L-cysteín
  • L-cysteínL-cysteín

L-cysteín

L-cysteín sa používa hlavne v medicíne, kozmetike, biochemickom výskume; Používa sa v chlebových materiáloch na podporu tvorby lepku a na podporu fermentácie, plesní a prevenciu starnutia. Používa sa v prírodných šťavách, aby sa zabránilo oxidácii vitamínu C a zabránilo sa zhnednutiu šťavy. Produkt má detoxikačný účinok, môže sa použiť na otravu akrylonitrilom, aromatickú acidózu.

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Popis produktu

L-cysteín


L-cysteín CAS:52-90-4


L-cysteín Chemical Properties

MF: C3H7NO2S

MW: 121,16

Teplota topenia: 220 ° C (dec.) (Lit.)

Alfa: 8,75 ° (c = 12, 2 n hcl)

Teplota varu: 293,9 ± 35,0 ° C (predpokladané)

Hustota: 1,197 (odhad)

Index lomu: 8,8 ° (c = 8, 1 mol / l hcl)

Rozpustnosť H2O: 25 mg / ml

Pka: 1,92 (o 25 ° C)

PH: 4,5 - 5,5 (100 g / l, H2O, 20 ° C)

optická aktivita: Optická rotácia: + 8 ° až + 9 ° (c = 5, 1 N HCI, 20 ° C).

Rozpustnosť vo vode: 280 g / L (25 ° C)


L-cysteín CAS:52-90-4 Specification:

Vzhľad

Biele kryštály alebo kryštalický prášok

Špecifická rotácia [Î ±] D 20

+ 8,3 ° - + 9,5 °

Prepustnosť

95,0%

Chlorid (Cl)

0,04%

Amoniak (NH4)

0,01%

Síran (SO4)

0,01%

Železo (Fe)

â ‰ ¤10 ppm

Ťažké kovy (pb)

â ‰ ¤10 ppm

Arzén (As2o3)

â ‰ ¤1 ppm

Ostatné aminokyseliny

Chromatograficky: Nedá sa zistiť

Strata sušením

â ‰ 0,5,5%

Zvyšok po zapálení

0,1%

Skúška

98,0 - 101,0%


L-cysteín CAS:52-90-4 Introduction:

L-cysteín is a common amino acid in the body. It is one of the sulfur-containingα-amino acids. It is purple when exposed to nitroprusside (developed due to SH). It is present in many proteins and glutathione, and can form insoluble with Ag +, Hg +, Cu + and other metal ions Mercaptide. That is, R-S-M′, R-S-M″-S-R (M′, M″are each monovalent and divalent metals). Molecular formula C3H7NO2S, molecular weight 121.16. Colorless crystals. Soluble in water, ethanol, acetic acid and ammonia [1]

L-cysteín has many uses in food processing. It is mainly used in baked products as an essential ingredient for dough improvers. L-cysteine is a reducing agent, it can promote the formation of gluten, reduce the time required for mixing and the energy required for medicinal purposes. Disulfide bonds weaken the structure of the protein, so the protein stretches out


L-cysteín CAS:52-90-4 Function:

1.L-cysteín  has effective detoxification.

2.L-cysteín can effectively prevent and treat radiation injury.

3.L-cysteín can remove the skin melanin itself, change the nature of the skin itself.

4.L-cysteín can improve the symptoms of inflammation and skin allergies.

5.L-cysteín on horny skin disease is also effective hypertrophy.

6.L-cysteín has a function to prevent biological aging.

7.L-cysteín  is a kind of natural amino acid, has many uses in food processing, it is mainly used for baking products, as a necessary component of dough improver

8.L-cysteín is a kind of reductant, it can promote the formation of gluten, reduce the time needed for mixing and the energy required for medicinal.


L-cysteín CAS:52-90-4 Application:

L-cysteín is widely used in fields of medicine, food processing, biological study, materials of chemical industry and so on. It’s used as raw materials for manufacturing N-Acetyl-L Cysteine, S-Carboxymethyl-L Cysteine, and L Cysteine base, etc. Used in the cure of liver disease, antioxidant and antidote are a promotor for bread fermentation. It promotes the form of glutelin and prevents from getting aging. Also used in cosmetic.

1.L-cysteín has an effective detoxification.

2. L-cysteín can effectively prevent and treat radiation injury.

3. L-cysteín can remove the skin melanin itself, change the nature of the skin itself, the skin becomes natural whitening. It is a kind of ideal natural whitening cosmetics.

4.L-cysteín can improve the symptoms of inflammation and skin allergies.

5.L-cysteín on horny skin disease is also effective hypertrophy.

6. L-cysteín has a function to prevent biological aging.

7. Cysteín je druh prírodnej aminokyseliny, má mnohostranné použitie v potravinárskom priemysle a používa sa hlavne na pečenie ako nevyhnutná súčasť zlepšovača cesta.

8. Cysteín je druh redukčného činidla, môže podporovať tvorbu lepku, znižovať čas potrebný na zmiešanie a energiu potrebnú pre liečenie, cysteín zmenou bielkovinových molekúl a bielkovinových molekúl medzi vnútornou disulfidovou väzbou, oslabiť štruktúru proteín, tento proteín je natiahnutý.




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