I'm starting this
thread because today there were two posts asking for
natural emulsifiers and
natural dyes. There is a prejudice amongst Permies that natural is better than synthetic, and this may be totally reasonable, given the unforeseen consequences and side effects of the use of synthetic chemicals. But there is the rub -- just what is "natural" and what is synthetic? If something that is natural can be made synthetically in the lab, are the two the same, or is one method better than the other? If we are worried about how nature breaks things down and feeds the soil food web, are there
unnatural molecules that we need to avoid?
Among chemists who study these things, there is a familiar history of isolating the natural product, identifying it chemically, seeing if it can be made synthetically in the lab, and then how it can be modified to a not-natural product. An obvious example is the difference between morphine and heroin. Morphine is a natural product that can be isolated from opium poppies; heroin is di-acetyl morphine, a product that does not occur in nature, but has to be produced in a laboratory by treating morphine with acetic anhydride. This also serves as a counterexample to the old ad slogan "better living through chemistry".
So post your questions here about the "natural" product you are looking for and I will try to give a direct
answer. Not biased toward the chemical industry, just because I used to work in it, but also not biased toward natural herbs, even though I do grow and use quite a few of my own now.