Scientist trying to grow hamburger from stem cells
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If you're concerned about the ethics of livestock production but don't want to become a vegetarian, consider this: It may be possible to grow meat in a petri dish.
Dr. Mark Post, professor of vascular physiology at the University of Maastricht in the Netherlands, is working on creating meat from bovine stem cells.
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The color is pinkish-yellowish, and Post and colleagues would like to make it look more appetizing in a natural way. Meat in typical hamburgers gets its color partly from blood. One way to make the stem-cell meat more authentic-looking is to use caffeine to coerce the cells to produce more myoglobin, a type of protein that carries iron and oxygen.
Apart from the "meat," scientists need to grow fat separately, for the juiciness and taste of the final product.
More here: One stem cell burger: $330,000 – Light Years - CNN.com Blogs
