问题
问答题 简答题
有机酸的加工特性？
答案
参考答案：
含酸量与风味密切相关，加热使酸味增加，储藏时，酸味遂有机酸被消耗而变淡对微生物活动也有影响，pH<4.8，100度以下就有良好杀菌效果
酸加热时会降低果胶凝胶度
酸会与金属反应，加速设备和容器的腐蚀
酸还会与果蔬中色素物质和抗坏血酸的保存性有关
乳中有机酸对乳盐类平衡和在加热冷冻过程中的稳定性起作用
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有机酸的加工特性？
参考答案：
含酸量与风味密切相关，加热使酸味增加，储藏时，酸味遂有机酸被消耗而变淡对微生物活动也有影响，pH<4.8，100度以下就有良好杀菌效果
酸加热时会降低果胶凝胶度
酸会与金属反应，加速设备和容器的腐蚀
酸还会与果蔬中色素物质和抗坏血酸的保存性有关
乳中有机酸对乳盐类平衡和在加热冷冻过程中的稳定性起作用
| 完形填空。 Everyone needs friends. We all like to 1 close to someone. 2 is nice to have a friend to talk, laugh, and do things with. 3 , sometimes we need to be alone. We don't always want people 4 . But we would feel lonely if we never have a friend. No two people are 5 . Friends sometimes don't get on well. That doesn't mean they no longer like each other. Most of the time they will make up and become 6 again. Sometimes friends move away. Then we feel very _ 7 . We miss them very much, and we can call them and write to them. It could be that we could even see them again. And we can 8 new friends. It is surprising to find out how much we like new people when we get to know them. There's more good news for people who have friends. They live longer than people who don't. Why? It could be that they are 9 . Being happy helps you stay well. Or it could be just knowing that someone cares. If someone cares about you, you take 10 care of yourself. | |||
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