Physicochemical Quality and Microbial Activity of Dairy Milk with Ozonation

Authors

  • Dodik Suprapto National Animal Husbandry Training Center, Batu, 65312, Indonesia
  • Lilik Eka Radiati Departement of Animal Product Technology, Faculty of Animal Science, Universitas Brawijaya, Malang, 65145, Indonesia
  • Chanif Mahdi Departement of Animal Product Technology, Faculty of Animal Science, Universitas Brawijaya, Malang, 65145, Indonesia
  • Herly Evanuarini Departement of Animal Product Technology, Faculty of Animal Science, Universitas Brawijaya, Malang, 65145, Indonesia

DOI:

https://doi.org/10.21776/ub.jitek.2021.016.02.5

Keywords:

Electrical resistance, malondialdehyde, milk ingredient, ozone, total plate count.

Abstract

The aim of this study was to evaluate the effect of ozone exposure to the physicochemical and microbial activity in dairy milk. The research material was fresh milk from dairy cows and ozone was produced by commercial ozone generator brand HANACO, production capacity up to 0.702 mg/min at 24-27ºC with oxygen source coming from ambient air in the nature. The experiment used ozone treatments for 0, 10, 20, and 30 min with variable of analysis such as density, protein, fat, electrical resistance, total plate count, and malondialdehyde which was analyzed using One Way Annova. The results showed that ozone treatment had no significant effect on the density, protein and fat in dairy milk, but had significant (P<0.05) effect on the electrical resistance, total plate count, and production of malondialdehyde. Electrical resistance and malondialdehyde were increased, while total plate count was decreased over time with the ozone exposure. Ozonation is possible to reducing yield loss on milk production that is caused by microbial activity without changing the physicochemical properties of dairy milk.

Downloads

Published

2021-07-15

Issue

Vol. 16 No. 2 (2021)

Section

Articles

License

Copyright (c) 2021 Dodik Suprapto, Lilik Eka Radiati, Chanif Mahdi, Herly Evanuarini

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

Authors who publish with this journal agree to the following terms:

    1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
    2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
    3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).