Chocolate generates electrical power

University of Birmingham microbiologists have found a bacterium that excretes electricity-generating hydrogen when fed sugar, and have made electricity from waste chocolate headed for the landfill:

The team fed Escherichia coli bacteria diluted caramel and nougat waste. The bacteria consumed the sugar and produced hydrogen, which they make with the enzyme hydrogenase, and organic acids. The researchers then used this hydrogen to power a fuel cell, which generated enough electricity to drive a small fan. The process could provide a use for chocolate waste that would otherwise end up in a landfill.

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