Food and Fermentation Industries >

2023 , Vol. 49 >Issue 24: 37 - 43

DOI: https://doi.org/10.13995/j.cnki.11-1802/ts.034919

Synthesis of nano-MgO positively charged inorganic ceramic membrane and electrostatic adsorption for ochratoxin A in grape juice

  • NAN Mina ,
  • XIN Xueyan ,
  • XUE Huali
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  • 1(Laboratory and Practice Base Management Center, Gansu Agricultural University, Lanzhou 730070, China)
    2(College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, China)

Received date: 2023-01-17

  Revised date: 2023-02-17

  Online published: 2024-01-17

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Abstract

Ochratoxin A (OTA) is an important mycotoxin that widely exists in grape products, especially in wine and grape juice. The traditional physical removal methods for OTA are limited by single material, difficult removal of adsorbents, and affecting the nutritional quality. Nano-MgO positively charged inorganic ceramic membrane was prepared by impregnation-thermal decomposition with urea, MgCl2·6H2O and dispersant, and the optimal conditions for OTA adsorption were tested. Nano-MgO positively charged inorganic ceramic membrane was applied to remove OTA in grape juice, and the quality and flavor changes of grape juice were also analyzed. The results showed that nano-MgO cubes increased specific surface area and changed the electric properties of the ceramic membrane. The removal rate of OTA in grape juice was over 91%, and the overall nutritional quality and aroma substances of grape juice was preserved.

Key words： positively charged inorganic ceramic membrane; ochratoxin A; adsorption; nutritional quality

Cite this article

NAN Mina , XIN Xueyan , XUE Huali . Synthesis of nano-MgO positively charged inorganic ceramic membrane and electrostatic adsorption for ochratoxin A in grape juice[J]. Food and Fermentation Industries, 2023 , 49(24) : 37 -43 . DOI: 10.13995/j.cnki.11-1802/ts.034919

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