How can polymer proanthocyanidins be standardized?
Dear Sabir Nishanbaev, though the meaning of the word 'standardized' is unclear for me, the following documents go with features of the polymer in question. My Regards
https://www.researchgate.net/publication/328833484_The_Effects_of_Different_Degrees_of_Procyanidin_Polymerization_on_the_Nutrient_Absorption_and_Digestive_Enzyme_Activity_in_Mice
https://doi.org/10.1016/0031-9422(96)00301-9
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4196849/
https://doi.org/10.1093/jn/130.11.2733
https://www.hindawi.com/journals/jchem/2013/352042/
https://doi.org/10.1021/jf00028a012
https://doi.org/10.1021/jf970753d
Thank you very much
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