Demiurgic: Per my previous post, you can “write-up” the process as you presently conceive it. I, and I believe other practitioners here, have drafted claims to prophetic processes. What are the novel and non-obvious differences btw your process and the already-patented process? “Process variables”, like temperature and time, don’t usually contribute to patentablility, unless there are unexpected results (i.e. a “wow”) concerning efficiency, purity, efficacy etc. Is a chromatographic step involved? What are the stationary and mobile phases and why are these not so-called “routine optimization”? You would have to take some minimal position on such options. An atty / agent can help you with this. I simply (and appropriately) don’t know enough facts of your case. My prior post concerned only the possibility of patenting a yet-not-practiced process, not the ultimate patentability of such process. The latter depends on the facts.
In my experience with “nutraceuticals”, process claims can sometimes be as valuable as product claims. Everybody (maybe) knows this or that flavonoid, flavone, oligopeptide - or whatever - is/are in the plant. Your process is more “efficient” in the broadest sense. It (unexpectedly) gets the important stuff in high yield and purity at low cost. Eventually, if the product (the nuraceutical) is successful, somebody in China or India WILL rip-off your process. 35 USC 271(g) (process patent protection) at least gives you the possibility of blocking knock-off imports made by your process.
Picking an attorney - in any field - is like picking a new physician. Per Klavernista, it requires some research.