发布网友 发布时间:2022-04-21 23:37
共3个回答
热心网友 时间:2024-02-24 05:57
一水柠檬酸和无水柠檬酸是柠檬酸的两个品种,两者均可以用作食品添加剂,高规格的产品质量可以达到药品级要求,这两个品种的区别主要在于在分子结构中是否含有结晶水,含有一个结晶水的称为一水柠檬酸,否则为无水柠檬酸。两者在分子量上相差约10%,以纯柠檬酸计,一水柠檬酸中纯柠檬酸的含量比无水产品低约10%,相应的,价格前者比后者低10%甚至是更多,因为无水柠檬酸的提取过程对设备和工艺提出的要求更高一些,加工难度也更大。之所以被称为柠檬酸,是因为柠檬酸最初被发现存在于柠檬中,另外,在柑橘和橙类水果中也有相当含量。热心网友 时间:2024-02-24 05:57
一水柠檬酸就是柠檬酸结合水分子形成的结晶.制成食品没有什么区别.都属于食品添加剂.热心网友 时间:2024-02-24 05:58
my school is a beutiful place. it stands beside a wide river.but in the old days it was a backward little school.there are not many students in it.and they lived a hard life.During my childhood, it began to develope into a modern school. great changes have taken place there. the classrooms have been widened. libraries, gyms, laboratory and many building have sprung uo one after another.the life of the students is greatly improved.I love my school. I love its people. they are working hard so as to make it more beautiful.