Issue 3, 2019

Effect of calcium chloride on the uniformity of colouring in sushi red ginger slices by modulating the properties of starch

Abstract

The colour of sushi red ginger slices without blanching is not uniform, which seriously affects their sensory quality. The effect of calcium chloride (CaCl2) pretreatment on the uniformity of colouring and the properties of ginger starch have been studied. The crystalline region of the starch in blanched ginger slices was broken, which might be beneficial for uniform colouring. The effect of CaCl2 pretreatment on starch properties depended on the concentration. The influence of CaCl2 at a concentration higher than 3.5 mol Lāˆ’1 was more pronounced than that at a lower concentration. The uniformity of colouring was close to the effect of blanching treatment. Furthermore, the starch crystallization was destroyed, the granules were broken, and the polarized cross disappeared, which was consistent with that observed for the starch in blanched ginger slices. Therefore, it is possible to achieve a uniform colour in red ginger slices at room temperature through CaCl2 pretreatment.

Graphical abstract: Effect of calcium chloride on the uniformity of colouring in sushi red ginger slices by modulating the properties of starch

Article information

Article type
Paper
Submitted
31 Oct 2018
Accepted
22 Dec 2018
First published
14 Jan 2019
This article is Open Access
Creative Commons BY license

RSC Adv., 2019,9, 1664-1670

Effect of calcium chloride on the uniformity of colouring in sushi red ginger slices by modulating the properties of starch

L. Jiao, S. Xia, X. Zhang, J. Liu, J. Yu, M. Zhang, X. Wang and X. Qi, RSC Adv., 2019, 9, 1664 DOI: 10.1039/C8RA09025D

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

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