1 research outputs found
Sustainable Production and <i>In vitro</i> Biodegradability of Edible Films from Yellow Passion Fruit Coproducts via Continuous Casting
Edible
films made up of yellow passion fruit (YPF) rind and pectin
as a matrix-forming agent are proposed as a means of valorizing passion
fruit processing wastes. YPF films were produced at pilot-scale using
continuous casting from aqueous formulations covering pectin/rind
and water/pulp mass ratios of 100/0–0/100. YPF films were successfully
obtained with systematic, tunable yellowish coloration and were achieved
at an optimal temperature of 120 °C, leading to a drying time
of 7 min and productivity of 0.03 m<sup>2</sup> film min<sup>–1</sup>. YPF pulp is found to plasticize the pectin matrix of the films
and thus can replace glycerol or other synthetic plasticizers. Films
with the largest rind content (50 wt %) showed mechanical strength
comparable to that of PVC cling film (9 vs 5 MPa). The biodegradable,
renewable character of YPF films was demonstrated upon exposure to <i>Escherichia coli</i>, <i>Staphylococcus aureus,</i>, and <i>Bradyrhizobium diazoefficiens</i>, a nitrogen-fixing
symbiotic bacterium