Download Advances in Biochemical Engineering Biotechnology New by M. Berovic, B. Contreras, M. Dueser, N. Krieger, M. Menge, PDF

By M. Berovic, B. Contreras, M. Dueser, N. Krieger, M. Menge, D.A. Mitchel, J. Mukherjee, K.S.M.S. Raghavarao, E. Sablon, K. Schuegerl, P. Todd, E. Vandamme

A set of papers from scientists all over the global discussing the latest issues in engineering biotechnology, and similar chemistry, computing device technological know-how, and genetics functions.

Show description

Read or Download Advances in Biochemical Engineering Biotechnology New Products and New Areas of Bioprocess Engineering PDF

Similar chemistry books

Additional info for Advances in Biochemical Engineering Biotechnology New Products and New Areas of Bioprocess Engineering

Example text

In the lactococcin M operon, two bacteriocins (LcnM and LcnN) and one immunity protein (LciM) were found, displaying a low antagonistic activity against L. lactis indicator strains [46, 135]. In the lactococcin M operon, disruption of both lcnM and lcnN resulted in a non-producer phenotype. Therefore, 32 E. Sablon et al. Fig. 4. Representative class II non-lantibiotic bacteriocin operons. The class II non-lantibiotic bacteriocins include lactococcin A, B, M and G [46, 125, 126, 128, 135, 136], lactacin F [77], pediocin PA-1 and AcH [62, 130, 131], mesentericin Y105 [124], sakacin A [133] and plantaricin A [49, 134].

Lactis indicator strains. In the lactococcin M operon, two bacteriocins (LcnM and LcnN) and one immunity protein (LciM) were found, displaying a low antagonistic activity against L. lactis indicator strains [46, 135]. In the lactococcin M operon, disruption of both lcnM and lcnN resulted in a non-producer phenotype. Therefore, 32 E. Sablon et al. Fig. 4. Representative class II non-lantibiotic bacteriocin operons. The class II non-lantibiotic bacteriocins include lactococcin A, B, M and G [46, 125, 126, 128, 135, 136], lactacin F [77], pediocin PA-1 and AcH [62, 130, 131], mesentericin Y105 [124], sakacin A [133] and plantaricin A [49, 134].

The proteins that constitute the production and maturation machinery of class IIB bacteriocins do not differ significantly from the other class II bacteriocins, as deduced from the lactococcin M and G, and plantaricin A operons [127, 128, 134, 145]. 4 Immunity and Resistance Towards Bacteriocins Three important phenotypes can confer non-sensitivity to bacteriocins: (i) immunity is genetically linked with bacteriocin production and exerts the strongest level of non-sensitivity, (ii) resistance can occur as the appearance of spontaneous mutants following selection on the bacteriocin; and (iii) resistance conferred by a gene that is not genetically linked with bacteriocin production.

Download PDF sample

Rated 4.49 of 5 – based on 39 votes

Categories: Chemistry