Thanks to visit codestin.com
Credit goes to link.springer.com

Skip to main content
Log in

Characterisation of a potential probiotic strain Paracoccus marcusii KGP and its application in whey bioremediation

  • Original Article
  • Published:
Folia Microbiologica Aims and scope Submit manuscript

Abstract

Whey, the main by-product obtained from the manufacture of cheese, which contains a very high organic load (mainly due to the lactose content), is not easily degradable and creates concern over environmental issues. Hydrolysis of lactose present in whey and conversion of whey lactose into valuable products such as bioethanol, sweet syrup, and animal feed offers the possibility of whey bioremediation. The increasing need for bioremediation in the dairy industry has compelled researchers to search for a novel source of β-galactosidase with diverse properties. In the present study, the bacterium Paracoccus marcusii KGP producing β-galactosidase was subjected to morphological, biochemical, and probiotic characterisation. The bacterial isolate was found to be non-pathogenic and resistant to low pH (3 and 4), bile salts (0.2%), salt (10%), pepsin (at pH 3), and pancreatin (at pH 8). Further characterisation revealed that the bacteria have a good auto-aggregation ability (40% at 24 h), higher hydrophobicity (chloroform-60%, xylene-50%, and ethyl acetate-40%) and a broad spectrum of antibiotic susceptibility. The highest growth of P. marcusii KGP was achieved at pH 7 and 28 °C, and the yeast extract, galactose, and MgSO4 were the best for the growth of the bacterial cells. The bacterium KGP was able to utilise whey as a substrate for its growth with good β-galactosidase production potential. Furthermore, the β-galactosidase extracted from the isolate KGP could hydrolyse 47% whey lactose efficiently at 50 °C. The study thus reveals the potential application of β-galactosidase from P. marcusii KGP in whey bioremediation.

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

Access this article

Subscribe and save

Springer+
from £29.99 /Month
  • Starting from 10 chapters or articles per month
  • Access and download chapters and articles from more than 300k books and 2,500 journals
  • Cancel anytime
View plans

Buy Now

Price includes VAT (United Kingdom)

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6

Similar content being viewed by others

References

Download references

Acknowledgements

The authors would like to thank the Vellore Institute of Technology for providing the necessary facilities to carry out the present research work. The authors also like to acknowledge Dr. Krishnakanth Pulicherla, Scientist D, DST, and Mr. Avtar Sain for assisting in the project.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Gothandam Kodiveri Muthukaliannan.

Ethics declarations

Human and animal rights and informed consent

This article does not contain any studies with human or animal subjects.

Conflict of interest

The authors declare no competing interests.

Additional information

Publisher's Note

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

Supplementary information

Below is the link to the electronic supplementary material.

Supplementary file1 (TIF 799 KB)

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Kalathinathan, P., Kodiveri Muthukaliannan, G. Characterisation of a potential probiotic strain Paracoccus marcusii KGP and its application in whey bioremediation. Folia Microbiol 66, 819–830 (2021). https://doi.org/10.1007/s12223-021-00886-w

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue date:

  • DOI: https://doi.org/10.1007/s12223-021-00886-w

Profiles

  1. Gothandam Kodiveri Muthukaliannan