What question did this study set out to answer?

To identify how the chemical structure of lotus seed starch changes over different storage periods.

February 26, 2026Journal of Pharmaceutical Analysis0 citationsOpen Access

Identification of lotus seeds stored over different periods by analyzing the changes in the chemical structure of starch

XLXijun Lian RZRuomeng Zhang YSYujia Shen

Key Points

To identify how the chemical structure of lotus seed starch changes over different storage periods.
Analyzed wavenumber shifts in lotus seed starch for chemical structure changes.
Monitored changes in diffraction angles of lotus seed starch during storage.
Examined transformations in helical conformations and crystallinity of starch.
Wavenumber of lotus seed starch shifted from 1019.6 cm −1 to 1016.3 cm −1.
C4 resonance in starch shifted to higher fields during storage.
Crystallinity of lotus seed starch increased during storage.

Abstract

• The wavenumber shift of lotus seed starch from 1019.6 cm −1 to 1016.3 cm −1 happens during storage. • The resonance of C4 in lotus seed starch shifts to higher fields during storage. • Intensities of diffraction angle at 2 θ 11.40 o /17.96 o of lotus seed starch increases/decreases during storage. • The single helical conformations of lotus seed starch transform into double ones. • The crystallinity of lotus seed starch increases during storage.

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