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Ultrasound-assisted enzymatic extraction and antioxidant activity of polysaccharides from pumpkin (Cucurbita moschata)
Abstract
An efficient ultrasound-assisted enzymatic extraction (UAEE) of Cucurbita moschata polysaccharides (CMCP) was established and the CMCP antioxidant activities were studied. The UAEE operating parameters (extraction temperature, ultrasonic power, pH, and liquid-to-material ratio) were optimized using the central composite design (CCD) and the mass transfer kinetic study in UAEE procedure was used to select the optimal extraction time. Enzymolysis and ultrasonication that were simultaneously conducted was selected as the UAEE synergistic model and the optimum extraction conditions with a maximum polysaccharide yield of 4.33 ± 0.15% were as follows: extraction temperature, 51.5 °C; ultrasonic power, 440 W; pH, 5.0; liquid-to-material ratio, 5.70:1 mL/g; and extraction time, 20 min. Evaluation of the antioxidant activity in vitro suggested that CMCP has good potential as a natural antioxidant used in the food or medicine industry because of their high reducing power and positive radical scavenging activity for DPPH radical.
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“Compared with EAE alone and UAE alone, ultrasonic and enzyme action together can increase the extraction efficiency of polysaccharides.”
From A comprehensive review of ultrasonic assisted extraction (UAE) for bioactive components: Principles, advantages, equipment, and combined technologies (2023) · cites this paper as [133]
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Metadata
- Authors
- Wu, H., Zhu, J., Diao, W., & Wang, C.
- Affiliations
- Qingdao Agricultural University (CN)
- Corresponding author
- Wang, Chengrong
- Venue
- Carbohydrate Polymers
- Publisher
- Elsevier BV
- Published
- 2014-11
- Volume
- 113
- Pages
- 314-324
- ISSN
- 0144-8617 (ISSN-L)
- OpenAlex
- W2072936136
- Cited by
- 169
- References
- 60
- Citations by year
- 2026: 8 · 2025: 6 · 2024: 22 · 2023: 12 · 2022: 21 · 2021: 22 · 2020: 13 · 2019: 15 · 2018: 13 · 2017: 9 · 2016: 15 · 2015: 11 · 2014: 2
- FWCI
- 17.67
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Carbohydrate Polymers (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Modern Vegetable Industry Technology System of Shandong Province (SDAIT-02-022-12)
- Shandong province Higher Educational Science and Technology Program (J14LE11)
- Talents of Highlevel Scientific Research Foundation of Qingdao Agriculture University (631207)
- Topics
- Life Sciences › Agricultural and Biological Sciences › Food Science › Polysaccharides Composition and Applications
- Life Sciences › Agricultural and Biological Sciences › Plant Science › Polysaccharides and Plant Cell Walls
- Life Sciences › Agricultural and Biological Sciences › Food Science › Agricultural and Biological Research
- Keywords
- Cucurbita moschata, pumpkin polysaccharide, ultrasound-assisted enzymatic extraction, antioxidant activity, extraction optimization, mass transfer kinetics, enzymatic extraction, DPPH radical scavenging, reducing power, natural antioxidants
- MeSH terms
- Antioxidants, Polysaccharides, Sound, Free Radical Scavengers, Cucurbita
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