Structure and physicochemical properties of starches in lotus (Nelumbo nucifera Gaertn.) rhizome (pages 273–283)
Huaguang Yu, Libao Cheng, Jingjing Yin, Shunjun Yan, Kejun Liu, Fengmin Zhang, Bin Xu and Liangjun Li
Article first published online: 5 MAY 2013 | DOI: 10.1002/fsn3.37
Starches were prepared from rhizomes of two lotus cultivars, and their structure and physicochemical properties were studied. X-ray powder diffraction (XRD) and 13C cross-polarization magic-angle spinning nuclear magnetic resonance (13C CP-MAS NMR) confirmed that starch in rhizome of cultivar Meirenhong exhibited C-type polymorph, while starch in rhizome of cultivar Wawalian showed A-type polymorph. The relative crystallinities of Meirenhong and Wawalian samples were quantitatively estimated to be 35% and 37% from XRD, and 39% and 41% from 13C CP-MAS NMR, respectively.