乌桕(Sapium Sebiferum Roxb),又名棬籽、木籽、蜡籽等,是大戟科(Euphorbiaceae)乌桕属的一种多年生木本油料植物,亦是我国特有的木本油料树种。在我国已有一千多年的栽培历史。早在六世纪后魏贾恩勰著的《齐民要术》里就有乌桕的记载;到二十世纪四十年代,中国乌桕越来越引起世界各国的注目,美国油协会研究证实,中国乌桕有很高的营养价值;英国科学家指出,中国桕脂有重要的食用价值;巴西市场上称中国 Sapium Sebiferum Roxb is also a perennial woody oil plant of the genus Euphorbiaceae and also a woody oilseed species unique to China. In our country has more than a thousand years of cultivation history. As early as the sixth century after Weijien Wei’s “Qi Min Yao Shu” there is a report of Uzbek; By the 1940s, China’s Uzbekistan increasingly attracted the attention of all countries in the world, the American Oil Association research confirmed that China Ujjain High nutritional value; British scientists pointed out that there is an important Chinese edible fat food value; the Brazilian market, said China