Food microbiology: Bacteriocins: developing innate immunity for food
Bacteriocins are bacterially produced antimicrobial peptides with narrow or broad host ranges that can be used to confer a rudimentary form of innate immunity to foodstuffs, helping processors extend their control over the food flora long after manufacture.
Gut microbiota composition correlates with diet and health in the elderly
The data support a relationship between diet, microbiota and health status, and indicate a role for diet-driven microbiota alterations in varying rates of health decline upon ageing.
Bacteriocins — a viable alternative to antibiotics?
Although the application of specific bacteriocins might be curtailed by the development of resistance, an understanding of the mechanisms by which such resistance could emerge will enable researchers to develop strategies to minimize this potential problem.
Exercise and associated dietary extremes impact on gut microbial diversity
Evidence is provided for a beneficial impact of exercise on gut microbiota diversity but also indicate that the relationship is complex and is related to accompanying dietary extremes.
Fatty acids from fish: the anti-inflammatory potential of long-chain omega-3 fatty acids.
Research has shown that reductions may be achieved in the incidence of many chronic diseases that involve inflammatory processes; most notably, these include cardiovascular diseases, inflammatory bowel disease (IBD), cancer, and rheumatoid arthritis, but psychiatric and neurodegenerative illnesses are other examples.
Composition, variability, and temporal stability of the intestinal microbiota of the elderly
- M. Claesson, S. Cusack, P. O’Toole
- BiologyProceedings of the National Academy of Sciences
- 22 June 2010
It is concluded that the fecal microbiota of the elderly shows temporal stability over limited time in the majority of subjects but is characterized by unusual phylum proportions and extreme variability.
Lantibiotics: structure, biosynthesis and mode of action.
Some of the more recent developments in the biochemistry, genetics and mechanism of action of the lantibiotic peptides are outlined.
Ribosomally synthesized and post-translationally modified peptide natural products: overview and recommendations for a universal nomenclature.
This review presents recommended nomenclature for the biosynthesis of ribosomally synthesized and post-translationally modified peptides (RiPPs), a rapidly growing class of natural products. The…
The complex microbiota of raw milk.
There is concern that the presence of antibiotic residues in milk leads to the development of resistance, particularly among pathogenic bacteria, and the approaches, both culture-dependent and culture-independent, which can be taken to investigate the microbial composition of milk are compared.
Comparative Analysis of Pyrosequencing and a Phylogenetic Microarray for Exploring Microbial Community Structures in the Human Distal Intestine
This is the deepest sequencing of single gastrointestinal samples reported to date, but microbial richness levels have still not leveled out, and correlations of sequence abundance and hybridization signal intensities were very high for lower-order ranks, but lower at family-level, which was probably due to ambiguous taxonomic groupings.