Munhoz, Davi R.
Moreira, V, Francys K.
Bresolin, Joana D.
Bernardo, Marcela P.
De Sousa, Cristina P.
Mattoso, Luiz H. C.
Total Authors: 6
 Embrapa Instrumentat, Natl Nanotechnol Lab Agribusiness LNNA, 15 Novembro St, BR-13560970 Sao Carlos, SP - Brazil
 Moreira, Francys K., V, Embrapa Instrumentat, Natl Nanotechnol Lab Agribusiness LNNA, 15 Novembro St, BR-13560970 Sao Carlos, SP - Brazil
 Fed Univ Sao Carlos UFSCar, Postgrad Program Biotechnol PPG Biotec, Rod Washington Luis, Km 235, BR-13565905 Sao Carlos, SP - Brazil
Total Affiliations: 3
ACS SUSTAINABLE CHEMISTRY & ENGINEERING;
Web of Science Citations:
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 degrees C, leading to a drying time of 7 min and productivity of 0.03 m(2) film min(-1). 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 Escherichia coli, Staphylococcus aureus and Bradyrhizobium diazoefficiens, a nitrogen-fixing symbiotic bacterium. (AU)