文献类型：期刊文献

中文题名：凹土负载壳聚糖对马氏珠母贝糖胺聚糖提取物中镉的吸附研究

英文题名：Study on adsorption of cadmium in extract of Pinctada martensii glycosaminoglycan by attapulgite-chitosan

作者：陈萌萌[1];吴红棉[1];衣美艳[1];范秀萍[1];郭妍妍[1];胡雪琼[1]

机构：[1]广东海洋大学食品科技学院,广东湛江524088

年份：2014

卷号：35

期号：14

起止页码：282

中文期刊名：食品工业科技

外文期刊名：Science and Technology of Food Industry

收录：CSTPCD、、北大核心2011、北大核心、CSCD、CSCD2013_2014

基金：广东省科技厅科技计划项目(2010B020313003)

语种：中文

中文关键词：马氏珠母贝;糖胺聚糖;镉;凹土-壳聚糖

外文关键词：Pinctada martensii ; glycosaminoglycan ; cadmium ;attapulgite-chitosan

中文摘要：采用凹土负载壳聚糖对马氏珠母贝全脏器的酶解液进行吸附脱镉研究,通过单因素实验,考察了振荡时间、pH、振荡速度和复合物(凹土-壳聚糖)添加量对糖胺聚糖(GAG)粗品中镉脱除和GAG含量的影响,并利用响应面法优化出镉脱除条件。结果表明:糖胺聚糖中镉脱除的最优条件是振荡时间31.0min,pH7.0,振荡速度143.0r/min,复合物添加量13.0mg/mL,在此条件下脱镉率达到76.9%,GAG含量为47.1%。

外文摘要：Absorption of the cadmium of hydrolyzate from Pinctada martensii whole organ by attapulgite-chitosan complex was studied. The effects of vibration time,pH,vibration speed and compound dosage （attapulgite- chitosan） of attapulgite-chitosan on cadmium removal rate and GAG yield were investigated through single factor assay,and the conditions of removing cadmium were optimized by response surface method. The optimum conditions of removing cadmium in GAG were 143.0r/min of speed of vibration and pH7.0,processing for 31.0min with 13.0mg/mL dosage of attapulgite-chitosan. Under this condition,cadmium removal rate reached 76.9%, GAG yield reached 47.1%.