Insights into the Phytochemical Composition and Bioactivities of Seeds from Wild Peony Species

Abstract

Peony is an important medicinal and ornamental plant widely cultivated in the world. Its seeds as a functional food source have attracted much more attention in recent years, and they are rich in monoterpene glycosides and phenolic compounds. To assess the application value of wild peony seeds, the main chemical composition and content, such as total phenolic content (TPC), total flavonoid content (TFC), total flavanol content (TAC), and α and γ tocopherol content, of the seeds from 12 species and 2 subspecies were systematically explored in the present study. Four different antioxidant assays (DPPH, ABTS, FRAP, and HRSA), antibacterial, and antifungal assays were also performed using various in vitro biochemical methods. The results showed that the seeds of P. delavayi, P. obovata. subsp. obovata, and P. rockii. subsp. rockii had a high content of TPC, TFC, and TAC, respectively. Twenty-five individual chemical compounds were qualitatively and quantitatively measured by HPLC-MS, with paeoniflorin being the most abundant compound in all samples. P. mairei was grouped individually into a group via hierarchical cluster analysis according to its relatively highest monoterpene glycosides and TPC content. This work has provided a basis for the development and utilization of seeds for the selection of wild peony species of dietary interest.

Nutritional composition, health-promoting effects, bioavailability, and encapsulation of tree peony seed oil: a review

“…The TPC, total flavonoid content (TFC), and total flavanol content (TAC) of peony seeds from different species and their antioxidant activities differ. 66 Among seeds from 12 species and 2 subspecies of wild peonies, Paeonia mairei , Paeonia obovata subsp. willmottiae , and Paeonia anomala subsp.…”

“…veitchii possess the highest TPC (4105.5 mg GAE per 100 g), TFC (1707.3 mg CGE per 100 g DW), and TAC (1395 mg RE per 100 g DW), respectively, indicating that the seeds of these wild peony species have great potential for dietary exploitation. 66…”

Efficacy mechanisms research progress of the active components in the characteristic woody edible oils

“…The phenolic content of P. delavayi and other peony seeds was greater (11.26–41.05 mg GAE/g), flavonoids (3.82–17.07 mg CGE/g DW), flavanols (4.01–13.95 mg RE/g DW), and procyanidin B2 (0.15–1.75 mg/g DW) (Yan et al., 2020). PSO contains phenolic acids and flavonoids, which are mainly rich in benzoic acid (0.010 mg/g) and catechins (0.028 mg/g) (Wang et al., 2023).…”

Remedia Sternutatoria over the Centuries: TRP Mediation

“…The latter was found to activate TRPA1 [98]. Paeoniae (genus) includes paeoniflorin (monoterpene glycoside) as the main active component (Figure 7) [99,100]. It has been reported to exert inhibitory activity against TRPV1 expression and TRPV1-mediated effects [101].…”