Effect of atmospheric cold plasma on structure, activity, and reversible assembly of the phytoferritin

Food Chemistry
Rui YangZhongkai Zhou

Abstract

Ferritin is characterized by a shell-like structure and a reversible self-assembly property. In this study, atmospheric cold plasma (ACP) was applied to red bean seed ferritin (RBF) to prepare an ACP-treated RBF (ACPF). Results indicated that the ACP treatment retained the shell-like structure of ferritin but reduced the α-helix/β-sheet contents and thermal stability. Iron oxidative deposition and release activities were also markedly changed. The ACPF could be disassembled at pH 4.0 and then assembled into an intact ferritin cage when pH was increased to 7.0, which was a more benign transition condition than that of the traditional method (pH 2.0/7.0 transition). By using this assembly routine, curcumin was successfully encapsulated within the ACPF with a size distribution of 12 nm. Moreover, the encapsulation ratio of curcumin in the ACPF reached 12.7% (w/w). This finding can be used to expand the application of ACP and improve the functionalization of the ferritin.

Citations

Jun 6, 2020·Food Science and Technology International = Ciencia Y Tecnología De Los Alimentos Internacional·Sachin K SonawaneSonal Patil
Aug 21, 2021·Accounts of Chemical Research·Ningning SongMinmin Liang
Aug 18, 2021·Food Research International·Solmaz SaremnezhadAli Adnan Hayaloglu
Jun 18, 2020·Journal of Agricultural and Food Chemistry·Demei MengRui Yang

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