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Zhou W, Zhang R, Cai Z, Wu F, Hu Y, Huang C, Hu K, Chen Y. Preparation and properties of pH-sensitive cationic starch nanoparticles. Food Chem 2024; 437:137916. [PMID: 37944390 DOI: 10.1016/j.foodchem.2023.137916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 10/13/2023] [Accepted: 10/30/2023] [Indexed: 11/12/2023]
Abstract
Environmentally friendly and outstanding pH responsiveness cationic starch nanoparticles (CSNP) were prepared through ethanol precipitation from pH-sensitive starch, which preparation of cationic starch (CS) by grafting copolymerization with dimethylaminoethyl methacrylate (DMAEMA). In this work, CSNP showed a nanometer size and regular sphere, highly free-flowing molecular chains, and outstanding pH responsiveness which was proved by the high stability of its stabilized emulsion through 6 emulsification/ demulsification transition. The result of the SEM and particle size distribution indicated that the size of the CSNP-0 was about 800 nm, and decreased with the DMAEMA increased. Moreover, the CSNP-stabilized emulsion was stable at pH = 7 and pH = 12. However, this emulsion exhibited breakage at pH = 2. In addition, the CSNP-stabilized Pickering emulsion achieved an emulsification/demulsification switching by cycling the pH at least 6 times, during which the average droplet size gradually increased. At pH ≥ 7, the emulsions exhibit shear thinning behavior.
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Affiliation(s)
- Wei Zhou
- School of Food Science, Guangdong Pharmaceutical University, Zhongshan, Guangdong Province 528458, China; GDPU-HKU Zhongshan Biomedical Innovation Platform, Zhongshan, Guangdong Province 528458, China
| | - Rui Zhang
- School of Food Science, Guangdong Pharmaceutical University, Zhongshan, Guangdong Province 528458, China; GDPU-HKU Zhongshan Biomedical Innovation Platform, Zhongshan, Guangdong Province 528458, China
| | - Zhen Cai
- School of Food Science, Guangdong Pharmaceutical University, Zhongshan, Guangdong Province 528458, China; GDPU-HKU Zhongshan Biomedical Innovation Platform, Zhongshan, Guangdong Province 528458, China
| | - Fangfang Wu
- School of Food Science, Guangdong Pharmaceutical University, Zhongshan, Guangdong Province 528458, China; GDPU-HKU Zhongshan Biomedical Innovation Platform, Zhongshan, Guangdong Province 528458, China
| | - Yong Hu
- School of Food Science, Guangdong Pharmaceutical University, Zhongshan, Guangdong Province 528458, China; GDPU-HKU Zhongshan Biomedical Innovation Platform, Zhongshan, Guangdong Province 528458, China
| | - Chao Huang
- School of Food Science, Guangdong Pharmaceutical University, Zhongshan, Guangdong Province 528458, China; GDPU-HKU Zhongshan Biomedical Innovation Platform, Zhongshan, Guangdong Province 528458, China
| | - Kun Hu
- School of Food Science, Guangdong Pharmaceutical University, Zhongshan, Guangdong Province 528458, China; GDPU-HKU Zhongshan Biomedical Innovation Platform, Zhongshan, Guangdong Province 528458, China.
| | - Yun Chen
- School of Food Science, Guangdong Pharmaceutical University, Zhongshan, Guangdong Province 528458, China; GDPU-HKU Zhongshan Biomedical Innovation Platform, Zhongshan, Guangdong Province 528458, China.
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Andreev MV, Demina MM, Medvedeva AS, Safronova LP, Albanov AI, Afonin AV. Synthesis of 3-Chloro-3-(trimethylsilyl)prop-2-enoic Acid Amides
and Hydrazides from 3-(Trimethylsilyl)propynoic Acid. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2021. [DOI: 10.1134/s1070428021040102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Mareev AV, Andreev MV, Ushakov IA. Base‐Catalyzed Hydration of Silicon‐Containing Activated Alkynes: The Effect of Substituents at the Triple Bond. ChemistrySelect 2020. [DOI: 10.1002/slct.202002410] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Alexander V. Mareev
- A. E. Favorsky Irkutsk Institute of Chemistry Siberian Branch of the Russian Academy of Sciences 664033 Favorsky st. 1, Irkutsk Russia
| | - Mikhail V. Andreev
- A. E. Favorsky Irkutsk Institute of Chemistry Siberian Branch of the Russian Academy of Sciences 664033 Favorsky st. 1, Irkutsk Russia
| | - Igor A. Ushakov
- A. E. Favorsky Irkutsk Institute of Chemistry Siberian Branch of the Russian Academy of Sciences 664033 Favorsky st. 1, Irkutsk Russia
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