均质对李带肉果汁稳定性及理化性状的影响

应用苏制UDA—A114型破碎机研究了李带肉果汁的均质效果,结果表明,此机对李带肉果汁具有良好的均质作用。李带肉果汁在对带肉汁均质后效果最好．其次为二次均质果浆和一次均质果浆。40%果浆含量的带肉果汁采用上述方法均质后,产品中<3μm的粒子比例分别比对照增加17．68%．15．29%和8．37%。50%果浆含量的产品也有类似结果。均质后,李带肉果汁静置30天后无分层,而对照则产生明显的分层现象。

The effect of homogenization on stability of plum nectar was investigated by using UDA-A114 type disintegrator. Results indicated that homogenization with UDA-A114 has better effect on plum nectar than on plum pulp homogenized two times and one time. Percentage of particles smaller than 3 μm in plum nectar contained 40% pulp homogenized with above three treatments was 17. 68%、 15. 92% and 8. 73% more than those in control samples respectively. Plum nectar contained 50% pulp had similar results too. No precipitation was found in homogenized plum nectar , but significant precipitation was found in control samples after 30-days storage