L-cysteine Mimọ | 52-90-4
Apejuwe ọja:
Cysteine jẹ kirisita funfun tabi lulú kirisita, tiotuka ninu omi, õrùn diẹ, insoluble ni ethanol, insoluble ni Organic solvents bi ether. Yiyọ ojuami 240 ℃, monoclinic eto. Cysteine jẹ ọkan ninu awọn amino acids ti o ni imi-ọjọ, eyiti o jẹ amino acid ti ko ṣe pataki.
Ninu ara, atom imi imi ti methionine ti rọpo pẹlu atom oxygen hydroxyl ti serine, ati pe o ti ṣepọ nipasẹ cystathionine.
Lati cysteine , glutathione le ṣe ipilẹṣẹ. glycerol. Cysteine jẹ iduroṣinṣin acid, ṣugbọn o ni irọrun oxidized si cystine ni didoju ati awọn solusan ipilẹ.
Ipa ti ipilẹ L-cysteine :
O ni isokan ninu ara, ati bẹbẹ lọ.
Idilọwọ ni imunadoko ati ṣe itọju ipalara itankalẹ.
O ṣe itọju iṣẹ ṣiṣe ti sulfhydrylase pataki ni iṣelọpọ keratin ti awọn ọlọjẹ ara, ati awọn afikun awọn ẹgbẹ imi-ọjọ lati ṣetọju iṣelọpọ deede ti awọ ara ati ṣe ilana melanin ti o wa labẹ iṣelọpọ nipasẹ awọn sẹẹli pigmenti ni ipele ti o kere julọ ti epidermis. O ti wa ni a gan bojumu adayeba funfun ikunra.
Nigbakugba ti iredodo tabi aleji ba waye, sulfydrylase gẹgẹbi cholphosphatase ti dinku, ati afikun L-cysteine le ṣe itọju iṣẹ ṣiṣe ti sulfydrylase ati ki o mu awọn aami aisan ara ti iredodo ati aleji.
O ni ipa ti itusilẹ keratin, nitorinaa o tun munadoko fun awọn arun awọ-ara pẹlu keratin hypertrophy.
O ni o ni awọn iṣẹ ti idilọwọ ti ibi ti ogbo.
Awọn itọkasi imọ-ẹrọ ti ipilẹ L-cysteine :
| Ohun Onínọmbà | Sipesifikesonu |
| Ifarahan | Awọn kirisita funfun lulú tabi lulú kirisita |
| Idanimọ | Iwoye gbigba infurarẹẹdi |
| Yiyi pato [a] D20° | +8.3°~+9.5° |
| Ipinle ti ojutu | ≥95.0% |
| Ammonium (NH4) | ≤0.02% |
| Kloride (Cl) | ≤0.1% |
| Sulfate (SO4) | ≤0.030% |
| Irin (Fe) | ≤10ppm |
| Awọn irin ti o wuwo (Pb) | ≤10ppm |
| Arsenic | ≤1ppm |
| Pipadanu lori gbigbe | ≤0.5% |
| Iyoku lori ina ≤0.1% | |
| Ayẹwo | 98.0 ~ 101.0% |
| PH | 4.5 ~ 5.5 |
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