Propylene glycol yog cov xim tsis muaj xim, tsis muaj ntxhiab, kua nplaum me ntsis nrog kev ntxhib los mos me ntsis thicker dua dej. Nws yuav luag tsis muaj saj thiab yog ib qho khoom noj uas muaj tshuaj lom neeg. Zoo li ethanol, nws yog ib yam khoom muaj cawv.

Tsis tas li ntawd, raws li cov kuab tshuaj organic, nws tuaj yeem yaj qee cov organic solutes zoo dua li dej thiab tuaj yeem khaws cov dej noo zoo. Vim cov tshuaj tshwj xeeb no, nws yog dav siv hauv tshuaj pleev ib ce. Propylene glycol feem ntau tuaj yeem siv los ua moisturizer, softener, hnyav, thiab lwm yam, thiab muaj cov moisturizing zoo heev thiab siv cov teebmeem. Nws tuaj yeem siv tau rau hauv txhua yam tshuaj pleev ib ce, tshwj xeeb tshaj yog dej, tshuaj pleev, qab zib, daim npog ntsej muag thiab lwm yam khoom.

Ntxiv nrog rau cov khoom lag luam tshuaj pleev ib ce, nws tseem yog qhov tseem ceeb hauv cov khoom noj. Nws paub peb, tab sis peb tsis tshua mloog nws. Raws li "GB 2760-2014 National Food Safety Standard - Food Additive Usage Standard", cov haujlwm ntawm propylene glycol yog: stabilizer, coagulant, anti-caking agent, defoaming agent, emulsifier, noo noo retaining agent, thiab thickener.

Yog li ntawd, nws feem ntau yog siv los ua zaub mov emulsifier ntxiv rau khob cij, butter thiab lwm yam khoom. Tsis tas li ntawd, propylene glycol feem ntau yog siv hauv npias ua thiab cov txheej txheem rho tawm ua cov kuab tshuaj rau cov tshuaj tsw qab.

Tsis tas li ntawd, rau cov phooj ywg uas nyiam ci, propylene glycol yog cov khoom siv feem ntau, uas tuaj yeem pab cov pastries kom tau txais qhov saj zoo dua thiab tsw.

Raws li cov qauv hauv tebchaws, kev nyab xeeb ntawm propylene glycol ua raws li cov qauv tsim los ntawm International Joint Expert Group ntawm Food Additives, uas yog, kev noj txhua hnub yuav tsum tsis pub tshaj 25 mg ib kilogram ntawm lub cev hnyav.

Rau cov neeg laus hnyav 70 kg, qhov siab tshaj plaws noj txhua hnub yog tsis ntau tshaj 1.75 g. Tam sim no, nyob rau hauv lub teb ntawm pastry zaub mov ntau lawm xws li ncuav mog qab zib, thaum siv propylene glycol raws li ib tug additive, txoj kev saws me nyuam yog qhov tseem ceeb uas cov ntsiab lus tsis pub tshaj 3 grams ib kilogram ntawm cov zaub mov.

Propylene glycol tuaj yeem pom zoo siv los ua khoom noj khoom haus thiab tau dhau qhov kev ntsuas kev nyab xeeb. Raws li "tus qauv siv cov xwm txheej thiab kev noj qab haus huv", "siv mus ntev" yuav tsis muaj teeb meem rau kev noj qab haus huv.

tshuaj muaj zog

Propylene glycol
CAS: 57-55-6
Cov mis mos molecular C3H8O2
molecular hnyav 76.09
EINECS tus lej 200-338-0
Melting point -60 ° C (lit.)
Kub taw tes 187 ° C (lit.)
Qhov ceev 1.036 g / mL ntawm 25 ° C (lit.)
Vapor ceev 2.62 (vs huab cua)
Vapor siab 0.08 mm Hg (20 ° C)
Refractive index n20 / D 1.432 (lit.

Cov ntaub ntawv tiv tauj

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