Volume 76, Issue 3-4 2200275
Research Article

A Novel Acetylated Lotus Seed Starch: Preparation, Structural, and Physicochemical Properties

Yongjie Lin

Yongjie Lin

College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, 350002 China

Fujian Provincial Key Laboratory of Quality Science and Processing Technology in Special Starch, Fujian Agriculture and Forestry University, Fuzhou, 350002 China

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Yan Lin

Yan Lin

College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, 350002 China

Fujian Provincial Key Laboratory of Quality Science and Processing Technology in Special Starch, Fujian Agriculture and Forestry University, Fuzhou, 350002 China

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Zhiyun Wang

Zhiyun Wang

College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, 350002 China

Fujian Provincial Key Laboratory of Quality Science and Processing Technology in Special Starch, Fujian Agriculture and Forestry University, Fuzhou, 350002 China

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Yanbo Wang

Yanbo Wang

School of Food and Health, Beijing Technology and Business University, Beijing, 100048 China

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Yi Zhang

Yi Zhang

College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, 350002 China

Fujian Provincial Key Laboratory of Quality Science and Processing Technology in Special Starch, Fujian Agriculture and Forestry University, Fuzhou, 350002 China

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Baodong Zheng

Baodong Zheng

College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, 350002 China

Fujian Provincial Key Laboratory of Quality Science and Processing Technology in Special Starch, Fujian Agriculture and Forestry University, Fuzhou, 350002 China

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Hongliang Zeng

Corresponding Author

Hongliang Zeng

College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, 350002 China

Fujian Provincial Key Laboratory of Quality Science and Processing Technology in Special Starch, Fujian Agriculture and Forestry University, Fuzhou, 350002 China

E-mail: [email protected]

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First published: 16 April 2023

Abstract

The objectives of this study are to investigate the structural and physicochemical properties of a novel acetylated lotus seed starch (LSA). LSA is successfully prepared using an aqueous phase method. Fourier transform infrared spectroscopy (FTIR) proves that a carbonyl C=O vibration at 1737 cm−1 are due to the introduced acetyl groups. X-ray diffraction (XRD) indicates that the acetylation treatment does not change the crystal structure, but reduces the relative crystallinity of starch. Scanning electron microscopy (SEM) shows that the surface of LSA with 12% of acetic anhydride (LS-12A) becomes the roughest. Moreover, compared with lotus seed starch (LS), the particle size, transparency, swelling power, and solubility of LSA are increased to 18.01 ± 0.66 µm, 15.30% ± 0.30%, 9.59 ± 1.78 g g−1, and 6.06% ± 0.99% at 55 °C with the additional content of acetic anhydride. However, differential scanning calorimetry (DSC) shows that the melting enthalpy of LSA decreases compared with LS. This work provides some theoretical basis for the study and development of acetylated starch.

Conflict of Interest

The authors declare no conflict of interest.

Data Availability Statement

Research data are not shared.

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