Bioactive aerogels based on native and phosphorylated potato (Solanum tuberosum L.) starches incorporated with star fruit extract (Averrhoa carambola L.).

Autor: Kaster JB; Laboratory of Biopolymers and Nanotechnology in Food (BioNano), Department of Agroindustrial Science and Technology, Federal University of Pelotas (UFPel), 96010-900 Pelotas, RS, Brazil., Cruz EPD; Laboratory of Biopolymers and Nanotechnology in Food (BioNano), Department of Agroindustrial Science and Technology, Federal University of Pelotas (UFPel), 96010-900 Pelotas, RS, Brazil. Electronic address: elderpachecodacruz@gmail.com., Silva FTD; Laboratory of Biopolymers and Nanotechnology in Food (BioNano), Department of Agroindustrial Science and Technology, Federal University of Pelotas (UFPel), 96010-900 Pelotas, RS, Brazil., Hackbart HCDS; Laboratory of Biopolymers and Nanotechnology in Food (BioNano), Department of Agroindustrial Science and Technology, Federal University of Pelotas (UFPel), 96010-900 Pelotas, RS, Brazil., Siebeneichler TJ; Laboratory of Biopolymers and Nanotechnology in Food (BioNano), Department of Agroindustrial Science and Technology, Federal University of Pelotas (UFPel), 96010-900 Pelotas, RS, Brazil., Camargo TM; Bioprocess Technology Laboratory, Technological Development Center (CDTec), Federal University of Pelotas (UFPel), 96010-900 Pelotas, RS, Brazil., Radünz M; Laboratory of Biopolymers and Nanotechnology in Food (BioNano), Department of Agroindustrial Science and Technology, Federal University of Pelotas (UFPel), 96010-900 Pelotas, RS, Brazil., Fonseca LM; Laboratory of Biopolymers and Nanotechnology in Food (BioNano), Department of Agroindustrial Science and Technology, Federal University of Pelotas (UFPel), 96010-900 Pelotas, RS, Brazil., Zavareze EDR; Laboratory of Biopolymers and Nanotechnology in Food (BioNano), Department of Agroindustrial Science and Technology, Federal University of Pelotas (UFPel), 96010-900 Pelotas, RS, Brazil.
Jazyk: angličtina
Zdroj: International journal of biological macromolecules [Int J Biol Macromol] 2024 Jun; Vol. 272 (Pt 2), pp. 132907. Date of Electronic Publication: 2024 Jun 10.
DOI: 10.1016/j.ijbiomac.2024.132907
Abstrakt: The aim of this study was to develop a star fruit extract (SFE) and incorporate it into aerogels based on native and phosphorylated potato starches. The phosphorylation of starch enhances its properties by incorporating phosphate groups that increase the spaces between starch molecules, resulting in a more resilient, intact aerogel with enhanced water absorption. The bioactive aerogels based on potato starch and 10, 15, and 20 % (w/w) of SFE were characterized by their morphological and thermogravimetric properties, infrared spectra, water absorption capacity, loading capacity, and antioxidant activity. Epicatechin was the major compound present in SFE. The thermal stability of SFE increased when incorporated into phosphorylated starch aerogels at a concentration of 20 %. The water absorption capacity was higher in phosphorylated starch aerogels (reaching 1577 %) than in their native counterparts (reaching 1100 %). Native starch aerogels with 15 and 20 % SFE exhibited higher antioxidant activity against hydroxyl free radicals compared to phosphorylated starch aerogels, achieving 79.9 % and 86.4 % inhibition for the hydroxyl and nitric oxide radicals, respectively. The ideal choice of freeze-dried aerogel depends on the desired effect, either to act as an antioxidant agent by releasing bioactive compounds from SFE or as a water-absorbent agent in food products.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024. Published by Elsevier B.V.)
Databáze: MEDLINE
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