Researchers have discovered Cronobacter in samples of nuts, seeds and dried fruit in Poland.
The examine decided the microbiological high quality of business ready-to-eat meals merchandise of plant origin with a give attention to Cronobacter.
Analyses had been carried out on 64 samples of nuts, dried fruits, candied fruits, seeds, and mixes of seeds, dried fruits and nuts. Samples had been examined for the full plate rely of micro organism (TPC), counts of yeasts and molds, and the incidence of Cronobacter.
Cronobacter display a spread of properties which allow survival in varied meals merchandise and permit them to adapt to a altering atmosphere in the course of the manufacturing course of, based on the examine revealed within the journal Pathogens.
TPC, yeast and mildew
The extent of TPC in nuts is believed to be an indicator of postharvest contamination of those merchandise. TPC weren’t present in samples of seeds and candied fruits.
5 samples, together with dried fruits, seeds and mixes of dried fruits, nuts and seeds, had extreme counts of mildew based mostly on worldwide pointers however yeast ranges had been passable and never detected in seeds and candied fruits.
Samples had been purchased in Warsaw, Poland, at totally different supermarkets, from September 2018 to February 2019. They got here from seven producers.
The 20 nut samples included Italian and Brazil nuts, hazelnuts, almonds, pecans, cashews, pine nuts and macadamias. The 24 samples of dried fruit had been prunes, raisins, cherries, bitter cherries, figs, bananas, dates, apricots, blackcurrants, cranberries, goji and chia berries.
Eight samples had been candied fruit like mango, pineapple, jackfruit, plums, and keenness fruit. One other eight had been mixes in varied proportions of raisins, dried cranberries, walnuts, hazelnuts, cashews, almonds, and sunflower seeds. 4 had been samples of sunflower and pumpkin seeds.
There aren’t any laws for Cronobacter in foodstuffs aside from powdered toddler formulation.
Ten samples of nuts and two mixes had been contaminated with Cronobacter. It was not detected in dried or candied fruits, and seeds. The prevalence of Cronobacter in nuts and in mixes of dried fruits, seeds and nuts accounted for 50 p.c and 25 p.c respectively.
Three Cronobacter species had been remoted from nuts and mixes of nuts, dried fruits and seeds.
Presence of Cronobacter sakazakii was confirmed in some Brazil nut samples and sure mixes of dried fruits, seeds and nuts. Cronobacter turicensis was detected in 20 p.c of almonds and hazelnuts. Cronobacter malonaticus was present in 20 p.c of hazelnuts, cashews, pine nuts and macadamias and in 12.5 p.c of the samples of mixes of dried fruits, seeds and nuts.
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