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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.
In the new episode, Rizvi explains that he looked for a way to avoid that loss and enrich rice with protein and other nutrients during the puffing process. The scientists 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."
Made palatable only by the addition of sugar and salt.
Did you know, one ounce of adult cereal (like Special K or Corn Flakes or Wheaties) contains more salt than an ounce of potato chips and more sugar than an ounce of Coca Cola?
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We are talking about *rice* here ... but now it is *puffed* !
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