Optimization of Ultrasound-Assisted Extraction of Leaves: Maximal Phenolic Yield and Antioxidant Capacity.

() is a medicinal plant with secondary metabolites such as phenolics, flavonoids, glycosides, saponins, and alkaloids. This study was designed to optimize the ultrasonic-assisted extraction (UAE) parameters to enhance the phenolic content and characterize the phenolic compounds using ultra-high-performance liquid chromatography, coupled with electrospray ionization quadrupole time-of-flight tandem mass spectrometry (UHPLC-ESI-QTOF-MS/MS), and antioxidant activities in extract. Extraction time, sample-to-solvent ratio, and extraction temperature were considered for UAE optimization.

Cereal- and Fruit-Based Ethiopian Traditional Fermented Alcoholic Beverages.

Traditional fermented alcoholic beverages are drinks produced locally using indigenous knowledge, and consumed near the vicinity of production. In Ethiopia, preparation and consumption of cereal- and fruit-based traditional fermented alcoholic beverages is very common. , , , , , , , , and are among the popular alcoholic beverages in the country.

Effect of Ultrasound-Assisted Extraction of Leaves on Bioactive Compounds and Their Antioxidant Activity.

is a multipurpose plant having high nutritional and medicinal values. The aim of this study is to evaluate the effect of time and temperature of ultrasound-assisted extraction on bioactive compounds and antioxidant activities of leaf extract. The ultrasound-assisted extraction took place at each of 30, 40 and 50 °C for 10, 20 and 30 min.