PCL102H1 Lecture Notes - Lecture 14: Ovulation, Salicylic Acid, Aspirin
6 Mar 2018
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The idea that you could isolate natural moolecules was a big topic in the 18-19th century. The chemical principle at play here is if a chemical tends to be more fat loving or more water loving. One way to separate conpounds in a principle is solvent extraction. Plant chemicals are in the bottom layer, pharmaceutical chemicals are in the upper layer. The chemical approach of solvent extraction had already been developed in germany. They ground up beats and did extraction where one layer was ground up beats and another was brandy. They found that if they took beats and used brandi as a dissolver, it was very sweet and the crystals were similar to sugar. It was extracted from the process of solvent extraction. Compounds containing nitrogen, and this was new in solvent extraction. When we were only looking at plant parts, our worlds were black and white.
