黄原胶发酵液的提纯浓缩研究

Studies on the Purification and Concentration of Xanthan Gum Fermentation Broth

本文采用过滤与超滤工艺对黄原胶进行提纯和浓缩研究,研究结果表明,黄原胶发酵液经过滤与超滤处理可去除发酵液中悬浮的不溶性固形物和可溶性离子物质。产品得到提纯并可获得浓度为8.7％的黄原胶浓缩掖。提纯和浓缩后的黄原胶具有良好的增粘性,触变性和冷热稳定性。

By treatment with filtration andultrafiltration steps, this paper provides a process for purifying and concentration of xanthan gum fermentation broth. The results of the studies showed that the xanthan gum fermentation broth was filtrared and utrafiltrated to remove suspended insoluble solids and to separate soluble ionic substances. The product is purified and contain 8.7% of dissolved xanthan gum. After treament with filtration and ultrafiltration ,the xanthan gum shows the excellent thickening property,thixotropic property and stability to cold and hot.