Name | laminarin |
Synonyms | CURDLAN laminarin PARAMYLON Laminaran BETA-GLUCAN BETA-1,3-GLUCAN BETA-D-1,3-GLUCAN BARLEY BETA-GLUCAN laminarin from laminaria digitata Laminaran - from Laminaria digitata Laminaran - from Thallus laminariae Laminaran - from Laminaria cloustoni |
CAS | 9008-22-4 |
EINECS | 232-712-4 |
InChI | InChI=1/C18H32O16/c19-1-4-7(22)10(25)11(26)17(31-4)34-15-9(24)6(3-21)32-18(13(15)28)33-14-8(23)5(2-20)30-16(29)12(14)27/h4-29H,1-3H2/t4-,5-,6-,7-,8-,9-,10+,11-,12-,13-,14+,15+,16?,17?,18?/m1/s1 |
Molecular Formula | C18H30O14X2 |
Molar Mass | 470.42 |
Density | 1.8g/cm3 |
Melting Point | >220°C (dec.) |
Boling Point | 902.8°C at 760 mmHg |
Specific Rotation(α) | -45 ° (C=0·9, H2O) |
Flash Point | 499.8°C |
Water Solubility | Soluble in dimethyl sulfoxide (slightly, heated). Slightly soluble in water. |
Solubility | Soluble in water (10 mg/ml). |
Vapor Presure | 0mmHg at 25°C |
Appearance | powder |
Color | White to Off-white |
Merck | 14,5350 |
Storage Condition | Inert atmosphere,Room Temperature |
Sensitive | Easily absorbing moisture |
Refractive Index | 1.673 |
MDL | MFCD00466918 |
Physical and Chemical Properties | Physical properties: The dried crude polysaccharide is a yellowish-brown massive solid with a sea smell. After H2O2 decolorization, lyophilized to obtain white fibrous solid, soluble in water, soluble in hot water, insoluble in acid and alkali, insoluble in high concentration of ethanol, methanol, acetone and other organic solvents, no volatility, pH value of 6.5, specific rotation of [α]D20 =-1.25 °(c = 0.80, H2O). Chemical properties: sulfuric acid-carbazole reaction is positive, indicating uronic acid; phenol-sulfuric acid reaction is positive, proving to be a carbohydrate; ferric chloride reaction is negative, indicating no phenols or tannins; biuret reaction is negative, Proved that it does not contain protein substances; iodine-potassium iodide reaction is negative, indicating that it does not contain starch substances. |
Safety Description | S22 - Do not breathe dust. S24/25 - Avoid contact with skin and eyes. |
WGK Germany | 3 |
RTECS | LZ3985000 |
FLUKA BRAND F CODES | 3 |
TSCA | Yes |
HS Code | 39139000 |
Reference Show more | 1. He Tao, Zhao Na. Effects of three kinds of polysaccharides on hatching rate of eggs in chicken semen diluent [J]. Hubei Journal of Animal Husbandry and Veterinary Medicine, 2018, 039(001):5-7. 2. Chen Min, Wang Li-Xia star, etc. Effects of β-Aminobutyric acid treatment on reducing potential of postharvest peach fruit and induction of disease resistance [J]. Food Science, 2019, 40(01):217-223. 3. Zhang Qiongqiong, Wei Jia, Zhang Jian, etc. Effects of hydrogen sulfide fumigation on cell wall and diseases of postharvest seedless grapes [J]. Science and Technology of food industry, 2020(13). 4. Yin Xiaoqian, Liang Meifang, Li Hebin, Jiang Zedong, ni hui, Zhu Yanbing. Enzymatic properties of polysaccharide from microvesicular bacteria ALW1 Laminaria and antioxidant activity of its hydrolysates [J]. Chinese Journal of Food Science, 2020,20(09):47-52. 5. He Tao, Zhao Na, Guo Liang, Ma Xueli. Effects of three kinds of polysaccharides on hatching rate of eggs in chicken semen diluent [J]. Livestock and poultry industry, 2020,31(12):34-35. 6. Dongxiao Cui, Jun Ma, Tingting Liang, Liqian Sun, Liqiang Meng, Taigang Liang, Qingshan Li, Selenium nanoparticles fabricated in laminarin polysaccharides solutions exert their cytotoxicities in HepG2 cells by inhibiting autophagy and promoting apoptosis, 7. Yang, Juanjuan, Changchun Hao, and Runguang Sun. "Effect of Laminaria japonica polysaccharides on lipids monolayers at the air-water surface." Colloids and Surfaces B: Biointerfaces 161 (2018): 614-619.https://doi.org/10.1016/j.colsurfb.2017.11.041 8. Yang, Juanjuan Changchun Hao, and Runguang Sun. "Effect of Laminaria japonica polysaccharides on lipids monolayers at the air-water surface." Colloids and Surfaces B: Biointerfaces 161 (2018): 614-619.https://doi.org/10.1016/j.colsurfb.2017.11.041 9. [IF=5.162] Dongxiao Cui et al."Selenium nanoparticles fabricated in laminarin polysaccharides solutions exert their cytotoxicities in HepG2 cells by inhibiting autophagy and promoting apoptosis."Int J Biol Macromol. 2019 Sep;137:829 10. [IF=2.316] Zhu Zhu et al."Three glycoside hydrolase family 12 enzymes display diversity in substrate specificities and synergistic action between each other."Mol Biol Rep. 2019 Oct;46(5):5443-5454 11. [IF=4.223] Zha Zi-Qian et al."Asn57 N-glycosylation promotes the degradation of hemicellulose by β-1,3-1,4-glucanase from Rhizopus homothallicus."Environ Sci Pollut R. 2022 Apr;:1-15 |