What is the best extraction method for iridoids?

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Jack Silver

As these are generally glycosylated, and thus fairly polar, methanol or methanol water mixtures are generally employed for the initial extraction.

See:

http://www.znaturforsch.com/ac/v58c/s58c0481.pdf

http://iridoid.org/

Thamere Cheriet

Wriginia, do you have a paper talking about this protocol?