The AGAR industry started in Japan over 400 years ago in mountainous regions where, in cold winters, AGAR would set into a gel.

琼脂业开始在日本400年多前在山区的地方，在寒冷的冬天，将设置成琼脂凝胶。

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Extracted from a type of red algae (of the Gelidium and Gracilaria genera), AGAR is a gelling agent used in Japan since the 15th century.

提取的一种红藻(的Gelidium和江蓠属)，琼脂是一种胶凝剂在日本使用，因为15世纪。

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Toshiyuki Nakagaki of the Bio-Mimetic Control Research Centre, Nagoya, Japan, placed pieces of the slime mould Physarum polycephalum in an agar gel maze comprising four possible routes.

BBC: When slime is not so thick