Leaf water lift

Extraction Source: This product is eriobotrya japonica (Thunb.) Lindl.'s leaves are fried to extract dried powder from watercharacter" this product is yellow-green to yellow-brown powder, the active ingredients are soluble in methanol, ethanol, acetone"Identification" take this product with methanol to make 5% solution for test ingeTake leaves standard control of 1.0g of heated water 40 ml, 80 oC ultrasound extraction 30 minutes, the filter steamed dry, residue plus methanol 1 ml to dissolve as a control fluidTake the above two liquid s10 sl each, respectively, point on the same silicone G board, one point five plate(1) to chloroform-ethyl acetate-methanol-ice acetic acid (20:4:1:1) to expand, spray2% of metformin formaldehyde sulfuric acid test liquid, hot wind show(2) is expanded with 36% acetic acid, sprayed with 5% aluminum tetrachloride ethanol solution, UV lamp 365nm under inspection(3) to luxhenyl-acetone (5:1), sprayed 10% sulfuric ethanol solution, hot wind(4) with chloroform-ethyl acetate-isopropanol (1:3:1) is expanded, sprayed 1% vanilla aldehyde ethanol solution -3% perchlorate solution (1:1) mixture, hot air is indicated(5) is expanded in cyclohexane-chloroform-ethyl acetate-acetate (4:1:1:0.1), examined at 365nm, and then sprayed with 0.05% brothanol blue solutionmore than five plates, fluorescent spots and visible spots corresponding rate of 80%Starch: No positive reaction (Appendix II)Moisture: No more than 6.0% (Appendix IX)H)Gray score: no more than 4.0% (Appendix IXK)Heavy Metals: No more than 10ppm (Appendix IX.E) arsenic salts: No more than 2pprn (Appendix IX.F) dextrin: No more than 2.0% (Appendix IV) Extraction Source) 5% hot water solution is not precipitated, 5% ethanol solution has insoluble precipitation leaching, the leaching rate is not less than 95% asmeasured by the thermal leaching method (Appendix XA) under the water-soluble leachate method the function of coughing, sputum, flat wheezing, antibacterial storage is cool, dry and light-proof