L-Phenylalanine CAS 63-91-2 rau Qeb Khoom Noj (FCC / USP)
Pab:
L-Phenylalanine (Cov Ntawv Tshaj Tawm Phe) yog qhov tseem ceeb amino acid thiab yog tib daim ntawv ntawm phenylalanine pom hauv cov protein. Nws yog ib qho ntawm 18 hom amino acids, thiab ib ntawm yim qhov tseem ceeb amino acids ntawm tib neeg lub cev.
Raws li kev noj haus ntxiv ， L-phenylalanine tuaj yeem pom raws li benzyl pawg hloov chaw rau cov pab pawg methyl ntawm alanine, lossis phenyl pab pawg sawv cev ntawm lub dav hlau hydrogen ntawm alanine. Feem ntau hauv lub cev los ntawm phenylalanine hydroxylase catalysis oxidation rau hauv tyrosine, thiab hluavtaws nrog tyrosine tseem ceeb neurotransmitters thiab cov tshuaj hormones, kom koom nrog lub cev metabolism ntawm cov piam thaj thiab rog metabolism.
L-phenylalanine yog ib qho bioactive aromatic amino acid. Nws yog qhov tsim nyog amino acid uas tsis tuaj yeem ua rau tib neeg thiab tsiaj txhu tsim los. Nws yog qhov tsim nyog rau ib tus neeg noj 2.2g L-phenylalanine txhua hnub. Ua ib ntawm yim tsim nyog amino acids rau tib neeg lub cev, nws tau siv dav hauv kev lag luam kws tshuaj thiab khoom noj khoom haus ntxiv. Nws yog ib qho tseem ceeb ntawm kev txhaj tshuaj amino acid. Hauv kev lag luam ua khoom noj, L-phenylalanine tuaj yeem raug ntxiv rau hauv cov khoom noj bakery. Thiab cov khoom noj khoom haus ntawm phenylalanine tuaj yeem ua kom zoo dua thiab los ntawm amido-carboxylation nrog glucide.
L-phenylalanine tuaj yeem txhim kho cov zaub mov muaj ntxhiab thiab khaws qhov sib npaug ntawm cov amino acids uas tsim nyog. Hauv kev lag luam kws tshuaj, L-phenylalanine yog siv los ua nruab nrab ntawm qee cov tshuaj tua kab mob amino tshuaj pleev ib ce xws li formylmerphalanum thiab lwm yam Nws tseem siv los tsim adrenalin, thyroxin thiab melanin. Lwm daim ntawv thov tseem ceeb yog coj los ua aspartame nrog L-aspartic acid.
L - phenylalanine yog cov khoom siv tseem ceeb ntawm cov zaub mov tseem ceeb ntxiv - sweetener Aspartame (Aspartame). Raws li ib qho ntawm cov amino acids tseem ceeb hauv lub cev, L-phenylalanine tsuas yog siv rau cov amino acid hloov pauv thiab cov tshuaj amino acid hauv kev lag luam kws tshuaj.
Cov Lus Qhia Tshwj Xeeb
|
Yam khoom |
USP40 |
FCCVI |
|
Kev piav qhia |
Muaju dawb los yog hmoov dawb |
Muaju dawb los yog hmoov dawb |
|
Kev Qhia Txog Tus Kheej |
Ntxuas Sib |
Infrared Tsis Raug |
|
Ntsuas |
98.5% ~ 101.5% |
98.5% ~ 101.5% |
|
pH |
5.5 ~ 7.0 |
5.4 ~ 6.0 |
|
Poob rau kom qhuav |
≤0.3% |
≤0.2% |
|
Residue ntawm kev tiv thaiv |
≤0.4% |
≤0.1% |
|
Chloride |
≤0.05% |
≤0.02% |
|
Hnyav Hlau |
15ppm |
15ppm |
|
Lead |
- |
5 ppm |
|
Hlau |
30ppm |
- |
|
Tshav ntuj |
≤0.03% |
- |
|
Arsenic |
- |
2ppm |
|
Lwm cov amino acids |
Cov Qauv |
- |
|
Kev sib hloov tshwj xeeb |
-32.7 ° ~ -34.7 ° |
-33.2 ° ~ -35.2 ° |
