Abstract
A search for the correlation between Japanese and Chinese food cultures identified the production of natto, a non-salted and fermented soybean product, in China. Natto is prepared by Jingpo-zu in Dehong Thai-zu Jingpo-zu Province of Yunnan in China. Boiled soybean covered with bamboo grass, straw or loquat leaves is left to ferment in a bamboo basket. After fermentation, it is eaten with pepper, or salt and pepper is added to produce a seasoning like Japanese miso. Salted natto is also dried for storage as drynatto, and some natto is used to prepare Shui-douchi a kind of supplementary food. Our search indicates that the nattoline from Nepal via Bhutan and Myanmar that has been presented by Sasaki can be extended to Yunnan in China.