Citation: Nan Wang, Lingling Wu, Yaya Su, Haifeng Tang, Hailong Yuan. Linking starch particle physicochemical properties to functionality in medicinal plants: Insights from Polygonum multiflorum and Smilax glabra[J]. Chinese Chemical Letters, ;2026, 37(1): 111270. doi: 10.1016/j.cclet.2025.111270 shu

Linking starch particle physicochemical properties to functionality in medicinal plants: Insights from Polygonum multiflorum and Smilax glabra

Nan Wang ^a ,
Lingling Wu ^a ,
Yaya Su ^a ,
Haifeng Tang ^{b, *,} ,
Hailong Yuan ^{a, *,}

a.
Department of Pharmacy, Air Force Medical Center, PLA, Air Force Medical University, Beijing 100142, China
b.
Department of Chinese Materia Medica and Natural Medicines, School of Pharmacy, Air Force Medical University, Xi'an 710032, China

tanghaifeng71@163.com

yhlpharm@126.com

Received Date: 18 February 2025
Revised Date: 25 April 2025
Accepted Date: 27 April 2025
Available Online: 28 April 2025

Figures(3)

This study investigates the properties of high-purity starches extracted from Polygonum multiflorum (PMS) and Smilax glabra (SGS). The starches were characterized by scanning electron microscopy, Fourier-transform infrared spectroscopy, X-ray diffraction, high-performance anion-exchange chromatography, and differential scanning calorimetry. Significant differences were observed in their morphological, physicochemical, and functional properties. PMS had a smaller particle size (13.68 µm), irregular polygonal shape, A-type, lower water absorption (62.67%), and higher oil absorption (51.17%). In contrast, SGS exhibited larger particles (31.75 µm), a nearly spherical shape, B-type, higher crystallinity (50.66%), and greater amylose content (21.54%), with superior thermal stability, shear resistance, and gelatinization enthalpy. SGS also contained higher resistant starch (83.28%) and longer average chain length (20.58%), but showed lower solubility, swelling power, light transmittance, and freeze-thaw stability. The physicochemical properties differences in crystal pattern and particle morphology between PMS and SGS lead to distinct behaviors during in vitro digestion and fermentation. These findings highlight the potential of medicinal plant starches in functional ingredients and industrial processes.
- Starch particle,
- Physicochemical properties,
- Starch function,
- Resistant starch,
- Starch extraction
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