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. 2019 Apr 5;11(4):791. doi: 10.3390/nu11040791

Table 3.

The partition coefficient (K value) of nobiletin, tangeretin, and 5-demethylnobiletin in different solvent systems.

Solvent System (v/v/v/v) Ratio Knobiletin Ktangeretin K5-demethylnobiletin
Hexane-ethyl acetate-methanol-water 1:0.8:1.1:1.1 0.76 1.32 2.59
Hexane-ethyl acetate-methanol-water 1:0.8:1.1:1 0.69 1.09 2.42
Hexane-ethyl acetate-methanol-water 1:0.8:1.1:0.9 0.57 0.88 2.21
Hexane-ethyl acetate-methanol-water 1:0.8:1.2:1.1 0.63 1.39 2.63
Hexane-ethyl acetate-methanol-water 1:0.8:1.2:1 0.58 1.15 2.56
Hexane-ethyl acetate-methanol-water 1:0.8:1.2:0.9 0.43 0.98 2.31
Hexane-ethyl acetate-methanol-water 1.1:0.8:1.1:1.1 0.67 1.21 2.36
Hexane-ethyl acetate-methanol-water 1.1:0.8:1.1:1 0.61 1.13 2.10
Hexane-ethyl acetate-methanol-water 1.1:0.8:1.1:0.9 0.55 0.78 1.81
Hexane-ethyl acetate-methanol-water 1.1:0.8:1.2:1.1 0.47 1.67 2.34
Hexane-ethyl acetate-methanol-water 1.1:0.8:1.2:1 0.32 1.49 1.97
Hexane-ethyl acetate-methanol-water 1.1:0.8:1.2:0.9 0.26 0.90 1.77
Hexane-ethyl acetate-methanol-water 1:0.8:1.1:1.1 0.76 1.32 2.59