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Updated: Jul 5, 2025
Analysis and Specification of Starch Granule Size Distributions
Published on: March 4, 2021
Isolation and characterization of natural nano starch from amaranth starch
Raozhen Zuo1, Xiangli Kong2, Yajuan Wang3
1School of Materials and Chemical Engineering, Ningbo University of Technology, Zhejiang, Ningbo 315211, China; College of Food and Pharmacy, Zhejiang Ocean University, Zhoushan, Zhejiang 316000, China.
Abstract:
Nano starch exhibits many advantages for application in diverse fields. Amaranth starch consisted of starch particle aggregates, isolated amaranth starch, and few natural nano starch (NNS), while NNS (0.92 ± 0.12 μm) was successfully isolated for the first time. Compared with the isolated amaranth starch, NNS showed smaller particle size but larger molecular weight, suggesting that the molecules arranged densely. NNS had a weak A-type crystal structure because of its more content of short starch chains, but higher amylose content resulted in the increase of its gelatinization temperature. The special NNS, owning several different physicochemical properties from amaranth starch, can open new ways for the production and application of nano biomass materials.
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