Carbon dots in breadcrumbs: Effect of frying on them and interaction with human serum albumin

Jie Yin; Kunfeng Liu; Shaofeng Yuan; Yahui Guo; Hang Yu; Yuliang Cheng; Yunfei Xie; He Qian; Weirong Yao

doi:10.1016/j.foodchem.2023.136371

Carbon dots in breadcrumbs: Effect of frying on them and interaction with human serum albumin

Food Chem. 2023 Oct 30:424:136371. doi: 10.1016/j.foodchem.2023.136371. Epub 2023 May 16.

Authors

Jie Yin¹, Kunfeng Liu¹, Shaofeng Yuan¹, Yahui Guo¹, Hang Yu¹, Yuliang Cheng¹, Yunfei Xie¹, He Qian¹, Weirong Yao²

Affiliations

¹ State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, China.
² State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, China. Electronic address: yaoweirongcn@jiangnan.edu.cn.

PMID: 37210845
DOI: 10.1016/j.foodchem.2023.136371

Abstract

This research confirmed the existence of carbon dots (CDs) in breadcrumbs before frying, and CDs could be significantly affected by frying. The content of CDs increased from 0.013 ± 0.002% to 1.029 ± 0.002%, and the fluorescence quantum yield increased from 1.82 ± 0.01% to 3.16 ± 0.002% after frying at 180℃ for 5 min. The size reduced from 3.32 ± 0.71 nm to 2.67 ± 0.48 nm, and the content of N increased from 1.58% to 2.53%. In addition, the interaction of the CDs and human serum albumin (HSA) through electrostatic and hydrophobic induces the increase of α-helix structure and the change of the amino acid microenvironment of HSA. CDs corona, which may have physiological significance, was found through the transmission electron microscope.

Keywords: Breadcrumbs; CDs corona; Carbon dots; Frying; Human serum albumin.

MeSH terms

Bread
Carbon / chemistry
Fluorescence
Humans
Quantum Dots* / chemistry
Serum Albumin, Human* / chemistry
Spectrometry, Fluorescence
Triticum

Substances

Serum Albumin, Human
Carbon