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  1. Article ; Online: A cooperative combination of non-targeted metabolomics and electronic tongue evaluation reveals the dynamic changes in metabolites and sensory quality of radish during pickling.

    Liu, Wenliang / Zhang, Lingyu / Karrar, Emad / Wu, Daren / Chen, Chaoxiang / Zhang, Zhengxiao / Li, Jian

    Food chemistry

    2024  Volume 446, Page(s) 138886

    Abstract: Pickled radish is a traditional fermented food with a unique flavor after long-term preservation. This study analyzed the organoleptic and chemical characteristics of pickled radish from different years to investigate quality changes during pickling. The ...

    Abstract Pickled radish is a traditional fermented food with a unique flavor after long-term preservation. This study analyzed the organoleptic and chemical characteristics of pickled radish from different years to investigate quality changes during pickling. The results showed that the sourness, saltiness, and aftertaste-bitterness increased after pickling, and bitterness and astringency decreased. The levels of free amino acids, soluble sugars, total phenols, and total flavonoids initially decreased during pickling but increased with prolonged pickling. The diversity of organic acids also increased over time. Through non-targeted metabolomics analysis, 349 differential metabolites causing metabolic changes were identified to affect the quality formation of pickled radish mainly through amino acid metabolism, phenylpropane biosynthesis and lipid metabolism. Correlation analysis showed that L*, soluble sugars, lactic acid, and acetic acid were strongly associated with taste quality. These findings provide a theoretical basis for standardizing and scaling up traditional pickled radish production.
    MeSH term(s) Raphanus ; Electronic Nose ; Brassicaceae ; Metabolomics/methods ; Sugars
    Chemical Substances Sugars
    Language English
    Publishing date 2024-02-27
    Publishing country England
    Document type Journal Article
    ZDB-ID 243123-3
    ISSN 1873-7072 ; 0308-8146
    ISSN (online) 1873-7072
    ISSN 0308-8146
    DOI 10.1016/j.foodchem.2024.138886
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  2. Article ; Online: Comparison of Lipid Composition between Quasipaa spinosa Oil and Rana catesbeiana Oil and Its Effect on Lipid Accumulation in Caenorhabditis elegans.

    He, Lili / Wu, Daren / Liu, Jingwen / Li, Guiling / Chen, Chaoxiang / Karrar, Emad / Ahmed, Isam A Mohamed / Zhang, Lingyu / Li, Jian

    Journal of oleo science

    2024  Volume 73, Issue 2, Page(s) 239–251

    Abstract: Frog oil has been recognized for its nutritional and medicinal value. However, there is limited research on the role of frog oil in preventing obesity. In this study, we aimed to investigate the lipid composition of Quasipaa spinosa oil (QSO) and Rana ... ...

    Abstract Frog oil has been recognized for its nutritional and medicinal value. However, there is limited research on the role of frog oil in preventing obesity. In this study, we aimed to investigate the lipid composition of Quasipaa spinosa oil (QSO) and Rana catesbeiana oil (RCO) using lipidomics analysis. We compared the lipid accumulation effects of these two kinds of frog oils and soybean oil (SO) in Caenorhabditis elegans (C. elegans). Additionally, we determined the gene expression related to lipid metabolism and used the nhr-49 mutant (RB1716) and sir-2.1 mutant (VC199) for validation experiments. The results showed that the lipid composition of QSO and RCO was significantly different (p < 0.05), and QSO was rich in more polyunsaturated fatty acids (PUFAs). After feeding C. elegans, the lipid accumulation of the QSO group was the lowest among the three dietary oil groups. In addition, compared with RCO and SO, QSO significantly inhibited the production of malondialdehyde (MDA) and increased the activity of superoxide dismutase (SOD). The effects of three kinds of dietary oils on the fatty acid composition of C. elegans were significantly different. Compared with SO and RCO, QSO significantly up-regulated (p < 0.05) the expression of sir-2.1 and ech-1 genes. The results showed that QSO might reduce lipid accumulation through the SIRT1 and nuclear hormone signaling pathways. Such a situation was verified experimentally by the nhr-49 mutant (RB1716) and sir-2.1 mutant (VC199). This study proposed a new functional oil, laying the groundwork for developing functional foods from Quasipaa spinosa.
    MeSH term(s) Animals ; Caenorhabditis elegans/genetics ; Caenorhabditis elegans/metabolism ; Rana catesbeiana/metabolism ; Fatty Acids/metabolism ; Fatty Acids, Unsaturated/metabolism ; Dietary Fats, Unsaturated/pharmacology ; Soybean Oil/metabolism ; Lipid Metabolism/genetics
    Chemical Substances Fatty Acids ; Fatty Acids, Unsaturated ; Dietary Fats, Unsaturated ; Soybean Oil (8001-22-7)
    Language English
    Publishing date 2024-02-05
    Publishing country Japan
    Document type Journal Article
    ZDB-ID 2218264-0
    ISSN 1347-3352 ; 1345-8957
    ISSN (online) 1347-3352
    ISSN 1345-8957
    DOI 10.5650/jos.ess23143
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  3. Article ; Online: Debittering of Emblica (

    Zhang, Lingyu / Lin, Liting / Hu, Yunxuan / Wu, Daren / Zhang, Zhengxiao / Chen, Chaoxiang / Wang, Li / Li, Jian

    Food chemistry: X

    2024  Volume 21, Page(s) 100853

    Abstract: Emblica, also known ... ...

    Abstract Emblica, also known as
    Language English
    Publishing date 2024-01-02
    Publishing country Netherlands
    Document type Journal Article
    ISSN 2590-1575
    ISSN (online) 2590-1575
    DOI 10.1016/j.fochx.2023.100853
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  4. Article ; Online: Isolation, structural characterization and sporicidal properties of Baelezcin A, a novel cyclic lipopeptide from Bacillus velezensis SJ100083 against gray mold

    Yuan, Ziqiang / Zhou, Bo / Wu, Xiuna / Wang, Li / Li, Guiling / Liu, Jingwen / Kang, Qianjin / Wu, Daren / Li, Jian

    Journal of the Science of Food and Agriculture. 2023 Sept., v. 103, no. 12 p.5916-5926

    2023  

    Abstract: BACKGROUND: Postharvest gray mold induced by Botrytis cinerea seriously affects cherry quality, resulting in huge economic losses. The aim of this study was to isolate and purify a novel antifungal compound from the endophytic Bacillus velezensis ... ...

    Abstract BACKGROUND: Postharvest gray mold induced by Botrytis cinerea seriously affects cherry quality, resulting in huge economic losses. The aim of this study was to isolate and purify a novel antifungal compound from the endophytic Bacillus velezensis SJ100083 of cherries to prevent postharvest gray mold. RESULTS: In this study, Baelezcin A, extracted and purified from Bacillus velezensis SJ100083, was found effective in suppressing gray mold on cherries. Furthermore, the structure of Baelezcin A was identified as a novel cyclic lipopeptide with molecular formula of C₅₂H₉₁N₇O₁₃ through ultra‐high‐performance liquid chromatography quadrupole Orbitrap high‐resolution mass spectrometry (UHPLC‐Q‐Orbitrap‐HRMS) and nuclear magnetic resonance (NMR). Baelezcin A treatment at 25 mg L⁻¹ significantly decreased the disease incidence and severity of cherry gray mold, the antifungal mechanism of which was attributed to the accumulation of reactive oxygen species within the spores and the leakage of mycelium cytoplasmal contents, resulting in a low rate of spore germination. Moreover, it was proven to be biologically safe within a certain range by MTT assays. CONCLUSION: Our study demonstrated that Baelezcin A from the culture of Bacillus velezensis SJ100083 may be a promising fruit preservative for controlling postharvest gray mold caused by Botrytis cinerea. © 2023 Society of Chemical Industry.
    Keywords Bacillus velezensis ; Botrytis cinerea ; agriculture ; antifungal agents ; cherries ; disease incidence ; endophytes ; fruits ; gray mold ; lipopeptides ; mass spectrometry ; mycelium ; nuclear magnetic resonance spectroscopy ; reactive oxygen species ; spore germination ; ultra-performance liquid chromatography
    Language English
    Dates of publication 2023-09
    Size p. 5916-5926.
    Publishing place John Wiley & Sons, Ltd.
    Document type Article ; Online
    Note JOURNAL ARTICLE
    ZDB-ID 184116-6
    ISSN 1097-0010 ; 0022-5142
    ISSN (online) 1097-0010
    ISSN 0022-5142
    DOI 10.1002/jsfa.12677
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  5. Article ; Online: Extraction and characterization of cyclic lipopeptides with antifungal and antioxidant activities from Bacillus amyloliquefaciens

    Ren, Li / Yuan, Ziqiang / Xie, Tingyu / Wu, Daren / Kang, Qianjin / Li, Jieming / Li, Jian

    Journal of Applied Microbiology. 2022 Dec., v. 133, no. 6 p.3573-3584

    2022  

    Abstract: AIMS: This study aimed to isolate active substances from metabolites of Bacillus amyloliquefaciens SJ100001 and examine their antifungal activity against Fusarium oxysporum (F. oxysporum) SJ300024 screened from the root–soil of cucumber wilt. METHODS AND ...

    Abstract AIMS: This study aimed to isolate active substances from metabolites of Bacillus amyloliquefaciens SJ100001 and examine their antifungal activity against Fusarium oxysporum (F. oxysporum) SJ300024 screened from the root–soil of cucumber wilt. METHODS AND RESULTS: An active substance, anti‐SJ300024, was obtained from the fermentation broth of strain SJ100001 by reversed‐phase silica gel and gel chromatography, and further got its chemical structure as cyclic lipopeptide Epichlicin through nuclear magnetic resonance (NMR) and mass spectrometry (MS). In vitro experiments showed that Epichlicin had a better inhibitory rate (67.46%) against the strain SJ300024 than the commercially available fungicide hymexazol (45.10%) at the same concentration. The MTT assays proved that Epichlicin was non‐cytotoxic, besides it also had good free radical scavenging ability and total reducing ability. CONCLUSIONS: Epichlicin isolated from strain SJ100001 can effectively control F. oxysporum SJ300024 screened from the root–soil of cucumber wilt. SIGNIFICANCE AND IMPACT OF THE STUDY: Epichlicin may be used as an environmentally friendly and efficient biocontrol agent for controlling Fusarium wilt of cucumber and reducing crop losses. More importantly, the non‐cytotoxicity of Epichlicin can avoid harm to consumers. Additionally, Epichlicin has broad application prospects in medicine due to its antioxidant properties.
    Keywords Bacillus amyloliquefaciens ; Fusarium oxysporum ; Fusarium wilt ; active ingredients ; antifungal properties ; antioxidants ; biological control agents ; chemical structure ; cucumbers ; culture media ; free radicals ; gel chromatography ; hymexazol ; lipopeptides ; mass spectrometry ; medicine ; metabolites ; microbiology ; nuclear magnetic resonance spectroscopy ; silica gel
    Language English
    Dates of publication 2022-12
    Size p. 3573-3584.
    Publishing place John Wiley & Sons, Ltd
    Document type Article ; Online
    Note JOURNAL ARTICLE
    ZDB-ID 1358023-1
    ISSN 1365-2672 ; 1364-5072
    ISSN (online) 1365-2672
    ISSN 1364-5072
    DOI 10.1111/jam.15791
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  6. Article ; Online: Extraction and characterization of cyclic lipopeptides with antifungal and antioxidant activities from Bacillus amyloliquefaciens.

    Ren, Li / Yuan, Ziqiang / Xie, Tingyu / Wu, Daren / Kang, Qianjin / Li, Jieming / Li, Jian

    Journal of applied microbiology

    2022  Volume 133, Issue 6, Page(s) 3573–3584

    Abstract: Aims: This study aimed to isolate active substances from metabolites of Bacillus amyloliquefaciens SJ100001 and examine their antifungal activity against Fusarium oxysporum (F. oxysporum) SJ300024 screened from the root-soil of cucumber wilt.: Methods ...

    Abstract Aims: This study aimed to isolate active substances from metabolites of Bacillus amyloliquefaciens SJ100001 and examine their antifungal activity against Fusarium oxysporum (F. oxysporum) SJ300024 screened from the root-soil of cucumber wilt.
    Methods and results: An active substance, anti-SJ300024, was obtained from the fermentation broth of strain SJ100001 by reversed-phase silica gel and gel chromatography, and further got its chemical structure as cyclic lipopeptide Epichlicin through nuclear magnetic resonance (NMR) and mass spectrometry (MS). In vitro experiments showed that Epichlicin had a better inhibitory rate (67.46%) against the strain SJ300024 than the commercially available fungicide hymexazol (45.10%) at the same concentration. The MTT assays proved that Epichlicin was non-cytotoxic, besides it also had good free radical scavenging ability and total reducing ability.
    Conclusions: Epichlicin isolated from strain SJ100001 can effectively control F. oxysporum SJ300024 screened from the root-soil of cucumber wilt.
    Significance and impact of the study: Epichlicin may be used as an environmentally friendly and efficient biocontrol agent for controlling Fusarium wilt of cucumber and reducing crop losses. More importantly, the non-cytotoxicity of Epichlicin can avoid harm to consumers. Additionally, Epichlicin has broad application prospects in medicine due to its antioxidant properties.
    MeSH term(s) Bacillus amyloliquefaciens/metabolism ; Antifungal Agents/chemistry ; Antioxidants/pharmacology ; Antioxidants/metabolism ; Fusarium ; Cucumis sativus ; Anti-Bacterial Agents/pharmacology ; Lipopeptides/chemistry ; Soil ; Plant Diseases/prevention & control ; Plant Diseases/microbiology
    Chemical Substances Antifungal Agents ; Antioxidants ; Anti-Bacterial Agents ; Lipopeptides ; Soil
    Language English
    Publishing date 2022-09-07
    Publishing country England
    Document type Journal Article
    ZDB-ID 1358023-1
    ISSN 1365-2672 ; 1364-5072
    ISSN (online) 1365-2672
    ISSN 1364-5072
    DOI 10.1111/jam.15791
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  7. Article ; Online: Mechanism of Chalcophanite Nucleation in Zinc Hydroxide Sulfate Cathodes in Aqueous Zinc Batteries.

    Mansley, Zachary R / Zhu, Yimei / Wu, Daren / Takeuchi, Esther S / Marschilok, Amy C / Wang, Lei / Takeuchi, Kenneth J

    Nano letters

    2023  Volume 23, Issue 18, Page(s) 8657–8663

    Abstract: Aqueous Zn-ion batteries with ... ...

    Abstract Aqueous Zn-ion batteries with MnO
    Language English
    Publishing date 2023-09-14
    Publishing country United States
    Document type Journal Article
    ISSN 1530-6992
    ISSN (online) 1530-6992
    DOI 10.1021/acs.nanolett.3c02430
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  8. Article ; Online: Isolation, structural characterization and sporicidal properties of Baelezcin A, a novel cyclic lipopeptide from Bacillus velezensis SJ100083 against gray mold.

    Yuan, Ziqiang / Zhou, Bo / Wu, Xiuna / Wang, Li / Li, Guiling / Liu, Jingwen / Kang, Qianjin / Wu, Daren / Li, Jian

    Journal of the science of food and agriculture

    2023  Volume 103, Issue 12, Page(s) 5916–5926

    Abstract: Background: Postharvest gray mold induced by Botrytis cinerea seriously affects cherry quality, resulting in huge economic losses. The aim of this study was to isolate and purify a novel antifungal compound from the endophytic Bacillus velezensis ... ...

    Abstract Background: Postharvest gray mold induced by Botrytis cinerea seriously affects cherry quality, resulting in huge economic losses. The aim of this study was to isolate and purify a novel antifungal compound from the endophytic Bacillus velezensis SJ100083 of cherries to prevent postharvest gray mold.
    Results: In this study, Baelezcin A, extracted and purified from Bacillus velezensis SJ100083, was found effective in suppressing gray mold on cherries. Furthermore, the structure of Baelezcin A was identified as a novel cyclic lipopeptide with molecular formula of C
    Conclusion: Our study demonstrated that Baelezcin A from the culture of Bacillus velezensis SJ100083 may be a promising fruit preservative for controlling postharvest gray mold caused by Botrytis cinerea. © 2023 Society of Chemical Industry.
    MeSH term(s) Antifungal Agents/pharmacology ; Bacillus ; Botrytis ; Lipopeptides/pharmacology ; Plant Diseases/prevention & control ; Plant Diseases/microbiology
    Chemical Substances Antifungal Agents ; Lipopeptides
    Language English
    Publishing date 2023-05-19
    Publishing country England
    Document type Journal Article
    ZDB-ID 184116-6
    ISSN 1097-0010 ; 0022-5142
    ISSN (online) 1097-0010
    ISSN 0022-5142
    DOI 10.1002/jsfa.12677
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  9. Article ; Online: miR-494-5p mediates the antioxidant activity of EPA by targeting the mitochondrial elongation factor 1 gene MIEF1 in HepG2 cells.

    Lin, Yanqi / Wu, Xiaowen / Lin, Lingli / Mei, Yuanyuan / Zhou, Jing / Chen, Chaoxiang / Li, Jian / Wu, Daren / Liu, Jingwen / Li, Guiling

    The Journal of nutritional biochemistry

    2023  Volume 115, Page(s) 109279

    Abstract: Eicosapentaenoic acid (EPA) shows antioxidant activity, which may be attributed to its regulatory effect on microRNA expression. Our preliminary study indicated that EPA upregulated miR-494-5p, which was possibly involved in the regulation of cellular ... ...

    Abstract Eicosapentaenoic acid (EPA) shows antioxidant activity, which may be attributed to its regulatory effect on microRNA expression. Our preliminary study indicated that EPA upregulated miR-494-5p, which was possibly involved in the regulation of cellular stress responses. The current study aimed to address whether miR-494-5p was targeted by EPA to regulate cellular oxidative stress and its possible functional mechanism. The results showed that miR-494-5p mediated the antioxidant effect of EPA and miR-494-5p reduction deteriorated EPA-induced increase in the cellular antioxidant capacity of HepG2 cells. Moreover, the mitochondrial elongation factor 1 (MIEF1) gene was a target gene of miR-494-5p. Both miR-494-5p overexpression and MIEF1 knockdown significantly enhanced cellular antioxidant capacity, as indicated by a reduction in the reactive oxygen species level and an increase in the total cellular antioxidant capacity, along with enhancing antioxidant enzymes. Thus, miR-494-5p and MIEF1 had opposite effects on cellular antioxidant capacity. Furthermore, their regulatory effects on oxidative stress may have been attributed to modulation of mitochondrial function, biogenesis and homeostasis. Taken together, the findings indicated that miR-494-5p mediated EPA activity and promoted cellular antioxidant capacity by inhibiting the expression of MIEF1, which further modulated mitochondrial structure and activity. This study may provide novel insights into the post-translational regulation of antioxidation reactions, which involves the coordinated control of mitochondria.
    MeSH term(s) Humans ; Antioxidants/pharmacology ; Antioxidants/metabolism ; Eicosapentaenoic Acid/pharmacology ; Peptide Elongation Factor 1/genetics ; Peptide Elongation Factor 1/metabolism ; Peptide Elongation Factor 1/pharmacology ; Hep G2 Cells ; Oxidative Stress ; MicroRNAs/metabolism
    Chemical Substances Antioxidants ; Eicosapentaenoic Acid (AAN7QOV9EA) ; Peptide Elongation Factor 1 ; MicroRNAs
    Language English
    Publishing date 2023-02-02
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1014929-6
    ISSN 1873-4847 ; 0955-2863
    ISSN (online) 1873-4847
    ISSN 0955-2863
    DOI 10.1016/j.jnutbio.2023.109279
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  10. Article: Characterization of xanthine oxidase inhibitory activities of phenols from pickled radish with molecular simulation

    Liu, Xiaoze / Wu, Daren / Liu, Jingwen / Li, Guiling / Zhang, Zhengxiao / Chen, Chaoxiang / Zhang, Lingyu / Li, Jian

    Food chemistry: X. 2022 June 30, v. 14

    2022  

    Abstract: Pickled radish is a general source of natural bioactive compounds that include phenols. Here, we used molecular docking, fluorescence quenching, circular dichroism spectroscopy and molecular dynamics simulations to identify potential inhibitors against ... ...

    Abstract Pickled radish is a general source of natural bioactive compounds that include phenols. Here, we used molecular docking, fluorescence quenching, circular dichroism spectroscopy and molecular dynamics simulations to identify potential inhibitors against xanthine oxidase from a library of pickled radish compounds. The most effective compounds were selected for validation through in vitro experiments including enzyme activity inhibition tests, and cell-based assays. Molecular docking results revealed that 2,6-Dihydroxyacetophenone, 4-Hydroxyphenethyl alcohol, and 4-Hydroxybenzaldehyde exhibited significant effects on xanthine oxidase inhibition. Three phenols have varying degrees of inhibition on xanthine oxidase, which is driven by hydrophobic interactions and hydrogen bonds and affects the secondary structure and hydrophobic homeostasis of xanthine oxidase. The stability of xanthine oxidase inhibition by three phenols was analyzed by molecular dynamics simulation. Finally, cellular experiments confirmed that three phenols reduced uric acid levels by inhibiting the xanthine oxidase enzyme activity of BRL 3A cells.
    Keywords circular dichroism spectroscopy ; enzyme activity ; fluorescence ; food chemistry ; homeostasis ; hydrogen ; hydrophobicity ; hydroxybenzaldehyde ; molecular dynamics ; radishes ; uric acid ; xanthine oxidase
    Language English
    Dates of publication 2022-0630
    Publishing place Elsevier Ltd
    Document type Article
    ISSN 2590-1575
    DOI 10.1016/j.fochx.2022.100343
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