Ultrasound assisted extraction of total phenolics from Cassia auriculata leaves and evaluation of its antioxidant activities

Direct ultrasound-assisted extraction and characterization of phenolic compounds from fresh houseleek (Sempervivum marmoreum L.) leaves

“…Similar results have been obtained for UAE of phenolic compounds from Cassia auriculata [41], curry [42], and fresh tulsi leaves [43].…”

Optimization of ultrasonic-assisted extraction of pigment from Dioscorea cirrhosa by response surface methodology and evaluation of its stability

“…The shapes of the surface and contour plots indicate whether the interaction between variables is signicant or not. 51 The response surface plots based on this model are shown in Fig. 3, two variables vary at the same time, while the third variable is kept constant.…”

Ultrasonic-extraction of phenolic compounds from Phyllanthus urinaria: optimization model and antioxidant activity

“…The phenolic weight in the supernatant was measured by Folin-Ciocalteu method (Sharmila et al, 2016). 2.5 mL of tenfold diluted Folin-Ciocalteu reagent, 2 mL of aqueous sodium carbonate (75 g/L) and 0.5 mL of the diluted supernatant were mixed and reacted in a water bath at 50 °C for 5 min, and then the mixture was cooled to room temperature to determine the absorbance at 760 nm by a UV-vis spectrophotometer (UVmini-1240, Shimadzu, Japan).…”