Kawirikawiri m'ndandanda "zokonzedwa", ndi zakudya zambiri, timatha kuona kachidindo kakang'ono ka Е202. Kwa anthu osadziŵa chidwi, komanso kwa iwo omwe alibe chidwi ndi zomwe timadya, tidzatsegula "chinsinsi" cha E202 - ndi mphukira ya potaziyamu. Amapezeka ndi potassium hydroxide ndi sorbic acid. Kwa nthawi yoyamba, asidi uyu, komanso ma salt ena (salt) anapezeka mu 1859 kuchokera ku madzi a Sorbus aucuparia phulusa la mapiri, (choncho dzina la pakompyuta). Mu 1939, anapeza kuti mankhwala omwe amapezeka amapezeka ndi antimicrobial and antitifungal properties. Kuyambira m'ma 1950s, asidi acid ndi ma sorbates a sodium ndi potaziyamu akhala akugwiritsidwa ntchito mu mafakitale monga zakudya - mankhwala omwe salola kuti mabakiteriya ndi nkhungu zonyansa zichulukidwe muzogulitsa, zomwe zimapangitsa kuti alumali akhale moyo.
Zolemba ndi kugwiritsa ntchito E202
Sorbate ya potaziyamu ndi yaying'ono yofiira ya khristalo yokhala ndi zowawa pang'ono, zosavuta. Zimasungunuka mosavuta m'madzi, mopanda mafuta mu ethanol. Kusunga E202 kumagwiritsidwa ntchito kwambiri m'makampani. Amagwiritsidwa ntchito:
- chifukwa chopanga mankhwala osungunula;
- pamene akusunga masamba ndi mankhwala a processing (phwetekere purees, pastas, caviar ku masamba);
- pakupanga zipatso zowonjezera zipatso ndi mabulosi, maluwa, kuphika;
- pakupanga zipatso zouma , e202 yosungiramo ntchito imagwiritsidwanso ntchito;
- popanga tchizi, batala ndi kufalikira;
- Pofuna kupititsa patsogolo alumali moyo wophika;
- kuti apange vinyo wambiri (makamaka vinyo wouma);
- kupanga zakumwa zofewa;
- mu zodzoladzola.
Amagwiritsidwanso ntchito pophatikizana ndi zina zoteteza kuchepetsa kuchuluka kwao (E202-sodium benzoate, mwachitsanzo), popeza E202 ndi analoji otetezeka. Mpanga wa potaziyamu umaloledwa m'mayiko ambiri padziko lapansi - USA, Canada, mayiko a European Union, Russia.
Kodi zotetezera E202 zimavulaza?
Ngakhale kupitirira zaka makumi asanu ndi limodzi, ntchito yosungira E202, pakali pano, sizowononga zotsatira za thupi lino. Zomwe zimachitika sizingakhale zosayembekezereka. Ngakhale asayansi ena akuganiza kuti kugwiritsa ntchito chitetezo chilichonse chingakhoze kuvulaza thupi lathu, chifukwa akhoza kusokoneza ntchito yake pamasom'manja. Ndipo ngakhale kuti sing'anga ya potaziyamu silimatsimikiziridwa kuti incogenic kapena mutagenic zimakhala zovuta kuti zitha kuvulaza, chiwerengero cha chitetezo cha E202 mu chakudya chimayendetsedwa bwino ndi mgwirizano wa mayiko. Kawirikawiri, masamba a mphukira ya potassium amawerengedwa kukhala 0.02-0.2% ya kulemera kwa mankhwala opangidwa.