Journal of Polymers and the Environment, Год журнала: 2024, Номер unknown

Опубликована: Дек. 27, 2024

Abstract ACETEM (E472a) and CITREM (E472c) are fatty acid esters used as additives in the food industry to improve quality, stability sensory properties of products due their emulsifying, stabilizing properties, antioxidant antimicrobial activities. Herein, we have explored use active plasticizers one most biobased polymers, polylactic (PLA). Initially, different CITREMs (LR10, SP70, RO VEG) (SOFT-NSAFE), with a variety compositions physical states at room temperature, were characterized. The studied demonstrate good thermal moderate properties. Subsequently, PLA films containing 10% tested prepared by melt extrusion posterior compression molding. obtained analyzed characterization techniques evaluate role plasticizers. Raman confocal microscopy showed that SOFT-NSAFE is homogeneously distributed films, whereas form microdomains immiscibility PLA. incorporation these decreases tensile strength, Young’s modulus glass transition temperature. However, only CITREM-LR10 able significantly enhance elongation break up 42%, orientation along cracks formed during test. Additionally, provides being LR10, SP70 impart higher activity. In terms activity, effectiveness against S. aureus , while was L. innocua bacteria. These results open possibility such for applications packaging.

Язык: Английский