Xi'an Naturetech Co., Ltd
call us on: +86-29-63652300
Xov xwm
Tsev > Xov xwm > Ntsiab lus

Amino Acid Lub Cev Lub Cev Thiab Tshuaj Khomob

Xi'an Naturetech Co., Ltd | Updated: Sep 05, 2017

Amino acids yog cov cheebtsam ntawm cov hoob kawm ntawm cov organic compounds nrog cov amino thiab carboxyl pawg. Nyob rau hauv ib sab broad, ib qho organic compound uas muaj alkaline amino acid uas muaj ib pawg carboxyl acid, tab sis cov amino acid, yog cov qauv tsev uas ua rau cov protein.

Amino acids yog cov tshuaj uas tsim cov protein ntau rau cov khoom noj khoom haus. Organic compounds muaj alkaline amino acids thiab acidic carboxyl pawg. Cov amino pawg yog alpha-amino on alpha carbon. Cov amino acids uas ua cov proteins uas feem ntau yog alpha-amino acids.

Cov amino acids tuaj yeem ua cov haujlwm hauv qab no hauv lub cev los ntawm cov metabolism: Ua cov acids, hormones, tshuaj tiv thaiv, creatine, thiab lwm yam. Hloov cov carbohydrates thiab cov rog; Nws oxidizes carbon dioxide thiab dej thiab urea, ua zog.

Lub cev thiab tshuaj muaj zog

Amino acids li tsis muaj xim, ntau tshaj li 200 ℃, melting point tshaj qhov nruab nrab ntau tshaj ntawm qhov nruab nrab ntawm cov organic tebchaw. Alpha-amino acid muaj plaub yam sib txawv ntawm cov kua qaub, qab zib, iab thiab tshiab. Monosodium glutamate thiab glycine yog cov feem ntau siv flavorings. Cov kabmob kis kabmob no feem ntau tsis tsim nyob rau hauv dej, kua qaub kua thiab alkali daws, tsis yog soluble lossis soluble organic solvents xws li ethanol lossis ether. Amino acids nyob rau hauv cov dej solubility ntawm qhov txawv yog loj heev, xws li cov tsawg solubility tyrosine, 25 ℃, tyrosine yaj tsuas 0.045 g 100 g dej, tab sis nyob rau hauv cov phom kub kub tyrosine solubility loj dua. Lysine thiab speramate feem ntau tam sim no nyob rau hauv daim ntawv ntawm hydrochloric acid, vim hais tias lawv yog cov dej nyob hauv dej ntau heev thiab nyuaj rau crystallize vim yog lub deliquescence.

(1) xim thiab xim ntawm ntau hom amino acids yog ib qho yooj yim kom tsis muaj xim tsis muaj zog, thiab cov duab crystalline nws txawv nrog cov qauv ntawm cov amino acids. Piv txwv, l-monoglutamic acid yog tetragon, thiab D monoglutamic acid yog lub pob zeb diamonds zoo li.

(2) amino acid crystallization ntawm melting point high, melting point yog feem ntau 200 ~ 200 ℃, ntau cov amino acids nyob rau ntawm los yog ze rau ntawm qhov chaw chwv yuav raug rhuav tshem mus rau amine thiab CO2.

(3) feem ntau cov amino acids ntawm solubility yog soluble hauv dej. Lub solubility ntawm cov amino acids sib txawv hauv dej txawv, xws li lysine, arginine, thiab proline solubility. Lub solubility ntawm tyrosine, cysteine ​​thiab histidine yog heev me me. Txhua yam ntawm cov amino acids yog cov dej nyob hauv cov hauv paus muaj zog thiab muaj zog cov acids. Tab sis cov amino acids yog insoluble lossis me ntsis soluble hauv ethanol.

(4) cov amino acids thiab lawv cov dej caw muaj qee qhov saj, xws li qaub, qab zib, iab, thiab lwm yam. Qhov tsw ntawm hom yog hais txog hom amino acid thiab qauv peb sab. Feem ntau hais lus, d-hom amino acid muaj lub qab zib saj, thiab nws cov qab zib siv ntau dua qhov sib txig L 1 cov amino acid.

(5) lub cev nqus ntawm ultraviolet absorption ntawm ntau hom amino acids tsis muaj peev xwm nqus pom lub teeb. Tab sis tyrosine, tryptophan thiab phenylalanine muaj kev yees duab photoabsorption hauv cheeb tsam ultraviolet. Feem ntau cov proteins uas muaj cov amino acids no, tshwj tyrosine. Yog li ntawd, cov ntsiab lus ntawm cov protein yuav xam pom tau los ntawm uv haum yam ntxwv ntawm 280hm wavelength.

Ib qho tseem ceeb kho qhov muag ntawm cov amino acids yog qhov nqus ntawm lub teeb. 20 hom Pr - AA muaj nqus nqhis hauv qhov pom ntawm thaj chaw ultraviolet (<220 nm)="" muaj="" qhov="" nqus="" nqus="" ntawm="" qhov="" chaw="" ultraviolet="" (ze="" ultraviolet="" band)="" (220="" nm="" mus="" rau="" 300="" nm)="" tsuas="" yog="" 3="" lub="" peev="" xwm="" nqus="" ntawm="" aa,="" hom="" amino="" acids="" yog="" phenylalanine,="" tyrosine="" thiab="" tryptophan,="" vim="" hais="" tias="" lawv="" r="" lub="" hauv="" paus="" uas="" muaj="" benzene="" nplhaib="" conjugated="" ob="" leeg="" bond=""> Styrene acrylic AA siab tshaj plaws ntawm 259 nm, cheese AA ntawm 278 nm, xim AA ntawm 279 nm, proteins feem ntau muaj peb hom AA residues, yog li nws siab tshaj plaws nyob rau ntawm 280 nm wavelength ntawm lub teeb, yog li siv tau spectrophotometric txoj kev yog yooj yim rau kev txiav txim siab cov ntsiab lus ntawm cov protein. Lub hauv paus ntawm kev txiav txim siab spectrophotometric ntawm cov ntsiab lus ntawm protein yog lambert - npias txoj cai. Qhov absorbance ntawm protein kua ntawm 280nm yog proportional rau nws cov concentration.


Contact Us

ADD.: C1008 Xinyidai International, qib 7 Xixie Road, Xi'an suav 710065

TEL: 86-29-63652300

E-mail: info@agronaturetech.com

Web: www.agronaturetech.com

Copyright © Xi'an Naturetech Co., Ltd