壳聚糖对小麦淀粉理化性质的影响

doi:10.7506/spkx1002-6630-201321018

食品科学 ›› 2013, Vol. 34 ›› Issue (21): 87-90.doi: 10.7506/spkx1002-6630-201321018

壳聚糖对小麦淀粉理化性质的影响

孙翠霞，熊柳，孙庆杰*，张亚楠

青岛农业大学食品科学与工程学院，山东青岛 266109

收稿日期:2012-10-10 修回日期:2013-10-11 出版日期:2013-11-15 发布日期:2013-10-28
通讯作者: 孙庆杰 E-mail:phdsun@163.com
基金资助:
青岛市科技支撑计划项目(12-1-3-36-nsh)

Effect of Chitosan on Physico-chemical Properties of Wheat Starch

SUN Cui-xia，XIONG Liu，SUN Qing-jie*，ZHANG Ya-nan

College of Food Science and Engineering, Qingdao Agricultural University, Qingdao 266109, China

Received:2012-10-10 Revised:2013-10-11 Online:2013-11-15 Published:2013-10-28
Contact: SUN Qing-jie E-mail:phdsun@163.com

摘要/Abstract

摘要：

以小麦淀粉为研究对象，分析不同含量壳聚糖对小麦淀粉糊化特性、凝胶质构、冻融稳定性、吸水指数和可溶性固形物含量等理化性质的影响。结果表明：随着壳聚糖添加量的增加，小麦淀粉糊化温度由90.35℃降低至80.26℃，回生率由46.00%逐渐降低至29.86%，峰值黏度由2587.0mPa·s升高至4893.2mPa·s。添加壳聚糖后的小麦淀粉凝胶的硬度由71.93g降低至42.77g，而弹性略有增加。另外，与原小麦淀粉相比，添加了壳聚糖的小麦淀粉析水率降低，冻融稳定性增强，且吸水指数和可溶性固形物含量明显增加。

关键词: 小麦淀粉, 壳聚糖, 理化性质

Abstract:

In this study we investigated physio-chemical properties of wheat starch including pasting properties, texture
properties, freeze-thaw stability, water absorption index and soluble solid content as a function of the amount of chitosan
added. With increasing chitosan content, the gelatinization temperature and retrogradation rate of wheat starch reduced
slightly from 90.35 to 80.26 ℃ and 46.00% to 29.86%, respectively and the peak viscosity significantly increased from
2587.0 to 4893.2 mPa·s. Texture analyses showed that the hardness of wheat starch gel decreased from 71.93 to 42.77 g
and its elasticity rose gradually with increasing chitosan content. In addition, compared with native wheat starch, the freezethaw
stability was improved and water absorption index and soluble solid content were increased obviously by adding
chitosan, while reducing the syneresis.

Key words: wheat starch, chitosan, physico-chemical properties

中图分类号:

Q929.2

孙翠霞，熊柳，孙庆杰*，张亚楠. 壳聚糖对小麦淀粉理化性质的影响[J]. 食品科学, 2013, 34(21): 87-90.

SUN Cui-xia，XIONG Liu，SUN Qing-jie*，ZHANG Ya-nan. Effect of Chitosan on Physico-chemical Properties of Wheat Starch[J]. FOOD SCIENCE, 2013, 34(21): 87-90.

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壳聚糖对小麦淀粉理化性质的影响

Effect of Chitosan on Physico-chemical Properties of Wheat Starch

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