The highly yielding strain J-12 was screened from Xanthomonas campestris by plate and shake flask culture experiments .

• 通过平板初筛、摇瓶发酵复筛，得到高产菌株J-12。在此基础上，采用单因素实验探讨了碳源、无机盐、柠檬酸和接种量对黄原胶产率和发酵液粘度的影响。