Kev piav qhia
Ascorbyl glucoside yog cov khoom siv dav siv hauv cov tshuaj pleev ib ce, zoo li cov hmoov dawb crystalline hmoov. Ascorbyl glucoside tsis ruaj khov thiab yooj yim oxidized, yog li nws yuav tsum tau khaws cia deb ntawm lub teeb. Nws muaj xim dawb thiab tiv thaiv -kev laus.
Txheej txheem ntau lawm
1. Nyob rau hauv cov tshuaj tiv thaiv ntawm qhov kev sim, ntxiv rau lub hom phiaj cov khoom VC qabzib glycoside, kuj muaj ib co unreacted vitamin C molecules. Siv nanofiltration los lim tawm qhov me me -molecule VC yields ib nanofiltration concentrate, zoo ib yam li lim tawm me me ntawm cov kua txiv hmab txiv ntoo.
2. Siv cov khoom sib cais tsis tu ncua kom cais cov piam thaj los ntawm cov tshuaj tiv thaiv.
3. Cov tshuaj tawm ntawm cov khoom sib cais yog thawj zaug kho rau pH siv cation txauv resin los txhim kho nws cov mob. Tom qab ntawd nws yog concentrated ntawm nanofiltration kom tshem tawm cov ntsev inorganic los ntawm cov tshuaj tiv thaiv, yielding ib tug concentrated tov ntawm VC glucoside, zoo li tshem tawm ntau ntsev thiab impurities los ntawm kua txiv.
4. Cov ntshiab VC kua nplaum glycoside yog raug rau lub tshuab nqus tsev distillation kom mloog zoo thiab ua kom nws cov concentration. Tom qab ntawd nws yog crystallized kom tau VC qabzib glycoside crystals.
Specification
|
Khoom npe |
Ascorbyl glucoside |
|
Melting point |
158-163 degree |
|
Boiling point |
785.6 ± 60.0℃(Predicted) |
|
Qhov ntom |
1.83 ± 0.1 g / cm3 (Kev kwv yees) |
|
Vapor siab |
0Pa ntawm 25 degree |
|
Cia tej yam kev mob |
Khaws nyob rau hauv qhov chaw tsaus, kaw hauv qhuav, Chav Kub |
|
Solubility |
Soluble hauv DMSO (me ntsis), methanol (me ntsis) |
|
Acidity coefficient (pKa) |
3.38 ± 0.10 (Kev kwv yees) |
|
Qhov tshwm sim |
Hmoov |
|
Xim |
Dawb |
|
Qhov siab tshaj plaws wavelength (λmax) |
260nm (H2O) (lit.) |
|
Dej solubility |
Soluble hauv dej. (879 g / L) ntawm 25 degree. |
|
LogP |
-2 ntawm 20 degree |
|
Ntog nro |
71mN / m ntawm 1g / L thiab 20 degree |
Txhim kho cov xim ntawm daim tawv nqaij cuam tshuam nrog kev tsim cov melanin. Thaum ascorbate glucoside hloov mus rau hauv vitamin C thiab permeates ntawm daim tawv nqaij, nws txo qis melanin tsim los ntawm suppressing tyrosinase kev ua. Qhov kev tawm tsam no ua rau txo qis hauv dopamine quinones, uas yog ib qho tseem ceeb hauv kev tsim cov melanin synthesis. Tsis tas li ntawd, nws hloov dopaquinone rau hauv levodopa, pab ua kom melanin uas twb muaj lawm thiab, yog li ntawd, txo cov tawv nqaij pigmentation.
Ascorbate glucoside, ib zaug hloov mus rau vitamin C, muaj kev tiv thaiv UV-induced cellular puas. Nws txo qis cov dawb radicals uas tsim los ntawm UV hluav taws xob ntawm daim tawv nqaij, yog li alleviating tawv nqaij puas thiab ua hauj lwm raws li ib tug tiv thaiv nyob rau hauv cov khoom tshuaj pleev thaiv hnub.
Cov khoom kub
|
CAS Nr |
Khoom npe |
|
Hydroxypinacolone Retinoate |
893412 -73-2 |
|
Ectoine |
96702-03-3 |
|
Ascorbyl glucoside |
129499-78-1 |
|
Ecdysone |
3604-87-3 |
|
Enoxolone |
471-53-4 |
OEM ODM Kev Pabcuam-Ib -Stop Shopping Partner-Sinov Biotechnology
Yuav tiv tauj peb li cas
1.Xa cov khoom yuav khoom, specifications, kom muaj nuj nqis, chaw nyob thiab lwm yam ntaub ntawv rau peb los ntawm e-mail.
2.Tus thawj tswj khoom yuav tiv tauj koj thawj zaug.
3.Tom qab txhua qhov kev sib tham, kos npe rau daim ntawv cog lus yuav khoom.
4.Kev xa khoom tom qab them nyiaj rau Tshuag, thiab pib ntau lawm tom qab them nyiaj rau cov khoom tshwj xeeb loj.
Cim npe nrov: Tuam Tshoj ascorbyl glucoside hmoov manufacturers, hoobkas
