Sorry, you need to enable JavaScript to visit this website.
Skip to main content
ملخص البحث

The study reported in this research communication evaluates the chemical (solvents) and mechanical (sonication, bead-beater) extraction methods to determine the maximum recovery of β-galactosidase from L. bulgaricus spp. Among all extraction techniques, sonication-assisted extraction yielded the highest amounts of enzyme activity (between 1892-2156 Miller Units) in cell-free extract (supernatant). Interestingly, solvent extracted enzyme activities were found to be very low (between 83-153 Miller Units) in supernatant. SDS-polyacrylamide gel electrophoresis and the total protein determination showed that mechanical methods can completely lyse the cells. Our results thus demonstrated that the mechanical extraction method of sonication is the best one for recovering the maximum amount of lactase from L. bulgaricus strains.

Exercise Physiology
Rabin Gyawali, Ayowole Oyeniran ,Tahl Zimmerman , Sulaiman O Aljaloud, Albert Krastanov , Salam A Ibrahim
Cambridge University Press /Journal of Dairy Research,vol 87(1) ,123-126
سنة النشر
PMID: 32008592 DOI: 10.1017/S0022029919001031
بلد النشر
United Kingdom
الكلمات المفتاحية
Cell lysis; L. bulgaricus; enzyme extraction; lactase; β-galactosidase.
Last updated on : January 12, 2023 1:13am