Effect of atmospheric pressure plasma jet on the structure and physicochemical properties of wheat starch

Hongfang Ji; Dandan Li; Lingwen Zhang; Manjie Li; Hanjun Ma

doi:10.3389/fnut.2024.1386778

Effect of atmospheric pressure plasma jet on the structure and physicochemical properties of wheat starch

Front Nutr. 2024 May 3:11:1386778. doi: 10.3389/fnut.2024.1386778. eCollection 2024.

Authors

Hongfang Ji^{1

2}, Dandan Li¹, Lingwen Zhang¹, Manjie Li¹, Hanjun Ma^{1

2}

Affiliations

¹ School of Food Science, Henan Institute of Science and Technology, Xinxiang, China.
² National Pork Processing Technology Research and Development Professional Center, Xinxiang, China.

Abstract

The effect of atmospheric pressure plasma jet (APPJ) with different discharge power (0, 400, 600, and 800 W) on the structure and physicochemical properties of wheat starch were evaluated in this study. After APPJ treatments, significant declines in peak viscosity, breakdown viscosity, and final viscosity of wheat starch pasting parameters were observed with increase of plasma treatment power. Being treated with discharge power of 800 W, the PV and BD value of wheat starch paste significantly dropped to 2,578 and 331 cP, respectively. Apparently, APPJ could raise the solubility of wheat starch, while reduce the swelling capacity, and also lower the G' and G″ value of wheat starch gel. Roughness and apparent scratch was observed on the surface of the treated wheat starch granules. Although APPJ treatment did not alter wheat starch's crystallization type, it abated the relative crystallinity. APPJ treatment might be useful in producing modified wheat starch with lower viscosity and higher solubility.

Keywords: atmospheric pressure plasma jet; discharge power; physicochemical properties; structure; wheat starch.

Grants and funding

The author(s) declare that financial support was received for the research, authorship, and/or publication of this article. This research was supported by the Scientific and Technological Projects of Henan Province (No. 222102110085 and 212102110084) and the Major Science and Technology Project of Henan Province (No. 221100110500).