期刊论文

中文

食品科学

1002-6630

2009

30

24

158-162

10.3321/j.issn:1002-6630.2009.24.033

国家“863”计划项目（2006AA09Z444 2007AA091802） 广东省-科技部产学研结合项目（2007A090302059） 农业部现代农业产业技术体系建设专项资金资助项目（nycytx-49）

本校为第一机构

研究DA201-C型大孔吸附树脂对鱼降压肽的脱盐工艺,并分析脱盐后的鱼降压肽的理化性质.结果表明,DA201-C型大孔吸附树脂较佳脱盐工艺条件为上样质量浓度10mg/ml、上样流速1.5BV/h、解吸剂为70%乙醇.鱼降压肽经DA201-C型大孔吸附树脂处理后其灰分由13.89%下降到3.89%,血管紧张素转化酶(ACE)抑制活性由64.35%增加到95.0%.脱盐后的鱼降压肽的分子质量分布范围在200～7000D之间,其中在200～2000D之间的肽含量为81.7%;其在pH2～12的溶解度均为98%以上,吸湿性跟大豆肽类似,吸湿率比尿素低,比甘油高.

A certain amount of salts were introduced into fish antihypertensive peptides during the process of fish protein hydrolysis and 10% of ash in the final products was capable of influencing its activities and quality. The desalting technology of fish antihypertensive peptides by DA201-C macroporous adsorption resin was investigated as well as its physic-chemical properties after desalting. The results indicated that the optimum condition for desalting was obtained as follows： loading sample concentration of 10 mg/ml, sampling flow rate of 1.5 BV...