Researchers In San Diego Are Developing 'Space Guacamole' For Astronauts

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Researchers In San Diego Are Developing 'Space Guacamole' For Astronauts
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Kevin Tidmarsh is Weekend Edition's Associate Producer. Kevin started out in audio making an independent history podcast at Pomona College before going on to work for NPR's Morning Edition, KCRW and S

LAist is part of Southern California Public Radio, a member-supported public media network. For the latest national news from NPR and our live radio broadcast, visitJing Zhao, Cristal Zuniga and Changqi Liu are the lead researchers on San Diego State University's NASA-funded "space guacamole" research project.In these challenging times, the need for reliable local reporting has never been greater. Put a value on the impact of our year-round coverage.

“It’s a dry, kind of like an instant-mix guacamole, so we have to make sure that the color, the texture, the flavor after you reconstitute it are still good,” said Changqi Liu, a food science professor at SDSU.The algae being used can grow in space and they’re rich in nutrients, which are in short supply

Currently, the researchers are considering a few different algae for their final recipe based on their color and taste profiles. Some of the algae taste more like seaweed, with an umami-forward flavor, while others have a distinct fishy or bitter aftertaste that may taste jarring in guacamole, according to the researchers.Determining which algae to use is where SDSU biologist Cristal Zuniga’s research comes in.

“This is the first time our team worked with space food,” said SDSU food scientist Jing Zhao. “But in general, they won't be able to carry a lot of food items into space, so lightweight would be a requirement.”

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