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Article

The Preparation, Properties, and Characterization of Octenyl Succinic Anhydride-Modified Turmeric Starches and Their Emulsification for Pickering Emulsions

1
Fujian Key Laboratory of Agro-Products Quality and Safety, Institute of Quality Standards & Testing Technology for Agro-Products, Fujian Academy of Agricultural Sciences, Fuzhou 350003, China
2
College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
3
College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Foods 2025, 14(7), 1171; https://doi.org/10.3390/foods14071171
Submission received: 6 February 2025 / Revised: 11 March 2025 / Accepted: 26 March 2025 / Published: 27 March 2025
(This article belongs to the Section Food Physics and (Bio)Chemistry)

Abstract

Turmeric has extensive applications in various fields, including food and medicine. However, research on turmeric starch remains relatively scarce. There is a significant lack of in-depth studies on its processing properties and starch modification abilities. In this context, octenyl succinic anhydride (OSA)-modified turmeric starches (O-MTSs) were synthesized. Subsequently, a comprehensive investigation was carried out, including property analysis, characterization, and evaluation of the emulsifying capacity. The alterations in solubility, swelling degree, syneresis, and transparency of turmeric starches before and after modification were systematically studied. The characterization of O-MTSs was conducted using a scanning electron microscope (SEM), particle size analysis, X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), and thermogravimetric analysis. The possibility of using O-MTS as an emulsifier to prepare Pickering emulsions was explored. The results show that O-MTS had better solubility, swelling degree, syneresis, and transparency compared to turmeric starches (TSs). The O-MTS retained a relatively intact morphology, but its particle size slightly increased, and the characteristic peak at 995 cm−1 shifted to some extent. The relative crystallinity decreased from 32.59% to 18.39%, and the water-binding capacity of O-MTSs improved accordingly. O-MTSs could better stabilize Pickering emulsions as an emulsifier compared to TSs. With the increase in the degree of substitution (DS) and concentration of the O-MTS, its emulsification index (EI) demonstrated an upward trend.
Keywords: turmeric starches; OSA-modified turmeric starches; degree of substitution; Pickering emulsions turmeric starches; OSA-modified turmeric starches; degree of substitution; Pickering emulsions
Graphical Abstract

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MDPI and ACS Style

Fu, L.; Chi, H.; Wei, H.; Huang, B.; Qiang, Y.; Shi, M.; Fang, L.; Fu, J. The Preparation, Properties, and Characterization of Octenyl Succinic Anhydride-Modified Turmeric Starches and Their Emulsification for Pickering Emulsions. Foods 2025, 14, 1171. https://doi.org/10.3390/foods14071171

AMA Style

Fu L, Chi H, Wei H, Huang B, Qiang Y, Shi M, Fang L, Fu J. The Preparation, Properties, and Characterization of Octenyl Succinic Anhydride-Modified Turmeric Starches and Their Emulsification for Pickering Emulsions. Foods. 2025; 14(7):1171. https://doi.org/10.3390/foods14071171

Chicago/Turabian Style

Fu, Lijuan, Hongfei Chi, Hang Wei, Biao Huang, Yueyue Qiang, Mengzhu Shi, Ling Fang, and Jianwei Fu. 2025. "The Preparation, Properties, and Characterization of Octenyl Succinic Anhydride-Modified Turmeric Starches and Their Emulsification for Pickering Emulsions" Foods 14, no. 7: 1171. https://doi.org/10.3390/foods14071171

APA Style

Fu, L., Chi, H., Wei, H., Huang, B., Qiang, Y., Shi, M., Fang, L., & Fu, J. (2025). The Preparation, Properties, and Characterization of Octenyl Succinic Anhydride-Modified Turmeric Starches and Their Emulsification for Pickering Emulsions. Foods, 14(7), 1171. https://doi.org/10.3390/foods14071171

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