Optimization of Seleno-chitosan-phytic acid nanocomplex for efficient removal of patulin from apple juice

Food Chem. 2024 Jun 15:443:138576. doi: 10.1016/j.foodchem.2024.138576. Epub 2024 Jan 29.

Abstract

A novel and effective adsorbent known as Seleno-chitosan-phytic acid nanocomplex (Se-CS-PA) has been developed specifically for efficiently removing patulin (PAT) from a simulated juice solution. The synthesis of Se-CS-PA nanocomplex was confirmed through Fourier transform infrared (FT-IR), scanning electron microscopy (SEM), and energy dispersive X-Ray (EDX) analyses. Response surface methodology (RSM) was employed using central composite design (CCD) to examine the impact of four independent variables (PA concentration, amount of nano-complex, duration of interaction between PAT and nano-complex, and initial concentration of PAT) on the removal of PAT. PA concentration of 0.1 % with 2.1 g Se-CS-PA nanocomplex according to RSM polynomial equation and apple juice with 25 μg.L-1 PAT yielded a remarkable adsorption rate of 94.23 % and 87.52 % respectively after 7 h. The process of PAT adsorption was explained using the pseudo-first-order model (R2 = 0.8858) for the kinetic model and the Freundlich isotherm (R2 = 0.9988) for the isotherm model.

Keywords: Chitosan; Isotherm; Kinetics; Nano-complex; Patulin; Phytic acid; Selenium.

MeSH terms

  • Adsorption
  • Chitosan*
  • Hydrogen-Ion Concentration
  • Kinetics
  • Malus*
  • Patulin* / analysis
  • Phytic Acid
  • Spectroscopy, Fourier Transform Infrared
  • Water Pollutants, Chemical* / analysis

Substances

  • Patulin
  • Phytic Acid
  • Chitosan
  • Water Pollutants, Chemical