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<p>In this study, acemannan from gel and fructan from Aloe vera cortex were extracted using natural deep eutectic solvents (NADESs) coupled with ultrasound (150 W, 15 min at 60 °C). Choline chloride-urea was selected as the best NADES for the extraction of acemannan and fructan. The antioxidant activity (DPPH and ABTS<sup>+</sup> radical scavenging) and the inhibitory activity of enzymes affecting diabetes (alpha-amylase and alpha-glucosidase) were higher for acemannan extracted under optimal conditions than fructan. The analysis of the sugars constituting acemannan showed mannose, glucose, arabinose, and galactose at 87.69, 11.57, 0.64, and 0.09 mol %, respectively. Also, soy protein isolate (SPI)/dextran complexes were formed under different atmospheric cold plasma (ACP) times (0, 1, 1.5, 2, and 3 min) at 400 W and an air flow rate of 120 mL. The highest degree of grafting between SPI and dextran was achieved at 2 min, which was also confirmed by FTIR testing. Acemannan (5, 10, and 15% w/w) was loaded into the structure of the SPI/dextran complexes grafted at 2 min of ACP as electrosprayed nanoparticles due to its better bioactive properties. Loading 10% of acemannan in the structure of SPI/dextran complexes yielded the highest encapsulation efficiency (93.27 ± 1.78%). The formation of nanoparticles was confirmed by TEM images, and the successful loading of acemannan in the structure of nanoparticles was confirmed by FTIR. Fickian diffusion and the Peppas-Sahlin model were selected as the dominant release mechanism and the governing model for the release behavior of acemannan in different food simulants, respectively.</p>

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Atmospheric Cold Plasma-Induced Interaction of Soy Protein Isolate/Dextran for Electrospraying and In Vitro Sustained Release of Acemannan Extracted from Aloe Vera Gel

  • 期刊论文

  • 发表日期：

    2026年7月28日

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  • Anita Ariyanmehr,
  • Ali Mohamadi Sani,
  • Vahid Hakimzadeh,
  • Masoud Najaf Najafi

摘要

In this study, acemannan from gel and fructan from Aloe vera cortex were extracted using natural deep eutectic solvents (NADESs) coupled with ultrasound (150 W, 15 min at 60 °C). Choline chloride-urea was selected as the best NADES for the extraction of acemannan and fructan. The antioxidant activity (DPPH and ABTS+ radical scavenging) and the inhibitory activity of enzymes affecting diabetes (alpha-amylase and alpha-glucosidase) were higher for acemannan extracted under optimal conditions than fructan. The analysis of the sugars constituting acemannan showed mannose, glucose, arabinose, and galactose at 87.69, 11.57, 0.64, and 0.09 mol %, respectively. Also, soy protein isolate (SPI)/dextran complexes were formed under different atmospheric cold plasma (ACP) times (0, 1, 1.5, 2, and 3 min) at 400 W and an air flow rate of 120 mL. The highest degree of grafting between SPI and dextran was achieved at 2 min, which was also confirmed by FTIR testing. Acemannan (5, 10, and 15% w/w) was loaded into the structure of the SPI/dextran complexes grafted at 2 min of ACP as electrosprayed nanoparticles due to its better bioactive properties. Loading 10% of acemannan in the structure of SPI/dextran complexes yielded the highest encapsulation efficiency (93.27 ± 1.78%). The formation of nanoparticles was confirmed by TEM images, and the successful loading of acemannan in the structure of nanoparticles was confirmed by FTIR. Fickian diffusion and the Peppas-Sahlin model were selected as the dominant release mechanism and the governing model for the release behavior of acemannan in different food simulants, respectively.