2016
DOI: 10.1002/jsfa.8120
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Sakacin‐A antimicrobial packaging for decreasing Listeria contamination in thin‐cut meat: preliminary assessment

Abstract: BACKGROUNDMinimally processed ready‐to‐eat products are considered a high‐risk food because of the possibility of contamination with pathogenic bacteria, including Listeria monocytogenes from the animal reservoir, and the minimal processing they undergo. In this study, a sakacin‐A anti‐Listeria active package was developed and tested on thin‐cut veal meat slices (carpaccio).RESULTSEnriched food‐grade sakacin‐A was obtained from a cell‐free supernatant of a Lactobacillus sakei culture and applied (0.63 mg cm−2)… Show more

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Cited by 19 publications
(15 citation statements)
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“…As regards sakacin‐A purification, in the present article an ammonium sulfate precipitation was applied to the culture supernatant, allowing an enriched bacteriocin extract containing 16.7 AU mg ‐1 of the active compound to be obtained, with a total activity yield of 25%. Purification is an essential step for bacteriocin applications but also represents a time‐consuming and a low‐yield step of the entire production process, as confirmed by the obtained data . Barbiroli et al reported on sakacin‐A purification from a food‐grade medium by one‐step diafiltration, giving a freeze‐dried enriched sakacin‐A with an antimicrobial titer of 1.36 AU mg ‐1 and a total activity yield of 20%.…”
Section: Discussionsupporting
confidence: 52%
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“…As regards sakacin‐A purification, in the present article an ammonium sulfate precipitation was applied to the culture supernatant, allowing an enriched bacteriocin extract containing 16.7 AU mg ‐1 of the active compound to be obtained, with a total activity yield of 25%. Purification is an essential step for bacteriocin applications but also represents a time‐consuming and a low‐yield step of the entire production process, as confirmed by the obtained data . Barbiroli et al reported on sakacin‐A purification from a food‐grade medium by one‐step diafiltration, giving a freeze‐dried enriched sakacin‐A with an antimicrobial titer of 1.36 AU mg ‐1 and a total activity yield of 20%.…”
Section: Discussionsupporting
confidence: 52%
“…In the applied conditions, the bacteriocin concentration in mats was around 50 AU cm −2 . Barbiroli et al reported on the development of a sakacin‐A active paper (0.63 mg cm −2 ) produced by coating PE‐coated paper sheets employing a crude sakacin‐A extract to obtain an active antimicrobial package. Storage trials of thin‐cut veal meat slices inoculated with Listeria laid on active paper sheets evidenced a 1.5 Log units reduction of Listeria population with respect to control after 48 h at 4 °C.…”
Section: Discussionmentioning
confidence: 99%
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“…A sakacin‐A active polyethylene‐coated paper sheet reduced 1·5 log 10 CFU per g of Listeria innocua on thin‐cut veal meat slices after 48 h of cold storage (Barbiroli et al . ). Mauriello et al .…”
Section: Discussionmentioning
confidence: 97%