Ukuku has been working with nisin
since the early 1990s, but he only recently found that combining it with EDTA--a common preservative used in processed foods and soft drinks--and with certain GRAS organic acids produces a wash that curbs both Gram-positive bacteria (such as Listeria) and Gram-negative ones (such as Salmonella and E.
Geobacillin is more stable, both in respect to pH and temperature, than nisin
What makes this particularly good news is that the Food and Drug Administration and the World Health Organization approved nisin
as safe for human consumption decades ago, says Yvonne Kapila, the study's principal investigator and professor at the University of Michigan School of Dentistry.
There is renewed interest in the use of nisin
in natural cheese production.
2002a, "Modelling the influence of pH on the kinetics of both nisin
and pediocin production and characterization of their functional properties," Process Biochem.
Few such molecules are SsALF24, isolated from the hemocytes of Indian mud crab Scylla serrata; RVF[alpha]HbP isolated from rabbit vaginal fluid; magainin isolated from frog skin; nisin
, a naturally occurring food preservative and the niscar gel (a combination of nisin
A number of effective combinations have been developed as general biocides, such as nisin
and garlic or phenolic compounds (Adams 2003), sorbates with vanillin or citral (Alzamora and Guerrero 2003), chitosan with an antagonistic yeast (El-Ghaouth et al.
Enhancement of antilisterial activity of essentials oil constituents by nisin
and diglycerol fatty acid ester.
These were maltol and ethyl maltol, nisin
, pectins, polyvinyl alcohol and sucrose esters of fatty acids.
, Consultant I have been reading Gulf News for the past 16 years.
of Massachusetts) and Gillor (environmental hydrology and microbiology, Ben Gurion U, of the Negev), cover the latest research in bacteriocin structure and function and their means of biosynthesis, genetically modified bacteriocins, potential applications, cytotoxic activity of bacteriocin against eukaryotic cells, Streptococcus mutans and their uses in the treatment of dental caries and as antibiotics, the use of bacteriocins in livestock and the food industry, and the past, present and future of Nisin
Mutacin 1140 and nisin
A, are posttranslationally modified peptide antibiotics belonging to a family of antibiotics called type A lantibiotics (lanthionine-containing antibiotics).