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L-Theanine CAS Nr .: 34271-54-0

Chemical Property:

Molecular Formula C7H14N2O3
Molar Mass 174.2 ib
Qhov ntom 1.171 ± 0.06 g / cm3 (Tshaj tawm)
Melting Point 200 ° C
Boling Point 430.2 ± 40.0 ° C (Kev kwv yees)
Flash Point 214 ° C
Solubility Dej (tseem ceeb)
Vapor Siab 1.32E-08mmHg ntawm 25 ° C
Qhov tshwm sim Khoom
Xim Dawb rau Off-White
pKa 2.24 ± 0.10 (Tshaj tawm)
Kev cia khoom 2-8 ° C
Refractive Index 1.492 ib
Physical thiab Chemical Properties Cov yam ntxwv theanine yog ib qho tshwj xeeb dawb amino acid hauv tshuaj yej, theanine yog glutamic acid gamma-ethyl amide, qab zib. Cov ntsiab lus ntawm theanine txawv nrog ntau yam thiab txoj haujlwm ntawm tshuaj yej. Theanine yog tam sim no nyob rau hauv qhuav tshuaj yej ntawm 1-2% los ntawm qhov hnyav.theanine nyob rau hauv cov qauv tshuaj thiab lub hlwb active tshuaj glutamine, glutamic acid zoo ib yam, yog lub ntsiab tseem ceeb ntawm kev loj hlob ntawm cov tshuaj yej. Cov ntsiab lus Theanine yog li 1 ~ 2% ntawm cov tshuaj yej tshiab, thiab nws cov ntsiab lus txo nrog cov txheej txheem fermentation.
Siv Siv raws li ib tug flavoring neeg sawv cev

Product Detail

Khoom cim npe

Hazard Cov Cim Xi-xaj
Risk Codes 43 - Tej zaum yuav ua rau mob ntawm daim tawv nqaij
Kev nyab xeeb piav qhia S28 - Tom qab sib cuag nrog daim tawv nqaij, ntxuav tam sim nrog xab npum-suds ntau.
S36/37 - Hnav cov khaub ncaws tiv thaiv thiab hnab looj tes tsim nyog.

 

Taw qhia

DL-Theanine yog ib txwm tshwm sim amino acid muab rho tawm los ntawm tshuaj yej nplooj. Nws yog tsim los ntawm catalytic kev txiav txim ntawm cov kua qaub los yog enzyme polyphenols thiab muaj natural optical isomers (L- thiab D-isomers). Cov txiaj ntsig ntawm DL-Theanine:

 

Optical isomers: DL-Theanine muaj L- thiab D-isomers thiab yog achiral sib tov.

 

Solubility: DL-Theanine dissolves zoo nyob rau hauv dej thiab kuj soluble nyob rau hauv ethanol, tab sis muaj tsawg solubility.

 

Kev ruaj ntseg: DL-Theanine kuj ruaj khov nyob rau hauv nruab nrab lossis tsis muaj zog acidic, tab sis yooj yim degraded nyob rau hauv alkaline tej yam kev mob.

 

Antioxidant: DL-Theanine tuaj yeem cuam tshuam cov dawb radicals, muaj zog antioxidant kev ua haujlwm, thiab muaj txiaj ntsig zoo ntawm kev ncua kev laus thiab tiv thaiv oxidative kev nyuaj siab.

 

Nutraceuticals: DL-Theanine tuaj yeem siv los ua zaub mov ntxiv los pab txhim kho lub cev tsis muaj zog thiab txhawb kev noj qab haus huv.

 

Txoj kev npaj ntawm DL-theanine feem ntau suav nrog cov kua qaub thiab txoj kev enzymatic. Txoj kev acid yog decompose tshuaj yej polyphenols rau hauv theotic acid thiab amino acids los ntawm reacting tshuaj yej nplooj nrog acids, thiab ces tau DL-theanine los ntawm ib tug series ntawm extraction, crystallization thiab lwm yam kauj ruam. Txoj kev enzymatic yog siv cov enzymes tshwj xeeb los catalyze cov tshuaj tiv thaiv kom decompose tshuaj yej polyphenols rau hauv cov amino acids, thiab tom qab ntawd rho tawm thiab ntxuav kom tau DL-theanine.

Rau cov neeg muaj kev fab tshuaj lossis kab mob tshwj xeeb, nws yuav tsum tau siv raws li kev qhia ntawm kws kho mob lossis kws tshaj lij.


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