期刊论文

中文

食品与机械

1003-5788

2016

32

12

40-44

10.13652/j.issn.1003-5788.2016.12.009

湖南省研究生创新项目

本校为第一机构

研究物料含水量、挤压温度、螺杆转速对马铃薯全粉水溶性、碘蓝值、糊化特性等理化性质的影响。结果表明:随物料含水量的增大,马铃薯全粉的水溶性、碘蓝值逐渐减小,吸水性、吸油性逐渐增大,膨胀性先增大后减小,在35%时最大,糊化温度先减小后增大,峰值黏度、谷值黏度、最终黏度、凝胶性逐渐增大,热稳定性在30%时最强;随挤压温度的增大,水溶性、碘蓝值逐渐增大,吸水性、吸油性逐渐减小,膨胀性先增大后减小,在170 ℃最大,糊化温度、热稳定性逐渐增大,峰值黏度、谷值黏度、最终黏度、凝胶性逐渐减小;随螺杆转速的增大,水溶性、碘蓝值逐渐增大,吸水性、吸油性逐渐减小,膨胀性先增大后减小,在360 r/mi...

Several physicochemical properties of potato powder were studied, including the material moisture, extrusion temperature and screw speed's influence. The results indicated that with the increase of material moisture, the water-solubility, iodine blue value of potato powder decreasing, water-absorption, oil-absorption increasing, expansibility increased firstly and then decreased, which was the largest in moisture of 35%, while the gelatinization temperature decreased firstly then increased, and the peak, valley, final viscosity, gelatin increas...