Efficient extraction of pectic polysaccharides from thinned unripe kiwifruits by deep eutectic solvent-based methods: Chemical structures and bioactivities

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Efficient extraction of pectic polysaccharides from thinned unripe kiwifruits by deep eutectic solvent-based methods: Chemical structures and bioactivities
Title:
Efficient extraction of pectic polysaccharides from thinned unripe kiwifruits by deep eutectic solvent-based methods: Chemical structures and bioactivities
Journal Title:
Food Chemistry: X
Publication Date:
17 December 2023
Citation:
Wu, D.-T., Geng, J.-L., Li, J., Deng, W., Zhang, Y., Hu, Y.-C., Zou, L., Xia, Y., Zhuang, Q.-G., Liu, H.-Y., & Gan, R.-Y. (2024). Efficient extraction of pectic polysaccharides from thinned unripe kiwifruits by deep eutectic solvent-based methods: Chemical structures and bioactivities. Food Chemistry: X, 21, 101083. https://doi.org/10.1016/j.fochx.2023.101083
Abstract:
To promote the potentially industrial applications of thinned unripe kiwifruits, two deep eutectic solvent-based methods, including deep eutectic solvent-assisted extraction (DAE) and microwave-assisted deep eutectic solvent extraction (MDE), were optimized for the extraction of polysaccharides from thinned unripe kiwifruits (YKP). Results showed that the yields of YKP-D prepared by DAE and YKP-DM prepared by MDE were extremely higher than YKP-H prepared by hot water extraction. Furthermore, YKP-H, YKP-D, and YKP-DM were mainly composed of pectic polysaccharides, including homogalacturonan (HG) and rhamnogalacturonan I (RG I) domains. Besides, both YKP-D and YKP-DM exhibited stronger antioxidant, anti-glycosylation, and immunomodulatory effects than those of YKP-H, and their higher contents of uronic acids and bound polyphenols as well as lower molecular weights could partially contribute to their bioactivities. Overall, these results revealed that the developed MDE method could be utilized as a promising method for highly efficient extraction of YKP with superior beneficial effects.
License type:
Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
Funding Info:
This work was supported by the Scientific Research Fund Projects of Science and Technology Department of Sichuan Province (No.2022JDJQ0063 and No. 2023YFN0011), the Local Financial Funds of National Agricultural Science and Technology Center, Chengdu, China (No. NASC2021TD01), and the Agricultural Science and Technology Innovation Program of Chinese Academy of Agricultural Sciences, Chengdu, China (No. ASTIP-IUA-2023003)
Description:
ISSN:
2590-1575