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Updated: Sep 21, 2025
Mechanical Separation and Protein Solubilization of the Outer and Inner Perivitelline Sublayers from Hen's Eggs
Published on: January 27, 2021
Adsorption of deoxynivalenol by APTS-TEOS modified eggshell powder
Chongqi Zhao1, Zhuo Zhang1, Qiuchun Deng1
1Animal Nutritional Genome and Germplasm Innovation Research Center, College of Animal Science and Technology, Hunan Agricultural University, Changsha, Hunan 410128, China.
Abstract:
Deoxynivalenol (DON) is widely contaminated in foods and feeds, which greatly threatens human and animal health. Due to its stable physicochemical properties, DON can be hardly eliminated by heating or ultraviolet radiation. In the present study, the biowaste eggshells were firstly modified into effective DON adsorbents, which are ATPS (triethoxysilane) + TEOS (aminopropyl triethoxysilane) modified 500 °C/700 °C-calcined eggshell powders under acetic/propionic acid-catalyzation (500-CSAE, 500-CSPE, 700-CSAE, 700-CSPE). The adsorption rates of DON on the raw eggshell powder, 500-CSAE, 500-CSPE, 700-CSAE, and 700-CSPE in acidity-adjusted buffer solution were 14.6%, 53.0%, 47.8%, 29.9%, and 31.2%, respectively. Characteristic analysis implied that the mesopore structures and enriched Si-OH groups in the modified eggshell powders are involved in DON adsorption. Besides, 500-CSAE, 500-CSPE, and 700-CSPE were verified to numerically alleviate the viability loss of IPEC-J2 cells caused by DON. In conclusion, the novel modified eggshell powders exhibit great application prospects for DON control in foods and feeds.
