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    Home > Biochemistry News > Plant Extracts News > Peach-to-tint

    Peach-to-tint

    • Last Update: 2020-06-12
    • Source: Internet
    • Author: User
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    Extraction Source: This product is the alcohol-lifting dry powder extracted from the reflux of the branch ethanol of the rose-vine peach Prunus persica (L.) Batschcharacter" this product is yellow-brown to sepia powder, the active ingredient seofa soluble in methanol, ethanol"Identification" take this product with methanol to make 5% solution for test ingeTake the peach branch standard control of the medicinal herbs 1.0g with methanol 30 ml, ultrasonic extraction for 30 minutes, the filter concentrated to 1 ml of control liquidTake the above two liquid each 10 sl, respectively, at the same silicone G-0.4% sodium acetate plate, to xylene-acetate-acetate (5:4:1) to expand, spray 5% aluminum iii-aluminum chloride ethanol solution, UV lamp 365nm inspectiontake the above-mentioned two liquid 10 sl, respectively, on the same silicone G board, with ethyl acetate-butylketone-acid-water (6:3:1;1), spray5% aluminum iii-aluminum chloride ethanol solution, UV lamp 365nm inspectionmore than two plates, fluorescent spots corresponding rate of 80%Starch: No positive reaction (Appendix II)Moisture: No more than 5.0% (Appendix IX.H)Ash: No more than 4.0% (Appendix IX)K) heavy metalsheavy metals: no more than 10ppm (Appendix IX.E)arsenic salts: no more than 2ppm (Appendix IX.F)dextrin: No more than 2.0% (Appendix IV)methanol residues: not more than 0.001% (Appendix IX T)"Leach) asofalcohol-soluble leachate (Appendix X A) of thermal leaching, not less than 95%function sift, kill insects storage is cool, dry and light-proof
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