I-L-Valine
Isingeniso
I-L-valine iyi-amino acid ene-branched-chain, engenakukwazi ukwenziwa umzimba wesilwane uqobo. Kumele idliwe kusukela ekudleni kwansuku zonke ukuze ihlangabezane nezidingo zayo zokudla okunempilo, ngakho-ke iyi-amino acid ebalulekile. Ama-amino acid ayizingxenye eziyisisekelo zokwakheka kwamaprotheni, ezandulela amanye ama-amine adingekayo ukuze kusetshenziswe umzimba, futhi ayizinto ezibalulekile empilweni. Njengamanje, kune-amino acids ezingama-20 kuya ku-30 ezaziwayo, ezinye zazo ezingakhiwa emzimbeni womuntu futhi zibizwa ngokuthi ama-amino acid angabalulekile, kanti ezinye azikwazi ukwenziwa emzimbeni womuntu futhi kumele zifakwe ngaphandle, ezibizwa ngokuthi ama-amino acid abalulekile.
Izakhiwo zamakhemikhali
I-L-valine yaziwa nangokuthi i-2-amino-3-methylbutyric acid, enefomula yamakhemikhali i-C5H11NO2. Ikristalu emhlophe ye-monoclinic noma i-crystalline powder, ehlanzwa kabusha ngesisombululo samanzi se-ethanol, iyikristalu engenambala efana nepuleti noma enamabala. Ayinaphunga futhi inokunambitheka okubabayo okukhethekile. Indawo yokuncibilika icishe ibe yi-315℃ Chemicalbook. Incibilika kalula emanzini, isisombululo samanzi sine-acidic, kanti inani le-PH lesisombululo samanzi esingu-5% lingu-5.5~7.0. Cishe ayincibiliki ku-ethanol naku-ether. Izinzile ekushiseni, ekukhanyeni nasemoyeni. Kunzima ukuyihlukanisa ne-leucine.
SEBENZISA
I-L-Valine iyi-amino acid ebalulekile emzimbeni womuntu, esetshenziswa ocwaningweni lwe-biochemical, ekulungiseleleni i-tissue culture medium, kanye nemithi ye-amino acid. I-tonic yokudla okunempilo ingasetshenziswa njengengxenye eyinhloko yokufakwa kwe-amino acid kanye nokulungiswa kwe-asidi esekwe encwadini yamakhemikhali e-ammonia. I-L-valine ingenye yama-amino acid amathathu ane-branched-chain. Iyi-amino acid ebalulekile, engelapha ukwehluleka kwesibindi kanye nokungasebenzi kahle kwesistimu yezinzwa ephakathi.
