REAL

Superoxide dismutase activity in various fractions of full bovine milk

Filipović, D. and Kasapović, J. and Pejić, S. and Nićiforović, A. and Pajović, S. B. and Radojčić, M. B. (2005) Superoxide dismutase activity in various fractions of full bovine milk. Acta Alimentaria, 34 (3). pp. 219-226. ISSN 0139-3006

[img] Text
aalim.34.2005.3.3.pdf
Restricted to Repository staff only until 30 September 2025.

Download (741kB)

Abstract

Specific composition, protein profiles and total SOD activity were analysed in full milk samples obtained from five farms of the Milk Company IMPAZ. The effects of several laboratory treatments on milk proteins SDS-PAGE profiles and the respective SOD activity were also followed. The total SOD activity was detected in all full milk samples, and its values varied between 2 and 3 U mg-1 protein. The enzyme could be partially purified, up to »5 U mg-1 protein, by ethanol extraction. The recovered SOD activity in ethanol extract was proportional to the initial full milk SOD activity. The disruption of casein micelles by Ca2+ removal was followed by a significant decrease in SOD activity to 1.24-0.18 U mg-1 protein. The loss of enzyme activity was ascribed to the changes in milk milieu induced by dissociation of casein micelles.

Item Type: Article
Subjects: Q Science / természettudomány > QD Chemistry / kémia > QD01 Analytical chemistry / analitikai kémia
Depositing User: xKatalin xBarta
Date Deposited: 14 Feb 2017 14:39
Last Modified: 14 Feb 2017 14:39
URI: http://real.mtak.hu/id/eprint/48875

Actions (login required)

Edit Item Edit Item