D-Glucose, O-a-D-galactopyranosyl-(16)-O-a-D-galactopyranosyl-(16)-
Manninotriose
CAS: 13382-86-0
Molecular Formula: C18H32O16
D-Glucose, O-a-D-galactopyranosyl-(16)-O-a-D-galactopyranosyl-(16)- - Names and Identifiers
D-Glucose, O-a-D-galactopyranosyl-(16)-O-a-D-galactopyranosyl-(16)- - Physico-chemical Properties
| Molecular Formula | C18H32O16 |
| Molar Mass | 504.44 |
| Density | 1.75±0.1 g/cm3(Predicted) |
| Boling Point | 952.8±65.0 °C(Predicted) |
| Solubility | Soluble in methanol, ethanol, DMSO and other organic solvents |
| Appearance | White crystalline powder |
| pKa | 12.45±0.20(Predicted) |
| Storage Condition | 2-8°C |
| MDL | MFCD28964039 |
| Physical and Chemical Properties | White crystalline powder, soluble in methanol, ethanol, DMSO and other organic solvents, from Scrophulariaceae plant Rehmannia glutinosa. |
D-Glucose, O-a-D-galactopyranosyl-(16)-O-a-D-galactopyranosyl-(16)- - Reference
| Reference Show more | 1. Zhang Ying, Sun Feifei, Yang Jianing, etc. Establishment of TLC identification method for different processed products of radix rehmanniae [J]. Chinese Journal of Experimental formulology, Volume 26, 2020, 15, 42-149 pages, ISTIC PKU CSCD CA, 2020. 2. Song Linlin, Xue Shujuan, Wang Lili, Zhang Fei, Chen with Qing. Analysis of chemical constituents of radix rehmanniae with different storage years [J]. Chinese traditional medicines, 2020,42(10):2661-2669. 3. [IF = 6.986] Hui He et al."Effective Mass spectral disease of glycanes via Gold Nanoparticle-Assisted in-Source pathology ad trial." Anal Chem. 2019;91(13):8390-8397 |
D-Glucose, O-a-D-galactopyranosyl-(16)-O-a-D-galactopyranosyl-(16)- - Reference Information
| Application | mannotriose is a natural functional oligosaccharide, can be a potent proliferation of human intestinal beneficial bacteria (Bifidobacteria and lactic acid bacteria, etc.), has a good physiological function. |
| preparation | a method for preparing high-purity mannotriose from fresh rehmannia glutinosa, consisting of the following steps: (1) high-temperature processing of fresh rehmannia glutinosa: take 25.0g of fresh rehmannia glutinosa collected, discard the mouldy parts, wash them, cut them into sections with a thickness of 3cm, and heat them to 90 ℃ for 6H; (2) preparation of Mannan trisaccharide sample solution: add the processed product of fresh rehmannia glutinosa obtained in step (1) to water at 70 ℃ for 0.5h at a ratio of 1:2, the residue was further leached once according to the above process, and the extracts were combined and concentrated to 60 in vacuo. The sugar solution of Brix, I .e., a Mannan trisaccharide-like solution, is obtained. (3) alcohol precipitation to obtain Mannan trisaccharide-like liquid alcohol precipitation part: add ethanol to Mannan trisaccharide-like liquid according to the volume ratio of 1:2, at a temperature of 80 deg C for 30min, Natural cooling and allowing to stand for 24h; Alcohol precipitation of Mannan trisaccharide-like liquid; (4) removal of impurities, decolorization and concentration to obtain Mannan trisaccharide-like liquid: the alcohol precipitation Mannan trisaccharide sample solution obtained in step 3 is diluted 10 times with water, and 0.5% activated carbon or macroporous adsorption resin (the ratio of the weight of the sample solution to the volume of the resin is 450g/L) is used. After decolorization, the sample solution was concentrated to 60 at 60 °c after filtration. Brix; (5) gel LH20 column chromatography to obtain Mannan trisaccharide: dilute the Mannan trisaccharide sample solution to 10. Brix, Elution by gel LH20 column chromatography with 25% ethanol, combining fractions containing mannotriose by TLC, concentrating or freeze-drying to give mannotriose, concentrating and drying to give mannotriose 1.1g, the purity was 98.5% and the total yield was 4.4%. |
| biological activity | mannotriose is the main carbohydrate of sesame seeds (Lamium elephant, Labiatae). |
| uses | mannotriose has pharmacological activities such as promoting the proliferation of hematopoietic cells, improving immunity, lowering blood sugar, and anti-tumor. |
Last Update：2024-04-09 15:16:54
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Mobile: 18021002903
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D-Glucose, O-a-D-galactopyranosyl-(16)-O-a-D-galactopyranosyl-(16)-
DI(PROPYLENE GLYCOL) PROPYL ETHER
DI(PROPYLENE GLYCOL) PROPYL ETHER