Cited by 34Phytochemicals and Antioxidant ActivitiesAgricultural and Biological ResearchPhytochemistry and Biological Activities

Ultrasound-microwave assisted extraction of flavonoid compounds from Eucommia ulmoides leaves and an evaluation of their antioxidant and antibacterial activities

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Wang, Xiang, Peng, Mi-Jun, Wang, Zhi-Hong, Yang, Qiu-Ling, Peng, Sheng·2020·Archives of Biological Sciences

Abstract

Ultrasound/microwave assisted extraction (UMAE) of flavonoid compounds from Eucommia ulmoides leaves was studied and the extraction conditions were optimized by the Plackett-Burman design (PBD) method combined with the Box-Behnken design (BBD). The antioxidant and antibacterial activities of the flavonoid extract were investigated. The results show that the optimal conditions were an ethanol concentration of 41%, microwave power of 178 W and an ultrasound extraction time of 26 min. Under these conditions, the yield of the flavonoid compounds was 2.454%?0.230%, which was higher than that after direct solvent extraction, ultrasound extraction and microwave extraction. The results of in vitro antioxidant assays showed that the flavonoid extract had scavenging capacity for DPPH, ABTS and hydroxyl radicals, with corresponding IC50 values of 30.76 mg/L, 21.09 mg/L, 248.4 mg/L, respectively. In addition, this extract exhibited strong antibacterial activity on Escherichia coli, Staphylococcus aureus and Salmonella typhimurium.

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  • Wang et al. [132] found that extraction yield of UMAE was 2.454 % higher than that of ultrasonic and microwave extraction.

    “The findings indicated that the extraction yield of UMAE was 2.454 % higher than that of ultrasonic and microwave extraction.”

    From A comprehensive review of ultrasonic assisted extraction (UAE) for bioactive components: Principles, advantages, equipment, and combined technologies (2023) · cites this paper as [132]

    The comparison-of-extraction-methods section reports 2.454% as the yield obtained with UMAE, not the percentage by which it exceeded the other methods. It says UMAE's yield was 20.24% higher than ultrasound-assisted extraction and 41.77% higher than microwave-assisted extraction. (LLM, conf=0.90)

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Research works printed but not linked: 6

  1. Zhong SJ, Yang X, Li J, Li Y, Li XS. Study on the Total Flavo- noids Content and Antioxidant Activity in Different Parts of Eucommiae ulmoides. China Pharmacy. 2017;28(13):1787-90.
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Authors
Wang, X., Peng, M.-J., Wang, Z.-H., Yang, Q.-L., & Peng, S.
Affiliations
  • Jishou University (CN)
  • Guangdong Provincial Public Laboratory of Analysis and Testing Technology, Guangdong Institute of Analysis, Guangzhou, China
Corresponding author
Peng, Sheng
Venue
Archives of Biological Sciences
Published
2020
Volume
72
Issue
2
Pages
211-221
ISSN
  • 0354-4664 (ISSN-L)
  • 1821-4339
OpenAlex
W3018049927
Cited by
34
References
48
Citations by year
2026: 5 · 2025: 5 · 2024: 6 · 2023: 3 · 2022: 9 · 2021: 5 · 2020: 1
FWCI
2.44
Type
journal article
Language
en
Open access
Locations
  • Archives of Biological Sciences (publishedVersion, cc-by-nc-nd)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • National Natural Science Foundation of China (2019GDASYL-0502003, 31660181)
  • Guangdong Academy of Sciences
Topics
  • Health Sciences › Medicine › Biochemistry › Phytochemicals and Antioxidant Activities
  • Life Sciences › Agricultural and Biological Sciences › Food Science › Agricultural and Biological Research
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Phytochemistry and Biological Activities
Keywords
Eucommia ulmoides, flavonoids, ultrasound-assisted extraction, microwave-assisted extraction, extraction optimization, antioxidant activity, antibacterial activity, DPPH radical scavenging, ABTS radical scavenging, hydroxyl radical scavenging, Escherichia coli, Staphylococcus aureus, Salmonella typhimurium

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