Journal
FOOD CHEMISTRY
Volume 275, Issue -, Pages 417-425Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2018.09.054
Keywords
Packaging; Anthocyanins; Color; Sterilization; Biopolymers
Funding
- Coordination for the Improvement of Higher Education Personnel (CAPES, Brazil) [01-P-3712/2017]
- School of Agricultural Engineering - University of Campinas
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The influence of the incorporation of blackberry pulp on properties of arrowroot starch films has been studied. The blackberry pulp transferred bioactive compounds, antioxidant capacity and color to arrowroot starch films. Increasing the concentration of blackberry pulp (from 0 to 40%, mass/mass of dry starch) in the film resulted in increased thickness (from 0.065 to 0.133 mm), increased elongation (from 3.18 to 13.59%), decreased tensile strength (from 22.71 to 3.97 MPa), increased water vapor permeability (from 3.62 to 4.60 g.mm/m(2).day.kPa) and solubility in water (from 14.18 to 25.46%). The films were stable to different media, maintaining the same initial diameter dimensions after immersion in acidic, neutral and alkaline solutions, but their color intensity was reduced, probably due to the release of anthocyanins to the solutions. The films with blackberry pulp presented darkness after sterilization process.
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