Premium
Anti‐quorum sensing activity of AgCl‐TiO 2 nanoparticles with potential use as active food packaging material
Author(s) -
Naik K.,
Kowshik M.
Publication year - 2014
Publication title -
journal of applied microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.889
H-Index - 156
eISSN - 1365-2672
pISSN - 1364-5072
DOI - 10.1111/jam.12589
Subject(s) - food spoilage , chromobacterium violaceum , quorum sensing , active packaging , food packaging , food science , chemistry , shelf life , food microbiology , food additive , antifungal , food industry , biofilm , microbiology and biotechnology , bacteria , biology , genetics
Aims To study the anti‐quorum sensing (anti‐ QS ) activity of AgCl‐TiO 2 nanoparticles ( ATNP s) and its mechanism. Methods and Results Anti‐ QS activity of ATNP s was evaluated using the bacterial model C hromobacterium violaceum . Silver present in ATNP s significantly reduced violacein production in a concentration‐dependent manner, indicating inhibition of QS . Anti‐ QS activity was confirmed by the absence of signalling molecule, oxo‐octanoyl homoserine lactone during growth in the presence of ATNP s. TiO 2 acted as a good supporting matrix facilitating controlled release of silver with prolonged residual activity. Conclusions ATNP s are proposed as QS inhibitors with potential for use as an antipathogenic but nontoxic bioactive material. Although silver is well known for its bioactive potential of antibacterial, antifungal and antiviral properties, this study adds further note on its anti‐ QS activity and its potential use in food packaging industry. Significance and Impact of the Study Food spoilage is a major socio‐economic problem, and the potential role of QS in food spoilage and food safety has been indicated. Anti‐ QS materials such as ATNP s are proposed as efficient models for controlling food spoilage. ATNP s incorporated in food packaging materials could play an important role in food preservation and ensure safety of food by prolonging their shelf life.