全部

1·Ethyl and propyl gallate were synthesized without water carrying agent.

乙酯和丙酯的合成还摒弃了带水剂。

2·A new processing method of propyl gallate was advanced in order to decrease the cost of production.

对常见的没食子酸丙酯提出一种尚未见报道的制备方法，可以大幅度地降低生产成本。

3·Through orthogonal test was designed for optimal inhibition the new compound color fixative:green tea extract 0.03%, propyl gallate 0.005%, citric acid 1.0%, VE 0.01%.

前言： 利用柠檬酸、VE、 没食子酸丙酯、绿茶提取物各自的特性，通过正交实验最终确定了最佳的新型复合护色剂组合：绿茶提取物0.03%、没食子酸丙酯0.005%、柠檬酸1.0%、VE含量0.01%。