世界各国栲胶工业目前主要发展趋势之一,是选择适当的鞣料植物,大力建立原料基地,使原料供应尽量做到单纯、稳定,从根本上提高栲胶产量和质量,降低成本。在热带和亚热带地区,栲胶原料基地的树种选择,普遍趋向于发展荆树为主。由于荆树生长快,树皮单宁含量高,栲 At present, one of the major trends in the development of tannin in the world is to select the appropriate tannin plants and vigorously establish a raw material base so as to make the raw material supply as simple and stable as possible, fundamentally improve tannin yield and quality and reduce costs. In the tropics and subtropics, the choice of tree species at the base of the gum base material tends to favor the development of the Jing tree. Due to the rapid growth of the Wattle tree, bark tannin content is high, 栲