玉米低聚肽螯合钙的结构表征及其体外稳定性

以玉米低聚肽和氯化钙为原料制备玉米低聚肽螯合钙,通过分析氨基酸组成、电镜扫描、紫外扫描来表征玉米低聚肽螯合钙的结构特征,并分析其体外稳定性。结果表明:玉米低聚肽经过螯合后,结构和形态都发生了改变;有吸收峰且吸收强度有很大的变化;玉米低聚肽螯合钙在20~80℃、非强酸强碱、胃蛋白酶消化作用下,均具有较好的稳定性。

Time-Resolved Measurement of Nonradiative Processes by Using Laser Interferometry

Photoacoustic signals generated by nonradiative processes of photo-initiated chemical reactions in solutions have been detected by a laser heterodyne interierometer witli high sensitivity and wide band.This technique can accurately carry out the time-resolved measurement of transient processes in nanosecond scale.The experimental results and theoretical calculations for probing some fast chemicol reactions are described.