文献类型：期刊文献

中文题名：溶氧对黄原胶发酵的影响

英文题名：Effect of Dissolved Oxygen on Xanthan Gum Fermentation

作者：黄世发[1];陆仕灿[1];张在(音页)[1]

机构：[1]华东化工学院生化工程研究所

年份：1989

卷号：15

期号：4

起止页码：447

中文期刊名：华东化工学院学报

收录：国家哲学社会科学学术期刊数据库;Scopus;CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：黄原胶;杂多糖;发酵;溶解氧

外文关键词：polysaccharide; fermentation; dissolved oxygen; xanthomonas; xanthan gum

摘要：黄原胶是野油菜黄单孢菌分泌的胞外多糖,可用淀粉或葡萄糖为碳源发酵生产。本文着重以淀粉为碳源研究不同的溶氧水平对多糖的影响。试验结果表明:溶氧水平高于饱和度的20%对多糖发酵影响不大,低于20%时菌的生长受影响。溶氧水平为饱和度的25%,菌体生长最佳。
The xanthan gum is the extracellular polysaccharide secreted by xanthomonas campestris from wild rape. It can be produced by fermentation with starch or glucose as the carbon source. Polysaccharide fermentation with starch as the carbon source at different levels of dissolved oxygen has been investigated. Experimental results showed that the dissolved oxygen has little influence on the fermentation of polysaccharide when its level exceeds 20% of air saturation. When the dissolved oxygen drops below 20% of air saturation, it has greater influence on the growth of bacteria. The optimum value of dissolved oxygen for bacterium growth is 25% of air saturation.