Sea pineapples are a delicacy in Japan and the Tohoku region is renowned for its extensive sea pineapple industry. Soon they might not only be fueling our appetites, but helping power our future too.

Sea pineapples, an edible ascidian, are a delicacy in Japan. The Tohoku region is famed for its sea pineapple production - known as hoya in Japanese. Now, a research group has established a new use ...