Brown element
-
Last Update: 2020-06-15
-
Source: Internet
-
Author: User
Search more information of high quality chemicals, good prices and reliable suppliers, visit
www.echemi.com
Extractsource: This product is the pigment extracted from the leaves of Camellia Plant Tea ComeLlia sinensis (L.) O.Ktze., with a total tea flavonin content of more than 80%main ingredients: tea-yellow intheaflin, content: 50%p style"text-style"text-center; "align alt" "tea pigment" src"/uploads/allimg/1611211U1U07.jpg"style"width: 308px; Height: 310px;isotheaflavintea jaundic acidtea flayonoic theaflacid theaflacidtable tea prothanics Epitheaflavic acidcontent: 30%the product is yellow to orange yellow powder, wetting, irritating odor, soluble in methanol, ethanol, acetone, hot wateridentification" take this product with acetone to make 0.5% solution for determinationTake tea flavonoid, tea fleic acid and other standard products with acetone to make each ingredient content of 2mg/ml solution for controlTake the standard control of black tea with the medicinal 0.5g with acetone 5 ml, ultrasonic vibration lift 30 minutes, filtration, as control liquid(1) take the above three liquids each 10 sl, respectively, on the same silicone G board, to oil ether -ethyl acetate (85:15), spray 10% iron trichloride solution and 1% iron potassium cyanide water solution equivalent mixtureThe corresponding position of the standard speckle appears blue-purple spots, compared to the standard medicinal spots, the corresponding position shows the same color spots(2) take the above three liquid s10 sl, respectively, point on the same silicone H-CMC board, to ethyl acetate-acetate-water-methanol (7:2:3:0.4) to expand, under daylight inspection, the corresponding position of the label spots show the same color spots" Dry weightlessness: No more than 6.0% (Appendix IX.G)burning residue: Not more than 0.8% (Appendix IX J Heavy metals: no more than 10ppm (Appendix IX.E) (content determination) according to high-efficiency liquid chromatography (appendix VI D) to determine chromatography conditions C18 pillar flow phase: A for 2% acetic acid, B for ethyl acetate (21:3) gradient elution detection wavelength: 280nm flow rate: 0 8ml/min bar temperature: 40C-style"text-align: center; " img alt" "tea pigment" src"/uploads/allimg/161111262120292J.jpg" style"style"width: 470px; Height: 124px; . function: blood lipid reduction, anti-atherosclerosis, anticoagulant, improve microcirculation, antioxidant, anti-aging, enhanced immunity, anti-caries, anti-cancer storage is cool, dry and light-proof
This article is an English version of an article which is originally in the Chinese language on echemi.com and is provided for information purposes only.
This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of
the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed
description of the concern or complaint, to
service@echemi.com. A staff member will contact you within 5 working days. Once verified, infringing content
will be removed immediately.