Figure 8
Typical 1H NMR spectra (methanol- d 4 -KH 2 PO 4 in D 2 O, pH 6.0 extract) of CA4 d15 callus in the range of δ 0 - 8.5, 6.5 - 7.9 and 7.0 - 7.4. Assignments: 1, sucrose; 2, α-glucose; 3, β-glucose; 4, asparagine; 5, glutamine; 6, δ-aminobutyric acid; 7, alanine; 8, valine; 9, p-coumaric acid; 10, p-hydroxybenzyl alcohol glucoside; 11, bis [4-(β-D-glucopyranosyloxy)-benzyl]-2-isopropyltartrate (glucoside A); 12, bis [4-(β-D-glucopyranosyloxy)-benzyl]-2-(2- butyl)tartrate (glucoside B).