Antibacterial and hypoglycemic activity of flavonoids in etiolated tissues from fresh-cut Chinese water-chestnuts (Eleocharis tuberosa)

Yuan, Rongfang; Li, Changle; Yingjie, Pan; Zhang, Zhengke; Zhu, Yi Zhun; Nie, Yudong

doi:10.1016/j.scienta.2022.110925

Cited by 10 publications

(4 citation statements)

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“…Flavonoids not only play important roles in mediating the response of plants to biological and non-biological environmental stressors as secondary metabolites [ 37 ], but also are important ingredients in plants with antioxidant, antibacterial, and hypoglycemic activities [ 38 , 39 ]. It has been reported that the tissues of A. lappa contain quercetin, luteolin, quercetin (quercetin and glycoside), flavanol, and other flavonoids [ 7 , 40 ].…”

Section: Resultsmentioning

confidence: 99%

Visualizing the Spatial Distribution of Arctium lappa L. Root Components by MALDI-TOF Mass Spectrometry Imaging

Qiu

Jiang

et al. 2022

Foods

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This study is aimed at developing novel analytical methods to accurately visualize the spatial distribution of various endogenous components in Arctium lappa L. (A. lappa) roots, and to precisely guide the setting of pre-treatment operations during processing technologies and understand plant metabolism process. The matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) imaging technology was used for visual demonstration of the in situ spatial distribution in A. lappa roots. This work consisted of four steps: matrix selection, section preparation, matrix coating, and MALDI-TOF MS imaging analysis. Consequently, eight saccharides, four caffeoylquinic acids, four flavonoids, six amino acids, one choline, and one phospholipid were imaged and four unidentified components were found. Saccharides were distributed in the center, whereas caffeoylquinic acids and flavonoids were mainly present in the epidermis and cortex. Furthermore, amino acids were mainly detected in the phloem, and choline in the cambium, while phosphatidylserine was found in the secondary phloem and cambium. This study demonstrated that MALDI-TOF MS imaging technology could provide a technical support to understand the spatial distribution of components in A. lappa roots, which would promote the processing technologies for A. lappa roots and help us to understand the plant metabolism process.

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Section: Resultsmentioning

confidence: 99%

Visualizing the Spatial Distribution of Arctium lappa L. Root Components by MALDI-TOF Mass Spectrometry Imaging

Qiu

Jiang

et al. 2022

Foods

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“…For example, the flavonoids in chestnut had antibacterial effects on common spoilage bacteria in low-temperature meat products such as Proteus and Macrococcus ( Zhang, W. et al, 2020 ). Flavonoids in etiolated tissues from fresh-cut Chinese water-chestnuts ( Eleocharis tuberosa ) had been reported to be effective against B. subtilis , S. aureus , E. coli , and Salmonella ( Yuan et al, 2022 ). Other research has reported that the antibacterial effect and mode of action of flavonoids from Licorice against methicillin-resistant S. aureus ( Wu et al, 2019 ).…”

Section: Discussionmentioning

confidence: 99%

Antibacterial activity and mechanism of flavonoids from Chimonanthus salicifolius S. Y. Hu. and its transcriptome analysis against Staphylococcus aureus

Zhou

Chen²,

Ouyang³

et al. 2023

Front. Microbiol.

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IntroductionChimonanthus salicifolius S. Y. Hu. (FCS) possess many biological activities, but the antibacterial activity and underlying mechanisms of flavonoids from Chimonanthus salicifolius S. Y. Hu. (FCS) is still unknown.MethodMaximum diameter of inhibition zone (DIZ), maximum diameter of inhibition zone (DIZ), the lowest minimum inhibition concentration (MIC), and the lowest minimum bactericide concentration (MBC) were used to detect the antibacterial activity. Meanwhile, related enzyme activities, the transcriptome analysis and quantitative RT-PCR were used to investigate the antibacterial activity mechanisms.ResultsThe results showed that FCS (with a purity of 84.2 ± 2.0%) has potential effects on tested strains with the maximum diameter of inhibition zone (DIZ) was 15.93 ± 2.63 mm, the lowest minimum inhibition concentration (MIC) was 1.56 mg/ml and the lowest minimum bactericide concentration (MBC) was 6.25 mg/ml. In addition, the bacterial growth curve test, release of extracellular alkaline phosphatase (AKP), loss of intracellular components, DNA damage and transmission electron microscope (TEM) suggested that FCS could destroy the cell wall and membrane, cause the loss of intracellular substance, cause DNA damage and even lead to cell death. Moreover, the antibacterial mechanism of FCS against Staphylococcus aureus (S. aureus, Gram-positive bacteria) was further confirmed by the transcriptome analysis and quantitative RT-PCR at the molecular level for the first time. A total of 671 differentially expressed genes (DEGs) were identified after treated with FCS (1/2 MIC), with 338 and 333 genes showing up-regulation and down-regulation, respectively. The highlighted changes were those related to the biosynthesis of bacteria wall and membrane, DNA replication and repair, and energy metabolism.DiscussionOverall, our research provides theoretical guidance for the application of FCS, which is expected to be potentially used as a natural antimicrobial agent in food safety.

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“…Natural extracts of flavonoids are new preservatives that extend storage time and maintain the original flavor of fresh-cut products. Eleocharis tuberosa (Chinese water-chestnuts) are rich in flavonoids and displayed antibacterial activity and medicinal properties [ 7 ]. Sonchus oleraceus L. extract showed elevated antioxidant capacity, effectively inhibited increases in malondialdehyde content, and efficiently controlled enzymatic activities in fresh-cut potato slices [ 8 ].…”

Section: Introductionmentioning

confidence: 99%

Preservative effects of Osmanthus fragrans flower flavonoids on fresh-cut Yuluxiang pear

Chen,

Wang,

Yang

et al. 2024

Heliyon

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Antibacterial and hypoglycemic activity of flavonoids in etiolated tissues from fresh-cut Chinese water-chestnuts (Eleocharis tuberosa)

Cited by 10 publications

References 46 publications

Visualizing the Spatial Distribution of Arctium lappa L. Root Components by MALDI-TOF Mass Spectrometry Imaging

Visualizing the Spatial Distribution of Arctium lappa L. Root Components by MALDI-TOF Mass Spectrometry Imaging

Antibacterial activity and mechanism of flavonoids from Chimonanthus salicifolius S. Y. Hu. and its transcriptome analysis against Staphylococcus aureus

Preservative effects of Osmanthus fragrans flower flavonoids on fresh-cut Yuluxiang pear

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