Glycine

Glycine(i-Gly efinyeziweyo), eyaziwa ngokuba yi-acetic acid, i-amino acid engabalulekanga, i-chemical formula yayo yi-C2H5NO2.Glycine i-amino acid ye-endogenous antioxidant eyanciphisa i-glutathione, ehlala incediswa yimithombo yangaphandle xa umzimba uphantsi koxinzelelo olunzima. , kwaye ngamanye amaxesha ibizwa ngokuba yi-semi-esential amino acid.I-Glycine yenye yezona zilula ze-amino acids.

Iimpawu zemichiza:

I-monoclinic emhlophe okanye i-crystal ene-hexagonal, okanye i-crystalline powder emhlophe.Ayinavumba, enencasa ekhethekileyo emnandi.Inyibilika ngokulula emanzini, ukunyibilika emanzini: 25g/100ml ku-25℃;Kwi-50℃, 39.1g/10Chemicalbook0ml;54.4g/100ml ku-75℃;Kwi-100℃, yi-67.2g/100ml.I-insoluble kakhulu kwi-ethanol, malunga ne-0.06g echithwe kwi-100g ye-ethanol e-anhydrous.Phantse ayinyibiliki kwi-acetone kunye ne-ether.

Indlela yokuvelisa:

Indlela ye-Strecker kunye ne-chloro-acetic acid ammonification indlela yeendlela eziphambili zokulungiselela.

Indlela ye-Strecker:i-formaldehyde, i-sodium cyanide, i-ammonium chloride reaction kunye, emva koko yongeza i-glacial acetic acid, imvula ye-methylene aminoacetonitrile;I-amino acetonitrile sulfate yafunyanwa ngokufaka i-methylene acetonitrile kwi-ethanol phambi kwe-sulfuric acid.I-sulfate ichithwa yi-barium hydroxide ukufumana ityuwa ye-glycine barium;Emva koko i-asidi ye-sulfuric ifakwe kwi-precipitate barium, ihluze, igxininise i-filtrate, kwaye emva kokupholisa iyancipha i-crystals ye-glycine.Umfuniselo [NaCN] – > [NH4Cl] CH2 = N – CH2CNCH2 = N – CH2CN [- H2SO4] – > [C2H5OH] H2NCH2CN, H1SO4H2NCH2CN, – H2SO4 [BChemicalbooka (OH) 2] – (2CONH2CH2CH2CH2CH2CN) 2 ba [- H2SO4] – > H2NCH2COOH

Indlela ye-amoniation ye-Chloro-acetic:Amanzi e-ammonia kunye ne-ammonium bicarbonate exutywe ukufudumeza ukuya kwi-55 ℃, yongeza isisombululo esinamanzi se-chloro-acetic, i-reaction ye-2h, emva koko ifudumeza ukuya kwi-80℃ ukususa i-ammonia eshiyekileyo, i-decolorization nge-activated carbon, ukuhluzwa.Isisombululo se-decolorizing songezwa kunye ne-95% ye-ethanol ukwenza i-glycine ikhazimle, ihluzwe, ihlanjwe nge-ethanol kwaye yomiswe ukuze ifumane imveliso ekrwada.Yinyibilikise emanzini ashushu kwaye uphinde udibanise nge-ethanol ukuze ufumane i-glycine.H2NCH2COOH ClCH2COOH [NH4HCO3] – > [NH4OH]

Ukongeza, i-glycine iphinda ikhutshwe kwi-silk hydrolyzate kunye ne-hydrolyzed nge-gelatin njengento eluhlaza.

Isicelo:

Intsimi yokutya

I-1, esetyenziswa njenge-reagents ye-biochemical, ingasetyenziselwa amayeza, ukutya kunye nezongezo zokutya, imboni yesichumisi se-nitrogen esetyenziswa njenge-arhente ye-non-toxic decarbonizing;

2, esetyenziswa njengesongezelelo sesondlo, ikakhulu esetyenziselwa isinongo kunye neminye imiba;

I-3, inempembelelo ethile yokuthintela ekuveliseni i-subtilis kunye ne-Escherichia coli, ngoko ingasetyenziselwa njengento yokugcina iimveliso ze-surimi, ibhotela ye-peanut, njl., Yongeza i-1% ~ 2%;

I-4, ine-antioxidant effect (usebenzisa intsebenziswano yayo ye-metal chelate), eyongezwe kwi-cream, itshizi, i-margarine inokwandisa ubomi bokugcinwa kwe-3 ~ 4 amaxesha;

5. Ukuzinzisa i-lard kwimpahla ebhakiweyo, i-glucose 2.5% kunye ne-glycine 0.5% inokudibaniswa;

6. Yongeza i-0.1% ~ 0.5% kumgubo wengqolowa wokupheka ngokukhawuleza ii-noodle, ezinokudlala indima ye-seasoning ngexesha elinye;

I-7, incasa yetyuwa kunye neviniga inokudlala indima ye-buffer, inani leemveliso zetyuwa ezongezelelweyo 0.3% ~ 0.7%, iimveliso ze-asidi 0.05% ~ 0.5%;

8, ngokwemigaqo yethu ye-GB2760-96 ingasetyenziswa njengeziqholo.

Intsimi yezoLimo

1. Isetyenziswa ikakhulu njenge-additive kunye nomtsalane wokwandisa i-amino acids kwisondlo senkukhu, imfuyo, ngakumbi izilwanyana zasekhaya.Isetyenziswe njenge-hydrolyzed protein additive, njenge-synergistic agent ye-hydrolyzed protein;

2, ekuveliseni izibulali-zinambuzane ezisetyenziswa kwi-pyrethroid insecticide intermediate glycine ethyl ester hydrochloride, inokwenziwa kwakhona i-fungicide isobiurea kunye ne-herbicide solid glyphosate.

Indawo yoshishino

I-1, isetyenziswe njengesongezo sesisombululo sokucwenga;

I-2, isetyenziswe kumashishini amayeza, iimvavanyo ze-biochemical kunye ne-organic synthesis;

I-3, isetyenziswe njenge-cephalosporin izinto eziluhlaza, i-sulfoxamycin ephakathi, imidazolacetic acid synthesis intermediate, njl.;

4, esetyenziswa njengezinto zokuthambisa zokuthambisa.

Ukupakishwa kwemveliso: 25kg / ibhegi

Ukugcinwa kufuneka kube kwindawo epholileyo, yomile kwaye ivule umoya.