期刊论文

中文

食品科学

1002-6630

2013

34

18

23-27

10.7506/spkx1002-6630-201318005

国家现代农业产业技术体系建设专项(CARS-46)； 国家“863”计划项目(2010AA023003)； 武汉工业学院研究生创新基金项目(2010CX014)；

本校为第一机构

研究混合床离子交换树脂对草鱼肽的脱盐工艺条件,并分析脱盐后草鱼肽的理化性质。结果表明:脱盐的较佳工艺条件为上样质量浓度10mg/mL、流速6BV/h、pH7.0、阴阳离子树脂混合比例为2:3。在该工艺条件下,脱盐率达到81.7%,肽回收率为80.5%,草鱼肽灰分从17.5%降低到3.2%,肽含量从80.9%增加到90.3%。脱盐后草鱼肽的相对分子质量分布范围主要集中在190~1000之间,含量达到了91.5%;溶解度在pH2~10范围内均大于95%,溶液质量浓度达到40g/100mL时,其黏度只有4.5mPa·s,具有高质量浓度、低黏度的特点。

In the present study, we investigated the process conditions for desalinating grass carp peptides （GCPs） using mixed-bed ion exchange resin and characterized desalinated GCPs. The optimal desalination conditions for GCPs were sample concentration of 10 mg/mL, loading flow rate of 6 BV/h, pH 7.0 and anion/cation exchange resin ratio of 2：3. Under these conditions, the desalination rate was 81.7% and the peptide recovery was 80.5%; meanwhile, the ash content in GCPs was reduced from 17.5% to 3.2%, and the peptide content was increased from 80....