Sago-type palms were major plant food prior to rice cultivation in China
|This image shows modern starch grains from sago palms and ancient phytolith and starch|
grains recovered from Neolithic tools [Credit: Xiaoyan Yang]
In this study, researchers analyzed starch granules recovered from Neolithic stone tools used approximately 3,350-2,470 BC, and found these to resemble starches typically found in sago-type palms. They found that people at this time also likely relied on bananas, acorns and freshwater roots and tubers as important plant foods prior to the cultivation of rice.
Source: Public Library of Science [May 08, 2013]