1.Cov qauv ntawm cov poov tshuaj sorbate Potassium sorbate yog tau los ntawm cov tshuaj tiv thaiv ntawm sorbate nrog potassium carbonate los yog potassium hydroxide, thiab cov qauv ntawm sorbate zoo ib yam li cov me me molecule conjugated fatty acids.
Lub conjugated qauv ntawm cov fatty acids yog -ch = ch-ch = CH-, thiab qhov no txuas ntxiv carbon-carbon ob daim ntawv cog lus qauv (-C = C-) yog heev unstable thiab yooj yim metabolized rau carbon dioxide thiab dej nyob rau hauv tib neeg lub cev, uas lays lub hauv paus rau kev ruaj ntseg ntawm poov tshuaj sorbate.
Cov tshuaj formula ntawm poov tshuaj sorbate yog: CH3-CH = CH-CH = CH-COOK

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2.Cov yam ntxwv ntawm cov poov tshuaj sorbate thiab poov tshuaj sorbate muaj tib yam kev tiv thaiv corrosion, tab sis cov qauv ntawm sorbate zoo ib yam li fatty acids, solubility hauv dej yog dav dav, ua los ntawm cov poov tshuaj sorbate, tuaj yeem yaj hauv dej zoo dua.
Potassium sorbate yog dawb los yog dawb hais los yog hmoov, tsis muaj ntxhiab los yog tsw ntxhiab me ntsis, ruaj khov rau lub teeb thiab kub.
Vim tias cov poov tshuaj sorbate muaj ob qhov sib txuas tsis sib xws, nws yooj yim rau oxidize, tshwj xeeb tshaj yog ob daim ntawv cog lus nyob deb ntawm pawg carboxyl (-COOH) yooj yim rau oxidize, thiab oxidized potassium sorbate yuav tsaus dua.

3.Los ntawm cov qauv ntawm cov poov tshuaj sorbate, nws lub ntsiab qauv yog ib tug me me-molecule conjugated fatty acid qauv, uas yog yooj yim metabolized rau hauv carbon dioxide thiab dej nyob rau hauv tib neeg lub cev, yog li nws muaj kev nyab xeeb.
Pawg Kws Tshaj Lij Tshaj Lij rau Khoom Noj (JECFA), koom ua ke los ntawm World Health Organization (WHO) thiab Food and Agriculture Organization of the United Nations (FAO), tau ua ntau qhov kev ntsuam xyuas kev nyab xeeb ntawm cov poov tshuaj sorbate, thiab cov txiaj ntsig tau pom tias potassium sorbate muaj kev nyab xeeb rau kev siv ntawm cov qauv tshuaj. US Food and Drug Administration (FDA) thiab European Food Safety Authority (EFSA) kuj txiav txim siab poov tshuaj sorbate los ua zaub mov muaj kev nyab xeeb.
Raws li cov ntaub ntawv tshawb fawb txog kev tshawb fawb tam sim no, potassium sorbate tsis tau teev tseg raws li cov carcinogen thawj. Lub Koom Haum Thoob Ntiaj Teb rau Kev Tshawb Fawb Txog Kev Mob Cancer (IARC) faib cov poov tshuaj sorbate raws li qib 3, txhais tau tias cov ntaub ntawv pov thawj muaj tsis txaus los txiav txim siab nws carcinogenic rau tib neeg.