High-performance liquid chromatography (HPLC) coupled to a diode-array detector (DAD) and electrospray ionization mass spectrometry (MS) was applied for the separation and identification of phenolic compounds in the n-hexane, ethyl acetate and methanol crude extract of Barbacenia blanchetii. The MS, MSn and UV data together with chemosystematic evidence allowed the structural characterization of five compounds: tricin, chrysoeriol, epi-gallocatechin, kaempferol 3-O-glucoside and caffeoylquinic acid. At the same time, these extracts were evaluated against butyrylcholinesterase using Ellman's method.
View Article and Find Full Text PDFBackground: Naringin is an important flavanone with several biological activities, including antioxidant action. However, this compound shows low solubility in lipophilic preparations, such as is used in the cosmetic and food industries. One way to solve this problem is to add fatty acids to the flavonoid sugar unit using immobilized lipase.
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