L-Tyrosine | 60-18-4
Products Description
Tyrosine (yakapfupikiswa seTyr kana Y) kana 4-hydroxyphenylalanine, imwe ye22 amino acids inoshandiswa nemasero kugadzira mapuroteni. Iyo codonsare UAC uye UAU. Iyo isiri-yakakosha amino acid ine polar side boka. Izwi rekuti "tyrosine" rinobva muchiGiriki tyros, zvinoreva chizi, sezvarakatanga kuwanikwa muna 1846 nenyanzvi yemakemikari wekuGermany Justus von Liebig muproteincasein kubva kuchizi. Inonzi tyrosyl kana ichinzi a functional groupor side chain.yrosine inotangira kune neurotransmitters uye inowedzera plasmaneurotransmitter mazinga (kunyanya DOPAM uye norepinephrine) asi haina zvishoma kana paine mhedzisiro pamafungiro. Mhedzisiro yemafungiro inoonekwa zvakanyanya muvanhu vari pasi pemamiriro ezvinhu anoshungurudza.
Kunze kwekuve proteinogenic aminoacid, tyrosine ine basa rakakosha nekuda kweiyo phenol mashandiro. Itoccurs mumapuroteni ayo ari chikamu chechiratidzo chekufambisa maitiro. Inoshanda semugamuchiri wemapoka ephosphate anotamiswa nenzira yeproteinkinases (inonzi receptor tyrosine kinases). Phosphorylation yehydroxylgroup inoshandura basa reprotein yakanangwa.
Imwe tyrosine yakasara inoitawo basa rakakosha mu photosynthesis. Mune chloroplasts (photosystem II), inoshanda seanopa anelectron mukuderedza oxidized chlorophyll. Mukuita uku, inopinda deprotonation yeiyo phenolic OH-boka. Iyi radical inozodzikiswa mufotosystem II nemasumbu mana epakati manganese.
Tsvakurudzo dzinoverengeka dzakawana tyrosine inobatsira panguva yekushushikana, kutonhora, kuneta, kurasikirwa kwemudiwa senge murufu kana kurambana, kushanda kwenguva refu uye kushaikwa kwekurara, nekuderedza kushushikana kwehomoni mazinga, kuderedzwa kwekushushikana-induced uremu kurasikirwa kunoonekwa miedzo yemhuka, kuvandudzwa kwekuziva uye kushanda kwemuviri kunoonekwa mumagariro evanhu; zvisinei, nekuti tyrosine hydroxylase ndiyo chiyero-inomisa enzyme, mhedzisiro haina kukosha pane iyo yeL-DOPA.
Tyrosine hairatidzike seine chinhu chakakosha pamanzwiro, kufunga kana kuita kwemuviri mumamiriro akajairwa. Chiyero chezuva nezuva chekuongorora kwekiriniki chinotsigirwa mumabhuku chinenge 100 mg/kg kumunhu mukuru, inokwana kusvika 6.8 gramu pa150 lbs. Iyo yakajairika dosage inosvika 500-1500 mg pazuva (dose inokurudzirwa nevazhinji vanogadzira; kazhinji inoenzana ne1-3 capsules ye pure tyrosine). Hazvikurudzirwi kudarika 12000 mg (12 g) pazuva.
Tsanangudzo
| Items | Standard | Miedzo mhinduro |
| Chaiyo Kutenderera[a]ᴅ²⁰ | -9.8°kusvika-11.2° | -10.4° |
| Chloride (CI) | Kwete kupfuura 0.05% | ＜0.05% |
| Sulfate(SO₄) | Kwete kupfuura 0.04% | ＜0.04% |
| Iron(Fe） | Kwete kupfuura 0.003% | ＜0.003% |
| Heavy metals | Kwete kupfuura 0.00015% | ＜0.00015% |
| Kurasikirwa pakuomeswa | Kwete kupfuura 0.3% | ＜0.3% |
| Residue paIgnition | Kwete kupfuura 0.4% | ＜0.4% |
| Assay | 98.5% -101.5% | 99.3% |
| Mhedziso | Inoenderana neUSP32 standard | |
