AM-H2O (80.0 mg/g) possessed a significantly higher concentration of total flavonoids than AM-EtOH (30.0 mg/g), whereas no difference was noted in the total phenol content between these two extracts.
Effects of Total Flavonoids ofHippophae Rhamnoides L.
Objective: To explore the effects of total flavonoids ofHippophae rhamnoides L.
Levels of total flavonoids did not differ between hosts and non-hosts, in contrast to those of phenolic acids.
The following compounds were analysed: total phenolic compounds (TPC), total flavonoids (TF), inositol hexaphosphate (IP6), reduced (GSH) and oxidized (GSSG) glutathione, tocopherols (T) and tocotrienols (T3).
Objective: To study the effects of total flavone of Abelmoschl Manihot L.
Total flavone accumulation was found to be nearly the same in all three leaf tissues, lower and upper epidermis and mesophyll.
Elevated temperature increased the concentration of total flavone aglycones and decreased that of total HPLC-phenolics in the leaves, due to the decrease in individual flavonol glycosides, cinnamoylquinic acids and (+)-catechin.
A novel method for extraction and separation of total flavones and total astragalosides from Radix astragali
In this paper a novel method for extraction and separation of total flavones and total astragalosides from Radix astragali using a resin method is suggested.
Ethanol is used as the extractant, the macroporous absorption resin modeled H-107 is used to enrich the astragalus extract, and the macroporous strong base anion resin D-280 is used to separate the total flavones and the total astragalosides.
This method allows a good yield of total flavones of 600 mg/100 g Radix astragali, a purity of 94.2%, and a yield of total astragalosides of 28 mg/100 g Radix astragali.
The variation in the major flavones and total flavones is more dramatic between seasons for the Pinot noir.