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. Author manuscript; available in PMC: 2012 Jul 25.
Published in final edited form as: J Agric Food Chem. 2010 Sep 8;58(17):9384–9395. doi: 10.1021/jf904561e

Table 5.

Diagnostic shift in Band I and II of the 6-O-glucuronides in relation to the corresponding aglycone

Compound Aglycone or
Glucuronide
(O-G)		 λmax, nm Diagnostic shifts in
Band I and II in
relation to aglycones		 Figure
number
in SI
Band II Band I
6HF Aglycone 267.7 305.6 2.14
6-O-G 262.9 305.6 No change (Band I)
−4.8 nm (Band II)		 2.14
6H4’MF Aglycone 277.1 310.3 2.15
6-O-G 277.1 310.3 No change (Band I)
No change (Band II)		 2.15
6H7MF Aglycone 262.9 305.6 2.16
6-O-G 262.9 310.3 +4.7 nm (Band I)
No change (Band II)		 2.16
3,6DHF Aglycone 258.2 329.4 2.21
6-O-G 253.5 329.4 No change (Band I)
−4.7 nm (Band II)		 2.21
5,6DHF Aglycone 281.9 ND* 2.24
6-O-G 277.1 ND* −4.8 nm (Band II) 2.24
6,4’DHF Aglycone 272.4 329.4 2.26
6-O-G 267.7 329.4 No change (Band I)
−4.7 nm (Band II)		 2.26
6,7DHF Aglycone 267.7 319.9 2.27
6-O-G 267.7 310.3 −9.6 nm (Band I)
No change (Band II)		 2.27
5,6DH7MF Aglycone 277.1 319.9 2.30
6-O-G 272.4 319.9 No change (Band I)
−4.7 nm (Band II)		 2.30
3,6,4’THF Aglycone ND* 357.8 2.34
6-O-G ND* 353.2 −4.6 nm (Band I) 2.34
*

ND means not detected by the Empower software in the spectra