AI Article Synopsis

  • This study focused on extracting valuable bioactive compounds from strawberry pomace, leftover after pressing strawberries for juice, which can be useful for creating functional food ingredients.
  • The researchers compared two extraction methods—conventional solid-liquid extraction (SLE) and pressurized liquid extraction (PLE)—using ethanol and water to assess the composition and health benefits of the extracts.
  • Results indicated that both extraction methods produced extracts with strong antioxidant properties and beneficial effects on human cells, highlighting the potential of strawberry pomace for producing high-nutritional-value products.

Article Abstract

Pressing strawberries for juice generates large amounts of pomace, containing valuable nutrients and therefore requiring more systematic studies for their valorization. This study compared conventional solid-liquid (SLE) and pressurized liquid (PLE) extractions with ethanol (EtOH) and HO for the recovery of bioactive compounds from strawberry pomace. The composition and bioactivities of the products obtained were evaluated. Among 15 identified compounds, quercetin-3-glucuronide, kaempferol-3-glucuronide, tiliroside, ellagic, malic, succinic, citric and -coumaric acids were the most abundant constituents in strawberry pomace extracts. SLE-EtOH and PLE-HO extracts possessed strong antioxidant capacity in DPPH and ABTS scavenging and oxygen radical absorbance capacity (ORAC) assays. Cytotoxicity, antiproliferative and cellular antioxidant activities in human cells of PLE-EtOH and PLE-HO extracts were also evaluated. PLE-EtOH and PLE-HO extracts possessed strong antioxidant activity, protecting Caco-2 cells upon stress stimuli, while PLE-EtOH extract showed higher antiproliferative activity with no cytotoxicity associated. In general, the results obtained revealed that properly selected biorefining schemes enable obtaining from strawberry pomace high nutritional value functional ingredients for foods and nutraceuticals.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8392826PMC
http://dx.doi.org/10.3390/foods10081780DOI Listing

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