Seasonality Affects the Phenolic Composition and Erythroprotective Activity of Ora-Pro-Nobis (Pereskia aculeata) Leaves.

ABSTRACT: Ora-pro-nobis (OPN) is a food plant with polyphenol-rich leaves. However, the influence of seasonality on their quantitative phenolic composition and how it impacts their bioactivities is unknown. OPN leaves were harvested throughout 12 months, and their individual phenolic content, antioxidant activity, and erythroprotection were assessed. The highest total phenolic content was recorded in September (736 mg GAE/100 g), and the lowest in October (104 mg GAE/100 g). September also exhibited the highest rutin and protocatechuic, p-coumaric, and caffeic acids concentrations. Rutin was the major compound throughout the year. Protocatechuic acid contents were correlated with the air relative humidity, solar radiation incidence, and air temperature. June sample presented the best 2,2-diphenyl-1-

SUBMITTER: Cruz TM 

PROVIDER: S-EPMC12860515 | biostudies-literature | 2026 Feb

REPOSITORIES: biostudies-literature