英语语法分析

Sorbic acid is a new type of antiseptic and freshening agent for food.

山梨酸是一种新型的食品防腐保鲜剂。

Sorbic alcohol is made from starch or cane sugar through hydrolysis and hydrogenation.

山梨醇是以淀粉或蔗糖为原料经水解、氢化制得。

First, the synthesis method and anti-microbial activity of bromo-sorbic acid were studied.

第一部分为溴代山梨酸的合成方法和抗菌作用研究。