Pediococcus characteristics

Eresh fruits are strongly recommended in the human diet since they are rich in vitamins, dietary fibres, minerals and antioxidants. In particular, sweet cherries contain remarkable contents of polyphenols, such as anthocyanins, which give them the characteristic colour and antioxidant properties. Fermentation can further enhance the antioxidant properties of sweet cherries. Sweet cherry Prunusavium L.) puree fermented by selected autochthonous lactic acid bacteria (L. plantarum, Pediococ-cus acidilactici, Pediococcus pentosaceus and Leuconostoc mesenteroides subsp. mesenteroides) at 25 C for 36h has been reported to exhibit significantly higher DPPH radical-scavenging capacity compared to unfermented sweet cherry puree (Cagno etal., 2011). 

Formation of carbon dioxide from glucose is characteristic of heterofer-mentative species (O. oeni and some Lactobacillus). Conversely, failure to produce CO2 from glucose indicates homofermentative utilization of the sugar and is suggestive of Pediococcus or some species of Lactobacillus. It must be noted that some Lactobacillus spp. are classified as being facultatively heterofermentative but hexoses (e.g., glucose) are utilized homofer-mentatively with no gas formation (Section 2.4.1). 

Characteristic Rods Carnobacterium Lactobacillus Cocci Enterococcus Lactococcus Vagococcus Leuconostoc Oenococcus Pediococcus Streptococcus Tetragenococcus Weissella ... 

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