A team in South Korea say they have cracked how to grow beef muscle and fat cells inside grains of rice.
Scientists have created a new type of hybrid food - a "meaty" rice that they say could offer an affordable and eco-friendly source of protein.The rice was first coated in fish gelatine to help the beef cells latch on, and the grains were left in a petri dish to culture for up to 11 days.
And, compared to regular beef, it has a smaller carbon footprint, since the production method eliminates the need to raise and farm lots of animals. Researcher Sohyeon Park explained: "We usually obtain the protein we need from livestock, but livestock production consumes a lot of resources and water and releases a lot of greenhouse gas.She said: "I didn't expect the cells to grow so well in the rice. Now I see a world of possibilities for this grain-based hybrid food."Rice appears to provide a scaffold or structure for the meat cells to grow in, and also gives them nutrients.
"While data on cost and climate impact look very positive, a critical test is around public appetite for these sorts of lab-developed foods," he said.
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