[product name]: Astragalus Extract
[English name]: Astragalus Root Extract
[extract part]: This product is the dried root of Astragalus mongholicus or Astragalus membranaceus.
[Specification]: astragaloside A: 0.3% - 98%; astragalus polysaccharide: 10-70%; 10:1, 20:1, 30:1, 50:1
[appearance character]: brown yellow to white powder
[test method]: HPLC / UV
[shelf life]: two years
[package description]: double plastic bag plus cardboard barrel (25kg / barrel)
[introduction to Astragalus]:
The main effective components of Astragalus are polysaccharides and astragaloside. Astragaloside is divided into astragaloside Ⅰ, astragaloside Ⅱ and astragaloside Ⅳ. The best biological activity is astragaloside IV, astragaloside a. Astragaloside a not only has the effect of Astragalus polysaccharides, but also has some incomparable effects. Its efficacy is more than 2 times of that of conventional astragalus polysaccharides, and its antiviral effect is more than 30 times of that of Astragalus polysaccharides. Because of its low content and good effect, it is also known as "super astragalus polysaccharide".
[plant properties]:
Herbs perennial, height 50-80 cm. The main root is long, rod-shaped, slightly woody. The dry roots are cylindrical, with few differences. The upper end is thick, the lower end is thin, the two ends are flat, 20-70cm long, 1-3cm thick, and the surface is grayish yellow or light brown. All of them have irregular longitudinal wrinkles or grooves. The air is weak and special, the taste is slightly sweet, and the chewing is beany. The flowering period is from June to July, and the fruiting period is from August to September. Mining in autumn.
[chemical composition]:
One Flavonoids: Astragalus mongholicus root contains quercetin, kaempferol, isorhamnetin, rhamnetin, formononentin, calycosin, 7-o-β-d-glucoside, 7-o-β-d-glucoside, 6 "- o-malonyl ester, 9,10-dimethoxypterosane-3-o-β-o-glucoside, (6aR, 11ar) - 3-hydroxy-9,10-dimethoxypterocarpus Flavonoids (6aR, 11ar) - 10-hydroxy-3, 9-dimethoxy-purpurine, awntiflorin-7-o-β-d-glucoside-6 "- o-malonyl ester, dalbergenin glucoside-6 '- o-malonyl ester, isoxanthan glucoside-6' - o-malonyl ester.
2. Saponins: astragaloside Ⅰ, Ⅱ, astragaloside Ⅰ to Ⅷ and Soyasaponin Ⅰ are contained in Astragalus membranaceus, among which astragaloside Ⅰ and astragaloside Ⅳ are the same compound. Astragaloside Ⅰ, Ⅱ, Ⅳ and carotene were found in Astragalus mongholicus.
3. Polysaccharides: Astragalus membranaceus contains Astragalus Ⅰ - Ⅲ (APS1, 2, 3), glucose AG-1, AG-2, heteropolysaccharide AH-1, ah-2, etc.
4. Amino acids: mainly proline, including γ - aminobutyric acid, asparagine, arginine, aspartic acid, cystine, glycine, serine, etc.
5. Organic acids: ferulic acid, isoferulic acid, p-hydroxyphenylacrylic acid, caffeic acid, chlorogenic acid, palmitic acid, linolenic acid and linoleic acid. There are other trace elements, riboflavin, folic acid, vitamin P, sitosterol, lupitol, hexadecanol, etc.
[extraction process]:
Dry the raw materials of astragalus root, wash, dry, crush, 10 times the amount of water, heat and boil to extract three times, 2 hours each time, combine three times the extract, concentrate the evaporated water to the extract with the specific gravity d = 1.20, put it in a cool place, put the extract in an ethanol stir, put it in a static state for sedimentation, centrifugate the precipitate, continue to put it in an ethanol stir, put it in a static state for centrifugation, get Astragalus crude polysaccharide, remove the protein with a mixed solvent The pure astragalus polysaccharide is obtained from the qualitative and mucinous components.