Title of article :
Evaluation of an enterocin AS-48 enriched bioactive powder obtained by spray drying Original Research Article
Author/Authors :
S. Ananou، نويسنده , , A. Mu?oz، نويسنده , , M. Mart?nez-Bueno، نويسنده , , P. Gonz?lez-Tello، نويسنده , , A. G?lvez، نويسنده , , M. Maqueda، نويسنده , , E. Valdivia، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2010
Pages :
6
From page :
58
To page :
63
Abstract :
Enterocin AS-48 is a cationic cyclic bacteriocin produced by Enterococcus faecalis with broad bactericidal activity. Currently we are assaying the efficacy of AS-48 as biopreservative in foods. In this work we have applied the spray drying process to different AS-48 liquid samples to obtain active dried preparations. We have also assayed different methods, heat, UV irradiation and filtration, to inactivate/remove the AS-48 producer cells from the samples. Best results were obtained for the sample from CM-25 cation exchange, for which it was also possible to completely eliminate/inactivate the producer cells by heat or UV irradiation without loss of activity. When added at 0.016% or 5% to Brain Heart Infusion broth or to skim milk, respectively, the AS-48 powder caused early and complete inactivation of Listeria monocytogenes. A partial inhibition of Staphylococcus aureus was achieved in broth and in skim milk supplemented with 2.5% and 10% AS-48 powder, respectively.
Keywords :
Enterocin AS-48 , Spray drying , Listeria monocytogenes , Staphylococcus aureus , Bioactive powder
Journal title :
Food Microbiology
Serial Year :
2010
Journal title :
Food Microbiology
Record number :
1189879
Link To Document :
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