Resumo

ESCOBAR, Sindy; BERNAL, Claudia  e  MESA, Mónica. Enzymatic synthesis of 4-methoxycinnamoylglycerol Uv filter mediated by immobilized-lipase and nanoparticle formation on N-succinylchitosan. rev.udcaactual.divulg.cient. [online]. 2020, vol.23, n.2, e1631.  Epub 30-Jul-2020. ISSN 0123-4226.  https://doi.org/10.31910/rudca.v23.n2.2020.1631.

The synthesis of 4-methoxycinnamoylglycerol takes advantage of the biodiesel subproduct for obtaining a hydrophilic UV cinnamate derivate filter, useful in sunscreen formulations. The objective here was to demonstrate that esterification of 4-methoxycinnamic acid and glycerol mediated by immobilized-lipase from Thermomyces lanuginosus is selective towards 4-methoxycinnamoylglycerol monoester UV filter, whose chemical characteristics favor the nanoparticles formation by ionotropic gelation on N-Succinyl chitosan. A cinnamic acid conversion (34% in hexane is higher than in other reports, without the presence of other sub-products or degradation products. This eases the purification process by liquid-liquid extraction. The free glyceryl entities favour its incorporation on N-Succinyl chitosan nanoparticles with size around 185(77nm, which are promissory for sunblock products.

Palavras-chave : Cinnamate derivates; UV radiation filter; Nanoparticles; Immobilized lipases.

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