Figure 4From: Hyperproduction of poly(4-hydroxybutyrate) from glucose by recombinant Escherichia coli1H NMR (A) and13C NMR spectra (B) of poly(4HB). Numbering scheme were the same as that of poly(4HB) molecular structure described in (A). The inserted dashed enveloped areas in (A) were the enlarged details of each proton split peaks. Chemical shifts were in ppm and tetramethylsilane (TMS) was employed as an internal chemical shift standard.Back to article page