Biodegradation of Moringa oleifera’s polymer blends

Abstract

Vegetable oils are used as a base for the synthesis of polymers and monomers with structures similar to that of petroleum, as plasticizers for conventional polymers and biodegrading additives. The Moringa oleifera oil was extracted from seeds and polymerized after being submitted to 16 h of microwave irradiation without catalysers. This polymer was characterized and the efficiency of the oil polymerization was verified by the reduction of double bonds and the increase of molecular weight up to 50,000 g mol. Films produced by a mixture of low-density polyethylene (LDPE) with poly(butylene adipate-co-terephthalate)/poly(lactic acid) (PBAT/PLA) present low tensile resistance and low biodegradation behaviour. In order to improve those properties, the Moringa polymer (PMO) was mixed with LDPE and PBAT/PLA in specific mass concentrations. The films produced with this mixture were characterized and submitted to biodegradation analysis. The PMO behaves as a compatibilizer by improving thermal properties, reducing the crystalline phase and improving the biodegradation behaviour. The biodegradation improved up to five times in comparison to conventional polymers and it restores the mechanical properties.

Development of hybrid electrospun alginate-pulverized moringa composites

“…The third event occurs from 300 to 428 °C, which corresponds to the PMO. This study was like the previous studies by Finzi-Quintão et al 78 The SAF shows some similar degradation properties, and the samples almost overlapped the profile relating to that of pure sodium alginate powders, except for the presence of an additional decomposition step, the details, show the first stage occurring at the same temperature of 40–110 °C temperature while the losses are positioned at a temperature of 330–350 °C. The degradation step can tentatively be ascribed to the crosslinking degradation property step of SA as reported by Pan et al 79 which stabilizes the polymer and consequently delays its degradation.…”

Exploiting the Potential ofMoringa oleiferaOil/Polyvinyl Chloride Polymeric Bionanocomposite Film Enriched with Silver Nanoparticles for Antimicrobial Activity

“…In 2018, Finzi-Quintao et al reported a comparative study of Moringa oleifera oil in mixtures with commercial polymers [12]. Furthermore, Finzi-Quintao et al suggested another study in 2019 concerned with the biodegradation of Moringa oleifera's polymer blends [13]. In 2016, Abd-Rabou et al addressed and explored the potential of Moringa oleifera seed oil as an impact compound to promote the mechanism of mitochondrial apoptosis of cancer cell death [14].…”