کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5740037 1616235 2017 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Characterization of antimicrobial properties of Salmonella phage Felix O1 and Listeria phage A511 embedded in xanthan coatings on Poly(lactic acid) films
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک دانش تغذیه
پیش نمایش صفحه اول مقاله
Characterization of antimicrobial properties of Salmonella phage Felix O1 and Listeria phage A511 embedded in xanthan coatings on Poly(lactic acid) films
چکیده انگلیسی


- Developed packaging embedded with Salmonella phage Felix or Listeria phage A511.
- Packaging embedded phage inhibit S. typhimurium and L. monocytogenes cultures.
- A511 packaging inhibits L. monocytogenes on meat (aerobic ≥14 d, anaerobic ≥30 d).
- Felix packaging inhibits Salmonella survival on vacuum packaged meat after 30 d.

Beyond simply providing a barrier between food and external contaminants, active packaging technologies aim to inhibit pathogen survival and growth within the packaged environment. Bacteriophages have a proven track record as targeted antimicrobials but have yet to be successfully integrated in active packaging without serious loss of activity. We have developed two bacteriophage based xanthan coatings on poly(lactic acid) (PLA) film which significantly inhibits Salmonella Typhimurium and Listeria monocytogenes growth in culture (P < 0.01), and significantly reduces survival and growth of diverse cocktails of Salmonella sp. and L. monocytogenes respectively on precooked sliced turkey breast over 30 days of anaerobic packaging at 4 or 10 °C (P < 0.05). Specifically reductions of 0.832 log at 4 °C and 1.30 log at 10 °C for Salmonella sp., and 6.31 log at 4 °C and 1.52 log at 10 °C for L. monocytogenes were observed. The coating containing Listeria phage A511 also significantly inhibited growth of L. monocytogenes over 14 days in aerobic packaging (3.79 log at 4 °C, 2.17 log at 10 °C, P < 0.05). These coatings showed 99.99% phage release within 30 min for both phages. Similar approaches could be used to develop packaging inhibitory to other significant foodborne pathogens such as Campylobacter, and Escherichia coli, as well as spoilage bacteria.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Microbiology - Volume 66, September 2017, Pages 117-128
نویسندگان
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