nisin

The problem with commercial nisin is that it's cut with milk.

Archive 2006-01-01 Steve Carper 2006

The problem with commercial nisin is that it's cut with milk.

Nisin. The Milk Derivative You've Never Heard Of Steve Carper 2006

Certain lactic bacteria (notably, Streptococcus lactis) produce the antibiotic nisin, active against gram-positive organisms.

Chapter 25 1996

Streptococcus lactis produces the polypeptide antibiotic nisin, active against gram-positive organisms, including S. cremoris, which in turn produces the antibiotic diplococcin, active against gram-positive organisms such as S. lactis.

1 Upgrading Traditional Biotechnological Processes 1992

In the presence of NP4P, some membrane-disrupting antimicrobial peptides (ASABF-alpha, polymyxin B, and nisin) killed microbes at lower concentration (e.g., 10 times lower minimum bactericidal concentration for ASABF-aplha against Staphylococcus aureus), whereas NP4P itself was not bactericidal and did not interfere with bacterial growth at [less than or equal to] 300 mug/mL.

BioMed Central - Latest articles 2010

Regarding in-depth inoculated cheese samples, antimicrobial effectiveness was found to be dependent on the distance from the contact surface with the films containing nisin to the cheese matrix, they found.

DairyReporter RSS jane.byrne@decisionnews.com 2010

Lactococcus lactis, and is the only bacteriocin recognized as safe by the World Health Organization (WHO) for use within food production, and the authors said that it exhibits antimicrobial activity toward a wide range of Gram-positive bacteria, nisin was incorporated into sorbitol-plasticized sodium caseinate films at 1000 IU/cm2 and the films were prepared by casting methods.

DairyReporter RSS jane.byrne@decisionnews.com 2010

Further research, said the authors, might focus on producing active films with higher nisin concentration and also evaluate the effectiveness of the antimicrobial films for a longer storage period to determine the maximum food shelf life extension as well as the efficiency against other undesirable microorganisms such as mould and yeast.

DairyReporter RSS jane.byrne@decisionnews.com 2010

The pectin used here was purchased from Danisco, as was the nisin used in the project.

FoodQualityNews RSS 2009

Pectin, said the ARS team, is a water soluble hygroscopic polymer, and has been used as a thickening, coating and encapsulating material; the scientists claim that relatively few studies have reported on the use of pectin, alone or in combination with PLA as a base packaging material and as a carrier for nisin for antimicrobial food packaging.

FoodQualityNews RSS 2009