Exploitation of agro-industrial by-products for recovery of bioactive compounds with applications in pest management

Vlachou, P; Holeba, M; Termentzi, Aikaterini; Markellou, Emilia; Ntalli, Nikoletta; Skaltsounis, LA; Fokialakis, Nikolas

doi:10.1055/s-0036-1596819

Cited by 1 publication

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“…Mhaisgawali et al [46] assessed the antibacterial activity of pomegranate bark against E. chrysanthemi and X. malvacearum, finding efficacies in terms of DZI values similar to those of streptomycin. Truchado et al [47] reported that pomegranate extract at 20 µg•mL −1 caused significant inhibition of E. carotovora quorum-sensing signals, and Vlachou et al [48] found that pomegranate extracts showed good control of E. carotovora pv. atroseptica and Xanthomonas spp.…”

Section: Comparison Of the Microbicidal Activity Of The Extractmentioning

confidence: 99%

Dwarf Pomegranate (Punica granatum L. var. nana): Source of 5-HMF and Bioactive Compounds with Applications in the Protection of Woody Crops

Sánchez-Hernández

Buzón-Durán

Cuchí

et al. 2022

Plants

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While the properties of edible pomegranate varieties have been widely explored, there is little information on ornamental types. In this study, possible alternatives for the valorization of dwarf pomegranate fruits have been explored. The characterization of their hydromethanolic extract by gas chromatography−mass spectrometry evidenced the presence of high contents of 5-hydroxymethylfurfural (a carbon-neutral feedstock for the production of fuels and other chemicals) and β- and γ-sitosterol stereoisomers. The microbicidal activity of the crude extract, both alone and in a conjugate complex with chitosan oligomers (COS), was investigated against three plant pathogenic microorganisms that cause significant losses in woody crops: Erwinia amylovora, E. vitivora, and Diplodia seriata. In in vitro assays, a strong synergistic behavior was found after conjugation of the bioactive constituents of the fruit extract with COS, resulting in minimum inhibitory concentration (MIC) values of 750 and 375 μg·mL−1 against E. amylovora and E. vitivora, respectively, and an EC90 value of 993 μg·mL−1 against D. seriata. Hence, extracts from the non-edible fruits of this Punicaceae may hold promise as a source of high value-added phytochemicals or as environmentally friendly agrochemicals.

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Section: Comparison Of the Microbicidal Activity Of The Extractmentioning

confidence: 99%