Argentinian Rose Petals as a Source of Antioxidant and Antimicrobial Compounds
- PMID: 38611283
- PMCID: PMC11012100
- DOI: 10.3390/foods13070977
Argentinian Rose Petals as a Source of Antioxidant and Antimicrobial Compounds
Abstract
The total phenolic, flavonoid, and anthocyanin contents were evaluated in 11 cultivars of Argentinian roses of different colors. HPLC-ESI-QTOF/MS was used to identify the components where ellagic and quinic acids, quercetin, and kaempferol glycosylated derivatives were found. The phenolic contents ranged from 78.8 ± 3.2 to 203.4 ± 3.1 mg GAE/g dw, the flavonoid content ranged from 19.1 ± 3.8 to 125.9 ± 6.5 mg QE/g dw, and the anthocyanin content ranged from less than 0.01 to 5.8 ± 0.1 mg CE/g dw. The dark red cultivars exhibited the greatest levels of the analyzed compounds and of the antioxidant activities, even higher than those of certain plants known for their high phenolic contents and antioxidant activity. Moreover, the addition of these extracts decreased the population of L. innocua and P. aeruginosa to undetectable levels 24 h after inoculation. Rose petal extracts, mainly those with a dark red color, can be used as natural additives in food, feed, and cosmetics, as they contain a high proportion of bioactive compounds with antioxidant and antimicrobial effects.
Keywords: HPLC-ESI-QTOF/MS; antimicrobial; antioxidant; bioactive compounds; rose petals.
Conflict of interest statement
The authors declare no conflicts of interest.
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- National Agency of Scientific and Technical Research (grant number: PICT-2020-00437)/the National Agency of Scientific and Technical Research (grant number: PICT-2020-00437)
- European Regional Development Fund (grant number: ED431C 2018/05)./European Regional Development Fund (grant number: ED431C 2018/05).
- National Research Council of Argentina, CONICET (grant number: 11220200100 114CO)/National Research Council of Argentina, CONICET (grant number: 11220200100 114CO)
- Universidad de Buenos Aires (grants 20020170100339BA and 20020220200033BA/Universidad de Buenos Aires (grants 20020170100339BA and 20020220200033BA
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