He wai ʻaʻohe kala, ʻala ʻole, he wai mānoanoa iki ka propylene glycol me kahi ʻano mānoanoa iki ma mua o ka wai. ʻAneʻane ʻaʻohe ona ʻono a he mea hoʻohui meaʻai i hana ʻia me nā kemika. E like me ka ethanol, he mea ʻona ia.
Eia kekahi, ma ke ʻano he mea hoʻoheheʻe organik, hiki iā ia ke hoʻoheheʻe i kekahi mau mea hoʻoheheʻe organik ma mua o ka wai a hiki ke mālama maikaʻi i ka makū. Ma muli o kēia mau waiwai kemika kūikawā, hoʻohana nui ʻia ia i nā mea hoʻonani. Hiki ke hoʻohana pinepine ʻia ka propylene glycol ma ke ʻano he moisturizer, softener, solvent, a me nā mea ʻē aʻe, a he hopena moisturizing a me ka hoʻopili maikaʻi loa. Hiki ke hoʻohana ʻia i aneane nā mea hoʻonani āpau, ʻoiai ka wai, ka lotion, ka kirīmi, ka mask maka a me nā huahana ʻē aʻe.
Ma waho aʻe o ke kahua o nā mea hoʻonani, he mea nui hoʻi ia i ke kahua meaʻai. Ua ʻike ʻia mākou, akā ʻaʻole mākou e nānā nui iā ia. Wahi a ka "GB 2760-2014 National Food Safety Standard - Food Additive Usage Standard", ʻo nā hana o ka propylene glycol: stabilizer, coagulant, anti-caking agent, defoaming agent, emulsifier, moisture retention agent, a me thickener.
No laila, hoʻohana pinepine ʻia ia ma ke ʻano he emulsifier meaʻai e hoʻohui ʻia i ka berena, ka pata a me nā huahana ʻē aʻe. Eia kekahi, hoʻohana pinepine ʻia ka propylene glycol i nā hana hana pia a me nā kaʻina hana unuhi ma ke ʻano he mea hoʻoheheʻe no nā mea ʻala.
Eia kekahi, no nā hoaaloha makemake e hoʻomoʻa, ʻo ka propylene glycol kahi huahana i hoʻohana pinepine ʻia, hiki ke kōkua i nā mea pastries e loaʻa kahi ʻono a me ka ʻono maikaʻi.
Wahi a nā kūlana aupuni, ua hahai ka lawe palekana ʻana o ka propylene glycol i nā kūlana i hoʻonohonoho ʻia e ka International Joint Expert Group on Food Additives, ʻo ia hoʻi, ʻaʻole pono e ʻoi aku ka nui o ka lawe ʻana i kēlā me kēia lā ma mua o 25 mg no ke kilokani o ke kaumaha o ke kino.
No ke kanaka makua e kaupaona ana he 70 kg, ʻaʻole ʻoi aku ka nui o ka ʻai ʻana i kēlā me kēia lā ma mua o 1.75 g. I kēia manawa, ma ke kahua o ka hana ʻana i nā meaʻai pastry e like me nā keke, i ka wā e hoʻohana ai i ka propylene glycol ma ke ʻano he mea hoʻohui, ʻo ke ʻano i hoʻohana ʻia, ʻaʻole ia e ʻoi aku ka nui o ka meaʻai ma mua o 3 grams no ka kilokani o ka meaʻai.
Hiki ke ʻae ʻia ka propylene glycol no ka hoʻohana ʻana ma ke ʻano he mea hoʻohui meaʻai a ua hala i nā loiloi palekana koʻikoʻi. Ma lalo o nā "hiʻohiʻona hoʻohana maʻamau a me nā lawe ʻana", ʻaʻole e hōʻino ka "hoʻopau lōʻihi" i ke olakino.
nā waiwai kemika
ʻO ka propylene glycol
CAS:57-55-6
ʻO ke ʻano molekole C3H8O2
kaumaha molekala 76.09
Helu EINECS 200-338-0
Kikowaena hoʻoheheʻe -60 °C (lit.)
Ka paila ʻana 187 °C (lit.)
Ka nui o ka paʻa 1.036 g/mL ma 25 °C (lit.)
Ka nui o ka mahu 2.62 (vs ea)
Kaomi mahu 0.08 mm Hg (20 °C)
ʻIke kuhikuhi refractive n20 /D 1.432 (lit.
ʻIke Hoʻokaʻaʻike
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