Nanocellulose incorporated Polylactic Acid Films for chilled preservation of Indian Anchovy (Stolephorus indicus) (van Hasselt, 1823)
Nanocellulose incorporated Polylactic Acid Films for chilled preservation of Indian Anchovy (Stolephorus indicus) (van Hasselt, 1823)
Date
2021
Authors
Thomas, Geethu
Kumar, K. Sathish
Panda, Satyan Kumar
Bindu, J.
Journal Title
Journal ISSN
Volume Title
Publisher
Society of Fisheries Technologists (India)
Abstract
Polylactic acid (PLA) nanocellulose (NC) films were
fabricated by compounding different levels (1%, 2%
and 3%) of nanocellulose into the PLA matrix to
improve the mechanical properties. The mixed PLA
and NC of different percentage were extruded into
tubular blown films using a co-rotating extruder.
The films were analysed for different mechanical
and physical properties. The addition of
nanocellulose significantly improved the tensile
strength and the heat sealing properties of the films.
The water vapour transmission rate did not show
much difference between the different levels of NC
filler. The surface morphology of the obtained films
was characterised by scanning electron microscopy
(SEM). The compositional analysis was done by
Fourier transform infrared spectroscopy (FTIR) and
it revealed that nanocellulose interacted with PLA.
Stolephorus indicus (anchovy) (van Hasselt, 1823)
were packed in different PLA/NC films and kept in
chilled condition for 20 days to evaluate the
preservative effect. Biochemical parameters such as
peroxide value, free fatty acid, trimethylamine, total
volatile base nitrogen and microbial parameter such
as total plate count were carried out during the
storage period. The results proved that the fish
samples packed in different PLA/nanocellulose
films had better shelf life compared to neat PLA and
LDPE films during the chilled storage.
Description
Keywords
Polylactic acid, nanocellulose, films, Indian Anchovy,, chilled storage