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Use of Electrosprayed Agave Fructans as Nanoencapsulating Hydrocolloids for Bioactives

1
Laboratorio Integral de Investigación en Alimentos, Tecnológico Nacional de México/Instituto Tecnológico de Tepic, Av. Tecnológico 2595, C.P. Tepic 63175, Nayarit, Mexico
2
Novel Materials and Nanotechnology Group, IATA-CSIC, Calle Catedrático Agustín Escardino Benlloch 7, 46980 Paterna, Spain
*
Author to whom correspondence should be addressed.
Nanomaterials 2018, 8(11), 868; https://doi.org/10.3390/nano8110868
Received: 25 September 2018 / Revised: 11 October 2018 / Accepted: 12 October 2018 / Published: 23 October 2018
(This article belongs to the Special Issue Nanomaterials to Enhance Food Quality, Safety, and Health Impact)
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Abstract

High degree of polymerization 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. For 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 to provide a protective effect of β-carotene by the nanocapsules. Scanning electron microscopy (SEM) images showed spherical particles with sizes ranging from 440 nm to 880 nm depending on the concentration of HDPAF and processing parameters. FTIR analysis confirmed the interaction and encapsulation of β-carotene with HDPAF. The 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 ultraviolet (UV) light. Therefore, HDPAF is a viable option to formulate nanocapsules as a new encapsulating material. In addition, EC allowed for increases in the ratio of β-carotene:polymer, as well as its photostability. View Full-Text
Keywords: HDPAF; β-carotene; electrospraying; encapsulation; photoprotection HDPAF; β-carotene; electrospraying; encapsulation; photoprotection
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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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.

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