Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2022 May 7;27(9):3000.
doi: 10.3390/molecules27093000.

Phytochemical Compositions and Antioxidant Activities of Essential Oils Extracted from the Flowers of Paeonia delavayi Using Supercritical Carbon Dioxide Fluid

Xiao Yu  1 , Huaibi Zhang  2 , Juan Wang  3 , Junming Wang  4 , Zhenxing Wang  5 , Jinbo Li  6
Affiliations

Phytochemical Compositions and Antioxidant Activities of Essential Oils Extracted from the Flowers of Paeonia delavayi Using Supercritical Carbon Dioxide Fluid

Xiao Yu et al. Molecules. .

Abstract

Essential oils were extracted from dark-purple, red and yellow petals of Paeonia delavayi using Supercritical Carbon Dioxide method. The compositions of essential oils were analyzed using gas chromatography-mass spectrometry (GC-MS). Antioxidant activity assays were carried out using DPPH, ABTS- and FRAP methods. Total polyphenols and total flavonoids were measured to evaluate the in vitro antioxidant activity in addition to the volatile compounds contained in the essential oils extracted from the flower petals of P. delavayi with the three flower colors. A total of 194 compounds were detected from essential oils of P. delavayi flowers, including 83 in dark-purple petals, 90 in red petals and 80 in yellow petals. These compounds mainly include alcohols, aldehydes, ketones, alkenes, alkanes, esters and polyphenols. The results showed that the volatile compounds accumulated differentially among the essential oils from the different colors of flower petals. Principal component analysis (PCA) indicated that essential oils derived from dark-purple and red petals were more closely clustered while the yellow petal essential oil was very different with both the purple-red and red. Antioxidant assays suggested that the radical scavenging activity and the iron reduction antioxidant activity in the essential oils were highly correlated with the flower petal colors. These results suggest P. delavayi flower petals are potentially good resources for high quality essential oils and natural antioxidants.

Keywords: Paeonia delavayi; antioxidant activity; essential oil; flower colors.

PubMed Disclaimer

Conflict of interest statement

No potential conflict of interest was reported by the authors.

Figures

Figure 1
Figure 1
Comparison of number and content of different types of compounds in P. delavayi essential oil with different flower colors. (A): Number of compounds. (B): Content percentage of compound. Different lowercase letters in the same class of compounds in the figure indicate significant differences (p < 0.05).
Figure 2
Figure 2
Sample score chart.
Figure 3
Figure 3
Load diagram of 11 components on the principal component.
Figure 4
Figure 4
Comparison of the DPPH radical scavenging activities of the essential oil for different colors of P. delavayi flowers.
Figure 5
Figure 5
Comparison of the ABTS radical scavenging activity of essential oil for different colors of P. delavayi flowers.
Figure 6
Figure 6
Ferric reducing antioxidant power of essential oil for different colors of P. delavayi flowers.
See this image and copyright information in PMC

Similar articles

See all similar articles

Cited by

References

    1. Shi Q.Q., Zhou L., Wang Y. Transcriptomic Analysis of Paeonia delavayi Wild Population Flowers to Identify Differentially Expressed Genes Involved in Purple-Red and Yellow Petal Pigmentation. PLoS ONE. 2015;10:e0135038. doi: 10.1371/journal.pone.0135038. - DOI - PMC - PubMed
    1. Hong D., Pan K. Taxonomical history and revision of Paeonia sect. Moutan (Paeoniaceae) J. Syst. Evol. 1999;37:351–368.
    1. Hua M., Ma H., Tan R., Yuan X., Chen J., Yang W. Determination of anthocyanins and flavonols in Paeonia delavayi by high-performance liquid chromatography with diode array and mass spectrometric detection. Anal. Lett. 2018;51:2331–2339. doi: 10.1080/00032719.2017.1423322. - DOI
    1. Wu S.H., Chen Y.W., Li Z.Y., Yang L.Y., Li S.L. Chemical constituents from the root bark of Paeonia delavayi. Chem. Natur. Compd. 2009;45:597–598. doi: 10.1007/s10600-009-9379-x. - DOI
    1. Tao A.E., Zhao F.Y., Xia C.L. The complete chloroplast genome sequence of the medicinal plant Paeonia delavayi Franchet. (Paeoniaceae) Mitochondrial DNA Part B-Resour. 2019;4:3553–3555. doi: 10.1080/23802359.2019.1677528. - DOI - PMC - PubMed

LinkOut - more resources