文献类型：期刊文献

中文题名：膜分离技术制备板栗苞单宁的研究

英文题名：Study on Preparation of Chestnut Shell Tannin by Polysulfone Membrane

作者：杜运平[1] 秦清[1,2] 徐浩[1,2] 陈文文[1,2] 陶林[2]

第一作者：杜运平

机构：[1]中国林业科学研究院林产化学工业研究所生物质化学利用国家工程实验室国家林业局林产化学工程重点开放性实验室江苏省生物质能源与材料重点实验室;[2]南京龙源天然多酚合成厂

年份：2011

卷号：39

期号：11

起止页码：6571-6572

中文期刊名：安徽农业科学

外文期刊名：Journal of Anhui Agricultural Sciences

收录：北大核心:【北大核心2008】；

基金：国家林业公益性行业科研专项资助项目(201004013)

语种：中文

中文关键词：板栗苞;单宁;纯化;聚砜膜

外文关键词：Chestnut shell; Tannin; Purification; Polysulfone membrane

分类号：S37

摘要：[目的]优选纯化板栗苞单宁的工艺条件。[方法]采用膜分离技术,研究了聚砜膜的截留相对分子质量、跨膜压差、膜面流速以及溶液温度对膜性能和产品质量的影响,并通过正交试验确定了纯化板栗苞单宁的最优方案。[结果]提纯板栗苞单宁的最佳工艺为:采用聚砜中空纤维截留相对分子质量为10 000的膜,跨膜压差为0.2 MPa,膜面流速为2.0 m/s,操作温度为40℃。此工艺条件,其截留液单宁含量可达64%左右,浊度在0.8NTU以下。[结论]该方法具有操作简单、高效节能、绿色环保等优点,为进一步开发板栗苞单宁生产工艺提供技术参考。
[Objective] To optimize the condition of purified chestnut shell tannin.[Method] By dint of polysulfone membrane,the effect of the molecular weight cutoff,trans-membrane pressure,flow velocity,and temperature on membrane property and product quality were researched with the orthogonal experimental method for the optimal design of experimental factor.[Result] The experimental results indicated that under the conditions of 10 000 molecular weight cutoff,0.2 MPa of tans-membrane pressure,2.0 m/s of flow velocity,and 40 ℃of temperature,the chestnut shell tannin with turbidity≤0.8NTU,and purity≥64% was obtained.[Conclusion] The method was easy to operate,efficient,energy-saving and environmental protective so as to provide technological reference for the development of production craft of tannin in Chestnut.