Glycine

Glycine(mwachidule Gly), yomwe imadziwikanso kuti acetic acid, ndi amino acid yosafunikira, njira yake ya mankhwala ndi C2H5NO2. Glycine ndi amino acid ya glutathione yochepetsera antioxidant, yomwe nthawi zambiri imawonjezeredwa ndi magwero akunja pamene thupi lili pansi pa kupsinjika kwakukulu, ndipo nthawi zina imatchedwa semi-essential amino acid. Glycine ndi imodzi mwa amino acid zosavuta kwambiri.

Kapangidwe ka mankhwala:

Kliniki yoyera ya monoclinic kapena hexagonal crystal, kapena ufa woyera wa crystalline. Wopanda fungo, wokhala ndi kukoma kokoma kwapadera. Wosungunuka mosavuta m'madzi, wosungunuka m'madzi: 25g/100ml pa 25℃; Pa 50℃, 39.1g/10Chemicalbook0ml; 54.4g/100ml pa 75℃; Pa 100℃, ndi 67.2g/100ml. Wosasunthika kwambiri mu ethanol, pafupifupi 0.06g wosungunuka mu 100g anhydrous ethanol. Wosasunthika kwambiri mu acetone ndi ether.

Njira yopangira:

Njira ya Strecker ndi njira ya chloro-acetic acid ammonification ndiyo njira zazikulu zokonzekera.

Njira ya Strecker:formaldehyde, sodium cyanide, ammonium chloride reaction pamodzi, kenako onjezani glacial acetic acid, kutsanulira kwa methylene aminoacetonitrile; Amino acetonitrile sulfate idapezeka powonjezera methylene acetonitrile ku ethanol pamaso pa sulfuric acid. Sulfate imasungunuka ndi barium hydroxide kuti ipeze glycine barium salt; Kenako sulfuric acid imawonjezedwa kuti ipangitse barium, kuisefa, kuyika kwambiri mu filtrate, ndipo ikazizira imapanga makhiristo a glycine. Kuyesera [NaCN] – > [NH4Cl] CH2 = N – CH2CNCH2 = N – CH2CN [- H2SO4] – > [C2H5OH] H2NCH2CN, H1SO4H2NCH2CN, – H2SO4 [BChemicalbooka (OH) 2] – (NH2CH2COO) 2 ba (NH2CH2COO) 2 ba [- H2SO4] – > H2NCH2COOH

Njira yopangira chloro-acetic acid ammoniation:Madzi a ammonia ndi ammonium bicarbonate osakaniza kutentha kufika pa 55℃, kuwonjezera chloro-acetic acid aqueous solution, reaction kwa maola awiri, kenako kutentha kufika pa 80℃ kuchotsa ammonia yotsala, kuchotsa mtundu ndi activated carbon, kusefa. Yankho lochotsa mtundu linawonjezedwa ndi 95% ethanol kuti glycine ipangike crystallize, yosefedwa, kutsukidwa ndi ethanol ndikuumitsidwa kuti chinthu chosaphikidwa chipezeke. Sungunulani m'madzi otentha ndikubwezeretsanso ndi ethanol kuti mupeze glycine. H2NCH2COOH ClCH2COOH [NH4HCO3] – > [NH4OH]

Kuphatikiza apo, glycine imachotsedwanso kuchokera ku silika hydrolyzate ndikuyiyika ndi gelatin ngati zopangira.

Ntchito:

Munda wa chakudya

1, imagwiritsidwa ntchito ngati ma reagents a zamankhwala, ingagwiritsidwenso ntchito mu mankhwala, chakudya ndi zowonjezera zakudya, feteleza wa nayitrogeni amagwiritsidwa ntchito ngati wothandizira wopanda poizoni wochotsa mpweya m'thupi;

2, imagwiritsidwa ntchito ngati chowonjezera pazakudya, makamaka popangira zokometsera ndi zina;

3, ili ndi mphamvu yoletsa kuberekana kwa subtilis ndi Escherichia coli, kotero ingagwiritsidwe ntchito ngati chosungira zinthu za surimi, batala wa mtedza, ndi zina zotero, kuwonjezera 1% ~ 2%;

4, ili ndi mphamvu yoletsa kukalamba (pogwiritsa ntchito mgwirizano wake wachitsulo), ikawonjezeredwa ku kirimu, tchizi, margarine imatha kukulitsa moyo wosungira wa nthawi 3 ~ 4;

5. Kuti mafuta anyama azikhazikika mu zinthu zophikidwa, shuga 2.5% ndi glycine 0.5% zitha kuwonjezeredwa;

6. Onjezani 0.1% ~ 0.5% ku ufa wa tirigu kuti muphike Zakudyazi mwachangu, zomwe zingathandize kuwonjezera zokometsera nthawi imodzi;

7, kukoma kwa mchere ndi viniga kumatha kukhala gawo la buffer, kuchuluka kwa zinthu zamchere zomwe zawonjezeredwa 0.3% ~ 0.7%, zinthu za asidi 0.05% ~ 0.5%;

8, malinga ndi malamulo athu a GB2760-96, ingagwiritsidwe ntchito ngati zonunkhira.

Munda waulimi

1. Amagwiritsidwa ntchito makamaka ngati chowonjezera komanso chokopa kuti awonjezere ma amino acid mu chakudya cha nkhuku, ziweto, makamaka ziweto. Amagwiritsidwa ntchito ngati chowonjezera cha mapuloteni osungunuka, monga chothandizira mgwirizano wa mapuloteni osungunuka;

2, popanga mankhwala ophera tizilombo omwe amagwiritsidwa ntchito popanga mankhwala ophera tizilombo otchedwa pyrethroid insecticide glycine ethyl ester hydrochloride, amathanso kupangidwa ndi fungicide isobiurea ndi herbicide solid glyphosate.

Munda wa mafakitale

1, yogwiritsidwa ntchito ngati chowonjezera cha yankho lopaka;

2, yogwiritsidwa ntchito mumakampani opanga mankhwala, mayeso a biochemical ndi kapangidwe ka organic;

3, amagwiritsidwa ntchito ngati zipangizo zopangira cephalosporin, sulfoxamycin yapakatikati, imidazolacetic acid synthesis yapakatikati, ndi zina zotero;

4, yomwe imagwiritsidwa ntchito ngati zinthu zodzikongoletsera.

Ma CD a Mankhwala: 25kg / thumba

Malo osungiramo ayenera kukhala ozizira, ouma komanso opatsa mpweya wabwino.