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Article

An Efficient Approach to Prepare Water-Redispersible Starch Nanocrystals from Waxy Potato Starch

1
School of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
2
Guangxi Key Laboratory of Biorefinery, Guangxi Academy of Sciences, Nanning 530003, China
*
Authors to whom correspondence should be addressed.
Academic Editor: Sergiu Coseri
Polymers 2021, 13(3), 431; https://doi.org/10.3390/polym13030431
Received: 9 January 2021 / Revised: 22 January 2021 / Accepted: 25 January 2021 / Published: 29 January 2021
(This article belongs to the Section Biomacromolecules, Biobased and Biodegradable Polymers)
Starch nanocrystals (SNCs) are a biodegradable polymer which has been widely studied and used in many fields. In this study, we have developed an efficient procedure for the preparation of SNCs. First, sodium hexametaphosphate (SHMP) and vinyl acetate (VAC) were used to modify waxy potato starch (WPS). Then, the modified starches were hydrolyzed with sulfuric acid to prepare SNCs. Results showed that SNCs prepared with modified starch had higher zeta potentials and better dispersion properties than the original starch. After modification, WPS still maintained its semi-crystalline structure, but the surface became rougher. SHMP-modified WPS showed a decrease in viscosity peak and an increase in gelatinization temperature. VAC-modified WPS showed increased swelling power. Additionally, SNCs prepared with VAC-modified WPS had better water redispersibility and dispersion stability than those from SHMP-modified starch—which will have broader application prospects in the field of safe and biodegradable food packaging. View Full-Text
Keywords: starch nanocrystals; waxy potato starch; water redispersibility; dispersion stability starch nanocrystals; waxy potato starch; water redispersibility; dispersion stability
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MDPI and ACS Style

Wang, H.; Liu, C.; Shen, R.; Gao, J.; Li, J. An Efficient Approach to Prepare Water-Redispersible Starch Nanocrystals from Waxy Potato Starch. Polymers 2021, 13, 431. https://doi.org/10.3390/polym13030431

AMA Style

Wang H, Liu C, Shen R, Gao J, Li J. An Efficient Approach to Prepare Water-Redispersible Starch Nanocrystals from Waxy Potato Starch. Polymers. 2021; 13(3):431. https://doi.org/10.3390/polym13030431

Chicago/Turabian Style

Wang, Haijun, Cancan Liu, Runyan Shen, Jie Gao, and Jianbin Li. 2021. "An Efficient Approach to Prepare Water-Redispersible Starch Nanocrystals from Waxy Potato Starch" Polymers 13, no. 3: 431. https://doi.org/10.3390/polym13030431

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