biostudies-literatureUnknown11(1)Goncalves LOThis research presents the development of an innovative water-insoluble film intended for use as an oil sachet. A polymeric matrix composed of babassu mesocarp flour, or its blend with babassu cake supernatant, was prepared at both native pH and pH 12. The alkaline treatment combined with supernatant (BF-BCFS12) significantly enhanced the crystallinity index (reducing from 7.35% to 3.21%), heat resistance (increasing from 57.56 to 71.25 °C), solubility (increasing from 0.14% to 1.23%), and luminosity (decreasing from 33.86 to 20.43) in comparison to the pure mesocarp film. An innovative permeability evaluation conducted using cream crackers indicated that the alkali-treated films preserved texture more effectively than the original packaging. The antiultraviolet property emerged as a critiACS omega967-979https://www.ebi.ac.uk/biostudies/studies/S-EPMC12809288biostudies-literatureWater-Insoluble Films from Upcycled Babassu Coconut Byproducts: An Alternative Material for Single-Use Oil Sachets.PMC12809288Goncalves LODe Farias PMManiglia BCSantos de Gois JDos Santos YFFai AECfalseWater-Insoluble Films from Upcycled Babassu Coconut Byproducts: An Alternative Material for Single-Use Oil Sachets.This research presents the development of an innovative water-insoluble film intended for use as an oil sachet. A polymeric matrix composed of babassu mesocarp flour, or its blend with babassu cake supernatant, was prepared at both native pH and pH 12. The alkaline treatment combined with supernatant (BF-BCFS12) significantly enhanced the crystallinity index (reducing from 7.35% to 3.21%), heat resistance (increasing from 57.56 to 71.25 °C), solubility (increasing from 0.14% to 1.23%), and luminosity (decreasing from 33.86 to 20.43) in comparison to the pure mesocarp film. An innovative permeability evaluation conducted using cream crackers indicated that the alkali-treated films preserved texture more effectively than the original packaging. The antiultraviolet property emerged as a criti2026-01-01T00:00:00Z2026 Jan2026-06-06T13:47:11.755Z2026-05-31T03:09:49.536ZS-EPMC128092884155250510.1021/acsomega.5c07743