Preprint Article Version 1 This version is not peer-reviewed

On the Use of Electrosprayed Agave Fructans as Nanoencapsulating Hydrocolloids for Bioactives

Version 1 : Received: 25 September 2018 / Approved: 26 September 2018 / Online: 26 September 2018 (04:38:54 CEST)

A peer-reviewed article of this Preprint also exists.

Ramos-Hernández, J.A.; Ragazzo-Sánchez, J.A.; Calderón-Santoyo, M.; Ortiz-Basurto, R.I.; Prieto, C.; Lagaron, J.M. Use of Electrosprayed Agave Fructans as Nanoencapsulating Hydrocolloids for Bioactives. Nanomaterials 2018, 8, 868. Ramos-Hernández, J.A.; Ragazzo-Sánchez, J.A.; Calderón-Santoyo, M.; Ortiz-Basurto, R.I.; Prieto, C.; Lagaron, J.M. Use of Electrosprayed Agave Fructans as Nanoencapsulating Hydrocolloids for Bioactives. Nanomaterials 2018, 8, 868.

Journal reference: Nanomaterials 2018, 8, 868
DOI: 10.3390/nano8110868

Abstract

High degree of polymerisation agave fructans (HDPAF) are presented as a novel encapsulating material. Electrospraying coating (EC) was selected as the encapsulation technique and β-carotene as the model bioactive compound. In case of direct electrospraying, two encapsulation methodologies (solution and emulsion) were proposed to find the formulation which provided a suitable particle morphology and an adequate concentration of β-carotene encapsulated in the particles. SEM images showed spherical particles with sizes ranging from 440 to 880 nm depending on the concentration of HDPAF and processing parameters. FTIR analysis confirmed interaction and encapsulation of β-carotene with HDPAF. Thermal stability of β-carotene encapsulated in HDPAF was evidenced by thermogravimetric analysis (TGA). The study showed that β-carotene encapsulated in HDPAF by the EC method remained stable for up to 50 h of exposure to UV light. Therefore, HDPAF is a viable option to formulate nanocapsules as a new encapsulating material. In addition, EC allowed increasing the ratio β-carotene:polymer as well as its photostability.

Subject Areas

HDPAF; β-carotene; electrospraying; encapsulation; photoprotection

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