breakfast cereals and snacks. ScienceDaily. Retrieved November 26, 2014 from www.sciencedaily.com/releases/2012/12/121219133600.htm
American Chemical Society. "A new, super-nutritious puffed rice for breakfast cereals and snacks." ScienceDaily. www.sciencedaily.com/releases/2012/12/121219133600.htm (accessed November 26, 2014).

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