Journal
BIOMOLECULES
Volume 10, Issue 5, Pages -Publisher
MDPI
DOI: 10.3390/biom10050723
Keywords
anti-hypochlorite activity; fluorescent probes; coumarin sensors; ABTS; green synthesis; acai; goji; schisandra; super-foods; antioxidants
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Funding
- Institute of Soil Science and Plant Cultivation-State Research Institute in Pulawy
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The anti-hypochlorite activity of acai (Euterpe oleracea Mart.), goji (Lycium barbarum L.) and schisandra (Schisandra chinensis) fruit extracts were assessed by determining the reactive chlorine species (RCS)-scavenging ability of these three super-food berries. In addition, the aqueous extracts obtained were employed as both the media and the catalyst in a green chemistry approach to the synthesis of a coumarin-based fluorescence turn-off sensor, which was then used for anti-hypochlorite activity testing. The aqueous extracts were also assessed for total phenolic content (TPC), using the Folin-Ciocalteu method, and the antioxidant activity using the ABTS(+center dot) assay. Moreover, the main water-soluble polyphenolic constituents of the extracts were identified by the HPLC-PDA-ESI-MS technique. Among the extracts tested, acai demonstrated the highest anti-hypochlorite and antioxidant activities, while the highest TPC value was found for the goji extract. All extracts demonstrated modest catalytic activity as Knoevenagel condensation catalysts.
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