Abstract: The disclosure relates to the technical field of food and medical chemical production, and provides a method of preparing an extract of chayote. The method includes: step 1, adding water and a pretreatment agent of ethoxylated p-tert-octylphenol to a chayote powder to obtain a pretreatment mixture; step 2, adding a stabilizer and a cellulase to the pretreatment mixture to perform an enzymolysis treatment to obtain an enzymatic hydrolysate, and centrifuging the enzymatic hydrolysate to obtain a crude extraction liquid; step 3, concentrating the crude extraction liquid to obtain a concentrate, purifying and drying the concentrate to obtain the extract of chayote.

Abstract: A method of extracting myricetin from Xanthoceras sorbifolia Bunge is provided. The method includes: step 1, baking obtaining Xanthoceras sorbifolia Bunge crude powder; step 2, mixing the crude powder with a counter-current extraction solution to perform a counter-current extraction to obtain a filtrate and a filter residue; step 3, mixing the filter residue with a solvent to obtain a first mixture, and heating the first mixture to reflux for extraction to obtain an extraction liquid; step 4, mixing the extraction liquid and the filtrate, and concentrating under reduced pressure to obtain a concentrated solution; and step 5, separating and eluting the concentrated solution to obtain an eluent, then drying the eluent to obtain the myricetin.

Abstract: The disclosure relates to the technical field of extraction of an active ingredient from traditional Chinese medicine, and provides a method of extracting myricetin from Xanthoceras sorbifolia Bunge.