Cov tshuaj tiv thaiv xanthoproteic yog ib txoj hauv kev uas tuaj yeem siv los kuaj pom muaj cov protein soluble hauv cov tshuaj, siv cov concentrated nitric acid. Qhov kev sim ua rau qhov tshwm sim zoo hauv cov amino acids nqa cov tshuaj tsw qab, tshwj xeeb tshaj yog muaj tyrosine.
Yuav ua li cas yog lub luag haujlwm rau cov tshuaj tiv thaiv xim ntawm cov protein nrog Xanthoproteic test?
Xanthoproteic kuaj yog tshwj xeeb rau cov protein uas muaj cov amino acids uas muaj ntxhiab. Lub nplhaib benzene nyob rau hauv cov amino acids yog nitrated los ntawm cua sov nrog nitric acid thiab tsim daj nitro-compoundsuas tig mus rau txiv kab ntxwv xim nrog alkali.
Qhov txiaj ntsig zoo rau kev kuaj ninhydrin yog dab tsi?
Tus cim rau qhov kev kuaj ninhydrin zoo yog xim xiav sib sib zog nqus tau hauv cov tshuaj. Cov tshuaj tiv thaiv no qhia pom muaj cov amino acids, lwm yam amines thiab ammonia hauv cov qauv kuaj.
Cov tshuaj tiv thaiv xim ntawm cov protein yog dab tsi?
Proteins yog tsim los ntawm cov amino acid residue koom nrog peptide bonds. Vim muaj cov qauv peptide thiab muaj qhov sib txawv ntawm cov amino acid residues, proteins hnov mob nrog ntau hom reagents los ua cov khoom xim Cov kev ntsuam xyuas no paub tias yog xim cov tshuaj tiv thaiv protein.
Xim twg yog tsim los ntawm Millon qhov kev sim rau tyrosine?
Ib xim liab-xim av los yog precipitate qhia tias muaj tyrosine residue uas tshwm sim nyob rau hauv yuav luag tag nrho cov proteins. Qhov kev sim no yog tsim los ntawm Fab Kis tus kws chemist Auguste Nicolas Eugene Millon (1812–1867).
