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. 2021 Oct 25;12:757666. doi: 10.3389/fphar.2021.757666

TABLE 2.

Phytochemical characterization of EPs 7630 fractions.

Fraction Mass balance (g) Major constituents as determined by HPLC, GPC, and NMR
>30 kDa 4.45 polymeric prodelphinidins, polymeric carbohydrates, umckalin, umckalin sulfate, minor amounts of purine derivatives
10–30 kDa 0.25 higher oligomeric prodelphinidins with a mean oligomerization degree of 7.1, poly-/oligomeric carbohydrates
5–10 kDa 0.23 tri- to hexameric prodelphinidins with a mean oligomerization degree of 4.7, undefined oligomeric carbohydrates
3–5 kDa 0.13 di- to pentameric prodelphinidins with a mean oligomerization degree of 4.6, undefined oligomeric carbohydrates
1–3 kDa 0.16 di- to tetrameric prodelphinidins with a mean oligomerization degree of 3.6, undefined oligomeric carbohydrates, minor amounts of umckalin and umckalin sulfate
<1 kDa 4.98 gallocatechin and epigallocatechin, major amounts of mono/dimeric carbohydrates, purine derivatives, benzopyranones including umckalin and umckalin sulfate