??
|
|
?? ??
- ?? ??
- 2-8°C
- ???
- H2O: 10 mg/mL, ???, ??? ???
- ??? ??
- powder
- ??
- white
- ???? ??
- bacterial (Erwinia herbicola)
- optical activity
- -45
- ???
- water: 9.80-10.20mg/mL, cloudy to hazy, colorless to faintly yellow
- CAS ??????
- 9013-95-0
??
| WGK ?? | 3 | ||
|---|---|---|---|
| F ?????? | 3 |
?? C??? ??, ??, ??
??
Levan is a fructose derivative, it is moisturizing and anti-inflammatory, it is also used to help improve skin barrier function.?? ??
Levan is a polysaccharide produced by some microorganisms and plants. It is a non-typical biopolymer composed of fructose units linked by β-(2→6). Levan is an exopolysaccharide (synthesized outside the cell).Biochem/physiol Actions
Levan has various industrial applications like cosmetics, medicine, or nanotechnology. It might exhibit anti-hyperglycemic effect and anti-tumor action, prevent diabetes-induced oxidative stress and increase catalase (CAT) and superoxide dismutase (SOD) in the heart. Levan is also recognized for its immunomodulating and prebiotic actions.?? ?? ?? ? ???
???
?? ??
?? ?? ??
???( 76)?? ??
| ??? | ?? | ??? | ?? | ?? ? | ?? |
|---|---|---|---|---|---|
| Hebei Chuanghai Biotechnology Co., Ltd | +8615531157085 |
abby@chuanghaibio.com | China | 8808 | 58 |
| Hebei Kingfiner Technology Development Co.Ltd | +86-15532196582 +86-15373005021 |
lisa@kingfinertech.com | China | 3005 | 58 |
| Xiamen AmoyChem Co., Ltd | +86-86-5926051114 +8615060885618 |
sales@amoychem.com | China | 6383 | 58 |
| BOC Sciences | +1-631-485-4226 |
inquiry@bocsci.com | United States | 19552 | 58 |
| SIMAGCHEM CORP | +86-13806087780 |
sale@simagchem.com | China | 17357 | 58 |
| Shaanxi Dideu Medichem Co. Ltd | +86-029-89586680 +86-18192503167 |
1026@dideu.com | China | 7859 | 58 |
| Henan Alfa Chemical Co., Ltd | +8615838112936 |
alfa10@alfachem.cn | China | 13194 | 58 |
| Alfa Chemistry | |
Info@alfa-chemistry.com | United States | 24072 | 58 |
| Hebei Fengjia New Material Co., Ltd | +86-0311-87836622 +86-18712993135 |
sales01@tairunfaz.com | China | 8051 | 58 |
| PT CHEM GROUP LIMITED | +86-85511178; +86-85511178; |
peter68@ptchemgroup.com | China | 35425 | 58 |
?? ?? ??:
???(II) ????????? ?????? ????? ??(2,2,6,6-?????-3,5-???????) ??????? ?2? ??????? ?? ???? ????????? ?? ?????????
Tris(2,4-pentanedionato)chroMiuM(III)
1,1,3,3-TETRAMETHYLBUTYL ISOCYANIDE
TERT-BUTYL ISOCYANIDE
Benzyl isocyanide
Tosylmethyl isocyanide
Ethyl isocyanoacetate
TRIS(2,2,6,6-TETRAMETHYL-3,5-HEPTANEDIONATO)EUROPIUM(III)
DICHLORO(ETHYLENEDIAMINE)PLATINUM(II)
PHENYLSELENOL
METHYL ISOCYANOACETATE
SALCOMINE
N-BUTYLISOCYANIDE