The medical function of Araceae
Medical function Physical and chemical identification (1) Take a small amount of this product powder, add O.5% hydrochloric acid to slightly moist, place overnight, micro-sublimation, microscopic examination of white crystals. (probably protocatechuic aldehyde) (2) Take a warm water immersion liquid of this product powder, spot it, press circular filter paper chromatography, unfold it with methanol, spray with O.2% ninhydrin solution, dry it at 80°C for 10 minutes, and get a blue-violet color spot. (check amino acids) (3) Thin layer chromatography: Take 1g of this product powder, soak it in 10ml of ethanol for 24 hours. Centrifuge and take the supernatant. Sweep away the ethanol. Add 0.5mol hydrochioric acid to hydrolyze and shake with ether. Distill the ether layer. Concentrate After spotting on silica gel G plate, it was developed with chloroform-methanol-formic acid (9.2:0.6:0.2) and developed with 2% phloroglucinol ethanol-concentrated sulphuric acid (1:1) to protocatechuic aldehyde. Reference product. The sample showed a bright red spot in the corresponding position of the control. Vegetarian Oyster Sauce,Oyster Vegetarian Sauce,Best Vegetarian Oyster Sauce,Vegetarian Oyster Sauce Recipe Desly Foods Co.,Ltd. , https://www.deslygroup.com