Polylactic acid/chitosan films for packaging of Indian white prawn (Fenneropenaeus indicus)
Polylactic acid/chitosan films for packaging of Indian white prawn (Fenneropenaeus indicus)
Date
2018
Authors
Fathima, P.E.
Panda, S.K.
Ashraf, P.M.
Varghese, T.O.
Bindu, J.
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Abstract
Composite films were developed by embedding nanochitosan (0.5%, 1% and 2%) in a polylactic acid (PLA)matrix
using polyethylene glycol as a cross linking agent and polyvinyl alcohol as plasticizer. Themixturewas casted into
films via solvent casting. The interaction between the polylactic acid/nanochitosan (PLA/NCS) and polyethylene
glycol had a significant effect on the tensile strength and the heat sealing properties. Antimicrobial properties of
PLA/NCS films have been confirmed against aerobic microorganisms. PLA/NCS solvent casted films were used to
pack prawn meat (Fenneropeneaus indicus) which was further stored in chilled condition for 18 days. The study
proved that microbial and biochemical quality indices of prawn samples packed in different PLA/NCS film were
retained and concluded that PLA/NCS composite films can be used for packing of fresh prawn to increase its shelf
life.
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Citation
Int. J. Biol. Macromolecules 117:1002-1010