Skip to main content
Log in

Three-dimensional magnetic enzyme-inorganic hybrid nanocomplexes with high reusability and stability to obtain lactose-free products

  • Original Paper
  • Published:
Chemical Papers Aims and scope Submit manuscript

Abstract

Multitudinous people suffer from lactose intolerance which is bound up with lactose malabsorption. Enzymatic hydrolysis is the most common approach for the preparation of lactose-free products. The recycling of hydrolytic enzymes is an effective way to produce low-cost lactose-free products. Herein, a facile strategy for the preparation of the novel Fe3O4 magnetic nanoparticles-β-galactosidase-CaHPO4 hybrid nanocomplexes (β-gal MNCs) was established. β-gal MNCs were composed of amino-modified Fe3O4 magnetic nanoparticles, β-galactosidase and crystalline calcium hydrogen phosphates. Meanwhile, under the external magnetic field, the magnetic β-gal MNCs can be easily and rapidly separated from the reaction medium. In addition, the β-galactosidase maintained most of its initial activity after immobilization into the β-gal MNCs. In a continuous hydrolysis reaction, β-gal MNCs exhibited excellent reusability and good stability. Therefore, β-gal MNCs hold promising prospects in the fast and low-cost preparation of lactose-free milk.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Scheme 1
Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8

Similar content being viewed by others

References

Download references

Acknowledgements

This research was supported by the National Natural Science Foundation of China (21974101).

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Zhi-Ke He.

Additional information

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Yi, F., Liu, YC., Yang, YJ. et al. Three-dimensional magnetic enzyme-inorganic hybrid nanocomplexes with high reusability and stability to obtain lactose-free products. Chem. Pap. 75, 5353–5362 (2021). https://doi.org/10.1007/s11696-021-01726-4

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11696-021-01726-4

Keywords

Navigation