In vitro cosmeceutical activity of alcoholic extract from chestnut inner shell fermented with Aspergillus sojae

Ritthibut, Nuntinee; Lim, Seung-Taik; Oh, Su-Jin

doi:10.1007/s10068-022-01044-9

Cited by 7 publications

(1 citation statement)

References 34 publications

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“…Additionally, kojic acid (Figure 2D) is a non-toxic compound commonly synthesised by Aspergillus spp. [42] that showed antifungal activity against the mould Sclerotinia sclerotiorum, which is a common plant pathogen [43], and other fungi, such as Aspergillus niger or Rhizopus oryzae [44]. Furthermore, this metabolite produced by Aspergillus parasiticus can detoxify the mycotoxin citrinin in a glucose yeast agar medium [45].…”

Section: Fungal Secondary Metabolitesmentioning

confidence: 99%

Mycotoxins and Other Secondary Metabolites Are Produced by Gnomoniopsis smithogilvyi When Confronted with Biological and Chemical Control Agents

et al. 2023

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Gnomoniopsis smithogilvyi (Gs) is a relevant pathogen of chestnut since it provokes significant losses worldwide. The aim of this study was to screen the effect of a new biocontrol agent (BCA) against Gs isolated from chestnut (CIMO-BCA1) on the mould’s growth as well as on the production of secondary metabolites. The chemical fungicide Horizon® (tebuconazole; HOR) and the commercial biofungicide Serenade® ASO (Bacillus amyloliquefaciens QST 713; ASO) were also tested. Three concentrations of each antifungal (HOR, ASO, and CIMO-BCA1) were faced with Gs in the growth study in a chestnut-based medium. The intermediate concentrations were used for the analyses of metabolites by LC-MS/MS. CIMO-BCA1 was also identified as B. amyloliquefaciens. All agents reduced the mould’s growth, and the CIMO-BCA1 treatment with an intermediate concentration was the most effective. The metabolite analysis revealed, for the first time, the production of two mycotoxins by Gs, including 3-nitropropionic acid and diplodiatoxin. Additionally, HOR stimulated the production of diplodiatoxin. In conclusion, Gs could present a health risk for consumers. B. amyloliquefaciens strains effectively decreased the mould’s growth, but they must be applied at effective concentrations or in combination with other strategies to completely reduce the hazard.

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