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Pullulan-Tween 40 emulsified films containing geraniol: production and characterization as potential food packaging materials
Ist Teil von
European food research & technology, 2024-06, Vol.250 (6), p.1721-1732
Ort / Verlag
Berlin/Heidelberg: Springer Berlin Heidelberg
Erscheinungsjahr
2024
Quelle
SpringerLink (Online service)
Beschreibungen/Notizen
Petroleum-based plastics have been widely used as packaging materials because of their low-cost availability and good mechanical properties. However, the use of plastics has become restricted as they are highly resistant to biodegradation, causing environmental problems. This work aimed to produce and characterize emulsified pullulan films incorporating geraniol for application as food packaging materials with potential to substitute the conventional plastics. When geraniol was incorporated in the films, they showed antimicrobial activity against
Enterococcus faecalis
ATCC 29212 (inhibition zone diameter = 15.19 ± 0.66 mm) and
Pseudomonas aeruginosa
ATCC 27853 (inhibition zone diameter = 10.99 ± 1.82 mm). Furthermore, scanning electron microscopy showed the inhibition of
Enterococcus faecalis
ATCC 29212 biofilms when they were directly formed on the emulsified pullulan films incorporating geraniol. The produced films also demonstrated high transparency (> 90%) and hydrophilic surfaces (water contact angle < 90°). This work demonstrated the viability of using geraniol to produce pullulan active films as new food packaging materials.