For sour I remember reading once it was because Acetic acid and Lactic acid can kill harmful microbes, so pleasantly sour food…
I don't think that's the primary reason why it tastes good though. [The latest literature suggests](https://pmc.ncbi.nlm.nih.gov…
Well this is a great opportunity to expand your knowledge, but first lets get oranges out of the way as they aren't very…
Good thing you’re a chemist and not a biologist lol. College classes aren’t free but Google is! ^ ^ [source 1](https://www.york.