麦麸发酵副产物清除重金属离子汞的研究  

Scavenging of Hg by Wheat Bran Fermentation Byproduct

作　　者：张宁[1] 张璟[1] 欧仕益[1] 汪勇[1] 包惠燕[1] 

机构地区：[1]暨南大学食品科学与工程系

出　　处：《食品与发酵工业》2004年第12期52-54,共3页Food and Fermentation Industries

基　　金：广州市科技攻关引导项目(2003Z3/10061)

摘　　要：黑曲霉可发酵麦麸生产阿拉伯木聚糖酶和阿魏酸酯酶。发酵后的固体残渣质地柔软,比表面积大。为了加强综合利用能力,研究了其对重金属离子汞的清除作用。结果表明,样品颗粒越小,pH越高,越有利于对汞的吸附,最大吸附量为033g/g(麦麸),最小残留率为02%。Wheat bran can be fermented by A. niger to produce Arabic xylanase and ferulic acid esterase. The solid fermentation residues are soft and have large specific surfaces. To improve its comprehensive usage, scavenging effect of Hg by those wheat bran fermentation byproduct is studied. It is indicated that the smaller size of the tested smaples and the higher pH, the higher scavenging rate. The maximum absorption amount is 0.33?g/L wheat bran, and the lowest residue rate is 0.2%.

关 键 词：发酵 麦麸 柔软 阿拉伯木聚糖酶 阿魏酸酯酶 残留率 副产物 比表面积 研究 残渣 

分 类 号：X792[环境科学与工程—环境工程]