Propylene glycol ndi madzi opanda mtundu, osanunkhiza, owoneka pang'ono okhala ndi mawonekedwe okhuthala pang'ono kuposa madzi. Zilibe pafupifupi kukoma ndipo ndi mankhwala apanga chakudya zowonjezera. Mofanana ndi ethanol, ndi mowa.

Komanso, monga zosungunulira organic, akhoza kusungunula ena organic solutes kuposa madzi komanso kusunga chinyezi bwino. Chifukwa cha mankhwala apaderawa, amagwiritsidwa ntchito kwambiri muzodzoladzola. Propylene glycol nthawi zambiri imatha kugwiritsidwa ntchito ngati moisturizer, softener, solvent, etc., ndipo imakhala ndi zotsatira zabwino kwambiri zokometsera ndi kugwiritsa ntchito. Itha kugwiritsidwa ntchito pafupifupi zodzoladzola zonse, makamaka madzi, mafuta odzola, zonona, chigoba cha nkhope ndi zinthu zina.

Kuphatikiza pa gawo la zodzoladzola, ndilofunikanso kwambiri pazakudya. Imatidziwa, koma sitisamala kwenikweni. Malinga ndi "GB 2760-2014 National Food Safety Standard - Food Additive Usage Standard", ntchito za propylene glycol ndi: stabilizer, coagulant, anti-caking agent, defoaming agent, emulsifier, agent kusunga chinyezi, ndi thickener.

Chifukwa chake, nthawi zambiri amagwiritsidwa ntchito ngati emulsifier yazakudya kuti awonjezere ku mkate, batala ndi zinthu zina. Kuphatikiza apo, propylene glycol nthawi zambiri imagwiritsidwa ntchito popanga moŵa ndi njira zochotseramo ngati zosungunulira za zinthu zonunkhira.

Kuonjezera apo, kwa abwenzi omwe amakonda kuphika, propylene glycol ndi mankhwala omwe amagwiritsidwa ntchito nthawi zambiri, omwe angathandize makeke kupeza kukoma ndi kukoma kwabwino.

Malinga ndi miyezo ya dziko, kudya kotetezeka kwa propylene glycol kumatsatira miyezo yokhazikitsidwa ndi International Joint Expert Group on Food Additives, ndiko kuti, kudya kwa tsiku ndi tsiku kuyenera kusapitirira 25 mg pa kilogalamu ya kulemera kwa thupi.

Kwa munthu wamkulu wolemera makilogalamu 70, kuchuluka kwa tsiku ndi tsiku sikuposa 1.75 g. Pakalipano, m'munda wa zakudya zopangira makeke monga makeke, pogwiritsira ntchito propylene glycol monga chowonjezera, njira yomwe imagwiritsidwira ntchito ndi yakuti zomwe zili mkati sizidutsa 3 magalamu pa kilogalamu ya chakudya.

Propylene glycol imatha kuvomerezedwa kuti igwiritsidwe ntchito ngati chowonjezera chazakudya ndipo yadutsa mayeso okhwima otetezedwa. Pansi pa "zochitika zogwiritsiridwa ntchito mokhazikika ndi kudya", "kugwiritsa ntchito nthawi yayitali" sikungakhale kovulaza thanzi.

mankhwala katundu

Propylene glycol
CAS: 57-55-6
Molecular formula C3H8O2
Kulemera kwa molekyulu 76.09
Nambala ya EINECS 200-338-0
Malo osungunuka -60 °C (kuyatsa)
Malo otentha 187 ° C (lit.)
Kachulukidwe 1.036 g/mL pa 25 °C (lit.)
Kuchuluka kwa nthunzi 2.62 (vs mpweya)
Kuthamanga kwa nthunzi 0.08 mm Hg (20 °C)
Refractive index n20 /D 1.432(lit.

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