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Application of chitosan-incorporated LDPE film to sliced fresh red meats for shelf life extension Chitosan lactate was impregnated as an antimicrobial additive into low density polyethylene (LDPE) withdifferent concentrations. Also, these chitosan incorpo-rated films were applied on red meat surfaces to determine the effectiveness of chitosan on color shelf life extension and microbial growth inhibition. Chitosan was exposed to 0.1% peptone water containing the three pathogens in separate tests and inhibited microbial growth a higher levels with increasing con-centration of chitosan in the film matrix. Oxygen permeability was not affected by the incorporation ofchitosan, while the water vapor permeability increased with the addition of chitosan. Film elongationdecreased with the addition of chitosan. When chitosan incorporated films were applied on fresh redmeat, microorganisms on the meat surface were not inhibited but significant extension of red color shelflife were observed in refrigerated, sliced red meats. |
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sltmac(½ð±Ò+2): 2012-02-12 14:42:30
286792125(½ð±Ò+5, ·ÒëEPI+1): 2012-02-16 15:39:58
sltmac(½ð±Ò+5): 2012-02-19 14:05:20
286792125(½ð±Ò+5, ·ÒëEPI+1): 2012-02-16 15:39:58
sltmac(½ð±Ò+5): 2012-02-19 14:05:20
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