Such an increasing trend in WVP with the increase in pressure level was observed in the case of co-extruded PLA films, where, the WVP of the untreated film (1.55 ± 0.12) × 10 −14 (kg·m/[m 2 ·s·Pa]) increased to (1.59 ± 0.10) × 10 −14 and (1.62 ± 0.13) × 10 −14 (kg·m/[m 2 ·s·Pa]) when subjected to 450 and 600 MPa [ 58 ].
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Effect of High-Pressure Processing on the Packaging Properties of Biopolymer-Based Films: A Review.
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