Journal of Food Science and Biotechnology
Abstract
[Objective ] This study explored the structural characteristics and in vitro antioxidant activity of yam polysaccharide-selenium nanoparticle (YP-SeNPs ) complexes.[Method ] Yam polysaccharide (YP) were obtained through hot water extraction and then purified by purification,diethylaminoethyl cellulose 52 (DEAE-52) column chromatography,and dialysis.With YP as a template,YP-SeNPs were prepared with different Se/YP mass ratios (1∶3,1∶1,and 4∶3) in an oxidation-reduction system comprising ascorbic acid (VC) and sodium selenite (Na 2SeO 3).The complexes were characterized via multiple techniques,including visual observation of solution color,ultraviolet-visible absorption (UV-vis ) spectroscopy,particle size measurement,transmission electron microscopy (TEM ),scanning electron microscopy (SEM ),atomic force microscopy (AFM ),Fourier-transform infrared spectroscopy (FT-IR ),energy-dispersive X-ray spectroscopy (EDX ),and X-ray diffraction (XRD ).The in vitro antioxidant activity of YP-SeNPs was evaluated by measuring the scavenging ability against 1,1-diphenyl- 2-picryl-hydrazyl (DPPH ) and 2,2’-azino-bis (3-ethylbenzothiazoline- 6-sulfonic acid ) diammonium salt (ABTS ) free radicals.[Result ] YP-SeNPs were successfully constructed,exhibiting spherical morphology and containing C,O,and Se elements.The optimal Se/YP mass ratio was determined to be 1∶3,yielding the smallest particle size of (61.67±0.69) nm.The complexes demonstrated high stability.YP effectively prevented the aggregation and sedimentation of SeNPs,thereby improving the dispersion of the complexes.YP-SeNPs exhibited good scavenging capacity against DPPH and ABTS free radicals,with the maximum scavenging rates of (96.66±0.79)% and (96.66±1.19)%,respectively.[Conclusion ] YP-SeNPs have good antioxidant activity and can be developed and utilized as a functional antioxidant.
Publication Date
6-15-2025
First Page
134
Last Page
143
DOI
10.12441/spyswjs.20250525001
Recommended Citation
XIAO, Yidong; OU, Lanmei; and ZHAO, Mengmeng
(2025)
"Construction , Structural Characterization , and Antioxidant Activity Evaluation of Yam Polysaccharide-selenium Nanoparticle Complexes,"
Journal of Food Science and Biotechnology: Vol. 44:
Iss.
6, Article 33.
DOI: 10.12441/spyswjs.20250525001
Available at:
https://spsw.spyswjs.cnjournals.com/journal/vol44/iss6/33
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