Document Detail

Intrinsic Tween 20 Improves Release and Antilisterial Properties of Co-encapsulated Nisin and Thymol.
MedLine Citation:
PMID:  21812480     Owner:  NLM     Status:  Publisher    
Antimicrobial delivery systems have been proposed as potential solutions to improve effectiveness of antimicrobials in food matrices by shielding antimicrobials from contacting food matrix components and releasing them continuously. In this work, spray-dried capsules were produced from zein solutions with same concentrations of nisin and thymol but with varying Tween 20 contents for characterization of release kinetics of antimicrobials and antilisterial properties. At intermediate levels of Tween 20, sustained and more complete release of antimicrobials was observed at pH 6.0 and 8.0. Most capsule samples were more effective than free antimicrobials against Listeria monocytogenes in 2% reduced fat milk, and the best capsule treatment reduced the bacterial population by 2-log CFU/mL more than comparable free antimicrobials after 4 h incubation at 25C. Our work demonstrated that non-ionic surfactant can be conveniently used to modulate characteristics of delivery systems to effectively improve antimicrobial functions in food systems.
Dan Xiao; Christina Gömmel; P Michael Davidson; Qixin Zhong
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-8-3
Journal Detail:
Title:  Journal of agricultural and food chemistry     Volume:  -     ISSN:  1520-5118     ISO Abbreviation:  -     Publication Date:  2011 Aug 
Date Detail:
Created Date:  2011-8-4     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0374755     Medline TA:  J Agric Food Chem     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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