黄原胶,又名汉生胶,是一种清黄色至淡棕色粉末,稍带臭味,其易溶于冷或热水中,溶液呈中性。黄原胶是国外70年代发展起来的一种新型生物发酵化工产品。其制法是将含有葡萄糖和无机盐的培养基调整至pH6.0～7.0,加入1％～5％的野油菜黄单胞菌接种体,培养50～100小时,杀菌后加入异丙醇使其沉淀,再用异丙醇精制后干燥,粉碎而得成品。 Xanthan gum, also known as xanthan gum, is a clear yellow to light brown powder with a slight odor. It is easily soluble in cold or hot water and the solution is neutral. Xanthan gum is a new type of biological fermentation chemical product developed abroad in the 1970s. The method comprises the following steps: adjusting the medium containing glucose and inorganic salt to pH 6.0-7.0, adding 1%-5% of Xanthomonas campestris inoculum, culturing for 50-100 hours, adding isopropyl alcohol after sterilization The precipitate, then refined with isopropyl alcohol, dried and crushed to obtain the finished product.