Results 211 to 220 of about 54,550 (246)

Microencapsulation of Lactococcus lactis subsp. cremoris

Journal of Microencapsulation, 1994
Lactococcus lactis subsp. cremoris was microencapsulated within alginate/poly-L-lysine (alg/PLL), nylon or crosslinked polyethyleneimine (PEI) membranes. Toxic effects were observed with solvents and reagents used in nylon and PEI membrane formation. Alg/PLL encapsulation resulted in viable and active cell preparations which acidified milk at a rate ...
B C, Larisch, D, Poncelet, C P, Champagne, R J, Neufeld   +3 more
openaire   +2 more sources

Heterologous Protein Expression by Lactococcus lactis

2011
This chapter describes the use of Lactococcus lactis as a safe and efficient cell factory to produce heterologous proteins of medical interest. The relevance of the use of this lactic acid bacterium (LAB) is that it is a noncolonizing, nonpathogenic microorganism that can be delivered in vivo at a mucosal level. The use of strains of L.
Villatoro-Hernández, J., Kuipers, O. P., Saucedo-Cárdenas, O., Montes-de-Oca-Luna, R.   +3 more
openaire   +3 more sources

Physiology of pyruvate metabolism in Lactococcus lactis

Antonie van Leeuwenhoek, 1996
Lactococcus lactis, a homofermentative lactic acid bacterium, has been studied extensively over several decades to obtain sometimes conflicting concepts relating to the growth behaviour. In this review some of the data will be examined with respect to pyruvate metabolism.
Cocaign-Bousquet, M., Garrigues, Chloé, Loubière, Pascal, Lindley, N.D.   +3 more
openaire   +3 more sources

Membrane Protein Expression in Lactococcus lactis

2009
Membrane proteins play key roles in cellular physiology, and they are important drug targets. Approximately 25% of all genes identified in sequenced genomes are known to encode membrane proteins; however, the majority have no assigned function. Although the resolution of soluble protein structure has entered the high-throughput stage, only 100 high ...
Frelet-Barrand, Annie, Boutigny, Sylvain, Kunji, Edmund R S, Rolland, Norbert   +3 more
openaire   +4 more sources

Dynamics of pyruvate metabolism in Lactococcus lactis

Biotechnology and Bioengineering, 2001
AbstractThe pyruvate metabolism in the lactic acid bacterium Lactococcus lactis was studied in anaerobic cultures under transient conditions. During growth of L. lactis in continuous culture at high dilution rate, homolactic product formation was observed, i.e., lactate was produced as the major end product.
C R, Melchiorsen, N B, Jensen, B, Christensen, K, Vaever Jokumsen, J, Villadsen   +4 more
openaire   +2 more sources

Phages of Lactococcus lactis

2005
Abstract Lactococci are Gram-positive mesophilic bacteria with low G-C content that belong to the group of lactic acid bacteria. They are aerotolerant and live by means of fermentation, as they are lacking a respiratory chain, and the main end product during fermentation is lactic acid.
openaire   +1 more source

Membrane Protein Expression in Lactococcus lactis

2015
The Gram-positive bacterium Lactococcus lactis has many properties that are ideal for the overproduction of membrane proteins in a functional form. Growth of lactococci is rapid, proceeds to high cell densities, and does not require aeration, which facilitates large-scale fermentation.
Martin S, King, Christoph, Boes, Edmund R S, Kunji   +2 more
openaire   +2 more sources

Regulation of proteinase synthesis in Lactococcus lactis

Acta Biotechnologica, 1993
AbstractThe synthesis of extracellular serine proteinase of Lactococcus lactis was studied during the growth in a batch and a continuous culture on chemically defined media. In a batch culture the proteinase synthesis started during the exponential phase of growth and the highest proteinase concentrations were found at the end of the exponential and ...
Laan, H., Bolhuis, H., Poolman, B., Abee, T., Konings, W.N.   +4 more
openaire   +3 more sources

Optimization of Nisin Production by Lactococcus lactis

2002
The production of nisin by batch culture of Lactococcus lactis ATCC 11454 in MRS broth (pH 6.5), as treated in 30 assays, that were set up by a fractional factorial design of two levels (2[4-1]), was improved. The minimum and maximum concentrations of sucrose (5.0-12.5 g/L), asparagine (7.5-75 g/L), potassium phosphate (6.0-18.0 g/L), and Tween-80 (1.0-
Thereza Christina Vessoni, Penna, Dante Augusto, Moraes   +1 more
openaire   +2 more sources

Bacteriocins Produced By Lactococcus Lactis Strains

1994
The ability of some lactococci to produce inhibitory substances other than organic acids has been known for quite some time. These substances include the well-known bacteriocins nisin (Hurst, 1981; Rayman & Hurst, 1984) and diplococcin (Davey & Pearce, 1982), the lactostrepcins (Kozak et al., 1978) and lactococcins (Van Belkum et al., 1989, 1991, 1992)
openaire   +2 more sources