【摘 要】
：
黄原胶是由某些黄单胞菌(Xanthmonas spp.)产生的一种微生物胞外多糖,可广泛应用于多个行业.研究从土样中筛选分离到52株放线菌菌株,其中可降解黄原胶的有25株,筛选其中降解
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黄原胶是由某些黄单胞菌(Xanthmonas spp.)产生的一种微生物胞外多糖,可广泛应用于多个行业.研究从土样中筛选分离到52株放线菌菌株,其中可降解黄原胶的有25株,筛选其中降解作用强的5株进行不同时间的紫外诱变,提高其降解黄原胶的活性,最终选育到5株可高效降解黄原胶的放线菌突变菌株,其摇瓶发酵液完全降解黄原胶的时间由出发菌株的12 d缩短到8 d,并初步确定了菌株的摇瓶发酵条件.
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