Research Article

Production of β-galactosidase from new actinobacterial species

Volume: 12 Number: 4 December 5, 2025

Production of β-galactosidase from new actinobacterial species

Abstract

Streptomyces himalayensis 3K401, Jiangella aurantiaca 8K307T, and Jiangella ureilytica KC603T isolates were identified as potential β-galactosidase producers. The specific activities of the partially purified enzyme preparations were measured as 3.588 ± 0.00 U/mg protein, 1.320 ± 0.09 U/mg protein, and 1.262 ± 0.02 U/mg protein, respectively. The optimal operating conditions for β-galactosidase derived from S. himalayensis 3K401, J. aurantiaca 8K307T, and J. ureilytica KC603T were determined to be 40°C at pH 7.0, 50°C at pH 7.0, and 50°C at pH 9.0, respectively. Notably, all enzyme solutions retained activity at elevated temperatures (60–70°C). Comparative analysis revealed that β-galactosidases from Jiangella isolates exhibited greater thermal stability at 50°C and 60°C than the enzyme from S. himalayensis 3K401. This suggests that these enzymes could remain active following pasteurization at relatively high temperatures. Furthermore, enzyme solutions from Jiangella isolates demonstrated activity across a broad pH range, including acidic conditions (pH 4.0 and 5.0), which aligns with their potential application in the production of drinking milk. Additionally, the operational pH profiles of these enzymes, particularly their activity under neutral and alkaline conditions, highlight their potential utility in pharmacological applications beyond the food industry.

Keywords

References

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Details

Primary Language

English

Subjects

Enzymes

Journal Section

Research Article

Early Pub Date

September 1, 2025

Publication Date

December 5, 2025

Submission Date

January 16, 2025

Acceptance Date

July 5, 2025

Published in Issue

Year 2025 Volume: 12 Number: 4

APA
Karabacak, E. G., Adıguzel, A. O., Saygin, H., & Çon, A. H. (2025). Production of β-galactosidase from new actinobacterial species. International Journal of Secondary Metabolite, 12(4), 868-876. https://doi.org/10.21448/ijsm.1620801
AMA
1.Karabacak EG, Adıguzel AO, Saygin H, Çon AH. Production of β-galactosidase from new actinobacterial species. Int. J. Sec. Metabolite. 2025;12(4):868-876. doi:10.21448/ijsm.1620801
Chicago
Karabacak, Elif Gülşen, A. Osman Adıguzel, Hayrettin Saygin, and Ahmet Hilmi Çon. 2025. “Production of β-Galactosidase from New Actinobacterial Species”. International Journal of Secondary Metabolite 12 (4): 868-76. https://doi.org/10.21448/ijsm.1620801.
EndNote
Karabacak EG, Adıguzel AO, Saygin H, Çon AH (December 1, 2025) Production of β-galactosidase from new actinobacterial species. International Journal of Secondary Metabolite 12 4 868–876.
IEEE
[1]E. G. Karabacak, A. O. Adıguzel, H. Saygin, and A. H. Çon, “Production of β-galactosidase from new actinobacterial species”, Int. J. Sec. Metabolite, vol. 12, no. 4, pp. 868–876, Dec. 2025, doi: 10.21448/ijsm.1620801.
ISNAD
Karabacak, Elif Gülşen - Adıguzel, A. Osman - Saygin, Hayrettin - Çon, Ahmet Hilmi. “Production of β-Galactosidase from New Actinobacterial Species”. International Journal of Secondary Metabolite 12/4 (December 1, 2025): 868-876. https://doi.org/10.21448/ijsm.1620801.
JAMA
1.Karabacak EG, Adıguzel AO, Saygin H, Çon AH. Production of β-galactosidase from new actinobacterial species. Int. J. Sec. Metabolite. 2025;12:868–876.
MLA
Karabacak, Elif Gülşen, et al. “Production of β-Galactosidase from New Actinobacterial Species”. International Journal of Secondary Metabolite, vol. 12, no. 4, Dec. 2025, pp. 868-76, doi:10.21448/ijsm.1620801.
Vancouver
1.Elif Gülşen Karabacak, A. Osman Adıguzel, Hayrettin Saygin, Ahmet Hilmi Çon. Production of β-galactosidase from new actinobacterial species. Int. J. Sec. Metabolite. 2025 Dec. 1;12(4):868-76. doi:10.21448/ijsm.1620801
International Journal of Secondary Metabolite

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