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Researchers at IATA-CSIC in Spain developed an antioxidant multilayer structure based on thermoplastic corn starch (TPCS) by means of the electrohydrodynamic process of electrospinning. Firstly, the effect of adding electrospun outer layers made of polycaprolactone (PCL) was evaluated. Secondly, β-carotene was encapsulated into PCL and the influence of this was studied.
Barrier properties of the TPCS based films were improved by the addition of the electrospun coatings. However, β-carotene addition did not improve barrier properties as compared to their counterparts prepared without the active compound. An article about the research is published in Starch.
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