Changes in bioactive components related to the harvest time from the spicas ofPrunella vulgaris

Variation in concentrations of major bioactive compounds in Prunella vulgaris L. related to plant parts and phenological stages

“…This phenomenon may be due to the rapid consumption of nutrients by the developing reproductive organs, which would cause a rapid decrease of these bioactive components in the stems and leaves. We determined that the RA, UA and OA levels in mature P. vulgaris spicas were 37.64, 2.58, and 0.78 mg/g, respectively (Chen et al, 2012). These observations indicated that the decrease of RA, UA and OA content in the stems and leaves is closely related to the reproductive growth of P. vulgaris.…”

“…Recent studies have demonstrated that methanol or water extracts of this herb exhibit many bioactive properties, including antihyperglycemic activity (Zheng et al, 2007), UV-A radiation photoprotection (Psotova et al, 2006), systemic anaphylaxis inhibition (Kim et al, 2007), immune modulation (Fang et al, 2005) and antioxidative, antiviral and antibacterial eff ects (Psotova et al, 2003). In addition to the pharmaceutical uses of P. vulgaris, the air-dried plants are used as an additive in some functional beverages, and the fresh leaves are also edible and often show up in vegetable recipes in southeast China (Chen et al, 2011;Chen et al, 2012).…”

Optimisation of Potassium Chloride Nutrition for Proper Growth, Physiological Development and Bioactive Component Production in Prunella vulgaris L

“…This is a thermophilic and hygrophilous species that is native to eastern Asia, which is most heavily distributed in the middle, south-eastern and south-western provinces and regions of China [2]. It can often be found in ravines, stream sides, forests, wet meadows, slopes, thickets, field margins, trail sides, roadsides or ditch banks in the provinces of southern China [3], [4].…”

Effects of ammonium to nitrate ratio on growth, nitrogen metabolism, photosynthetic efficiency and bioactive phytochemical production ofPrunella vulgaris

“…Although many studies have reported the pharmacological properties of P. vulgaris, agronomic practices for obtaining optimal biomass, physiological attributes, and phytochemical production of this plant remain poorly understood (Chen et al, 2012(Chen et al, , 2013, especially with regard to the effects of N source on growth performance, physiological development, and bioactive phytochemical accumulation. In our previous study (Yu et al, 2011), we explored the response of P. vulgaris growth and photosynthetic characteristics to N source.…”