Ko te propylene glycol he wai kore tae, he haunga, he wai kakano paku ake i te wai. Karekau he reka, he taapiri kai matū kua whakahiatotia. Pērā i te waihā, he matū waipiro.

I tua atu, hei whakarewa waro, ka taea e ia te whakakore i etahi wairewa waro pai ake i te wai, ka taea hoki te pupuri pai i te makuku. Na enei ahuatanga matū motuhake, ka whakamahia nuitia ki nga mahi whakapaipai. Ka taea te whakamahi i te propylene glycol hei moisturizer, hei whakangawari, hei whakarewa, me etahi atu, he pai rawa atu te whakamakuku me nga paanga tono. Ka taea te whakamahi ki nga mea whakapaipai katoa, ina koa te wai, te wai, te kirīmi, te kanohi kanohi me etahi atu hua.

I tua atu i te mara whakapaipai, he mea nui ki te mara kai. E mohio ana ia ki a tatou, engari he iti noa ta tatou aro ki a ia. E ai ki te "GB 2760-2014 National Food Safety Standard - Food Additive Usage Standard", ko nga mahi o te propylene glycol ko: te whakapumau, te coagulant, te anti-caking agent, te whakakore i te waipiro, te emulsifier, te makuku pupuri makuku, me te matotoru.

No reira, he maha nga wa e whakamahia ana hei whakaemi kai hei tapiri atu ki te taro, pata me etahi atu hua. I tua atu, he maha nga wa e whakamahia ana te propylene glycol ki te tukatuka pia me nga tukanga tangohanga hei whakarewa mo nga mea kakara.

I tua atu, mo nga hoa e pai ana ki te tunu, ko te propylene glycol he hua e whakamahia nuitia ana, ka awhina i nga keke kia pai ake te reka me te reka.

E ai ki nga paerewa a-motu, ko te kai haumaru o te propylene glycol e whai ana i nga paerewa kua whakaritea e te International Joint Expert Group on Food Additives, ara, ko te kai o ia ra kaua e neke ake i te 25 mg ia kirokaramu o te taumaha tinana.

Mo te pakeke e 70 kg te taumaha, ko te nui o te kai o ia ra kaua e neke ake i te 1.75 g. I tenei wa, i roto i te waahi o te hanga kai keke penei i te keke, ina whakamahi i te propylene glycol hei taapiri, ko te huarahi e whakamahia ana ko te mea kaore e neke ake i te 3 karamu ia kirokaramu o te kai.

Ko te propylene glycol ka whakaaetia kia whakamahia hei taapiri kai, kua paahitia nga aromatawai haumaru. I raro i nga "whakamahinga paerewa me nga whakaurunga", "ko te kai mo te wa roa" ka kore e kino ki te hauora.

āhuatanga matū

Propylene glycol
CAS:57-55-6
tātai rāpoi C3H8O2
taumaha ngota 76.09
EINECS nama 200-338-0
Ira whakarewa -60 °C (marama)
Ira kohua 187 °C (marama)
Kiato 1.036 g/mL i te 25 °C (marama)
Kiato ngohe 2.62 (me te hau)
Te pehanga kohu 0.08 mm Hg (20 °C)
Taupū mataaro n20 /D 1.432(marama.

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