Nisinndi chilengedwe chosungira chakudya chomwe chatchuka m'zaka zaposachedwa chifukwa cha kuthekera kwake kuwonjezera moyo wa alumali wa chakudya.Nisin, wochokera ku Lactococcus lactis, ndi chowonjezera cha chakudya chomwe chimalepheretsa kukula kwa mabakiteriya, makamaka omwe amayambitsa kuwonongeka kwa chakudya.

Odziwika ngati polypeptide, nisin amapezeka mwachilengedwe muzakudya zosiyanasiyana zofufumitsa ndipo wakhala akugwiritsidwa ntchito kusunga chakudya kwa zaka mazana ambiri.Zimagwira ntchito poyang'ana makoma a maselo a mabakiteriya, kuwapangitsa kuti awonongeke ndikulepheretsa kukula kwawo.Kachitidwe kachilengedwe kameneka kamasiyanitsa nisin ndi zinthu zina zotetezera mankhwala, zomwe nthawi zambiri zimabweretsa ngozi.

Nisin wamtundu wachakudya wavomerezedwa ndi mabungwe olamulira monga Food and Drug Administration (FDA) ndi European Food Safety Authority (EFSA) ngati chosungira zakudya zosiyanasiyana.Izi zikuphatikizapo nyama yophika, mkaka, zamzitini, ngakhale zakumwa.Chifukwa cha chilengedwe chake komanso mbiri yachitetezo, nisin amadziwika kuti ndi chisankho chotetezeka komanso chothandiza.

Mmodzi mwa ubwino waukulu wa nisin monga chakudya chosungira chakudya ndi yotakata sipekitiramu antimicrobial ntchito.Zasonyezedwa kuti zimagwira ntchito motsutsana ndi mabakiteriya osiyanasiyana, kuphatikizapo tizilombo toyambitsa matenda timene timadya.Poletsa kukula kwa mabakiteriyawa, nisin imathandiza kuti zakudya zisawonongeke komanso zimachepetsa chiopsezo cha matenda obwera chifukwa cha zakudya.

Kuphatikiza apo, nisin imakhalabe yokhazikika ngakhale kutentha kwambiri komanso acidic, kupangitsa kuti ikhale yoyenera njira zosiyanasiyana zopangira chakudya.Kukaniza kwake kutentha kumatsimikizira kuti imasungabe zinthu zake zotetezera ngakhale zitaphika kapena kusungunuka, kukulitsa moyo wa alumali popanda kusokoneza kukoma kapena khalidwe.

Phindu lina lodziwika bwino la nisin monga chosungira chakudya ndikuti silikhudza kwambiri mphamvu zazakudya.Mosiyana ndi zinthu zina zotetezera mankhwala zimene zingasinthe kakomedwe ka chakudya kapena kamangidwe kake, nisin anapezeka kuti alibe mphamvu zokhuza mphamvu za kamvedwe kake.Izi zikutanthauza kuti zakudya zosungidwa ndi nisin zimatha kusunga kukoma kwawo koyambirira komanso mawonekedwe ake, zomwe zimapatsa ogula chidziwitso chapamwamba.

Nisin nthawi zambiri imapezeka ngati ufa ndipo imatha kuphatikizidwa mosavuta m'njira zopangira chakudya.Opanga zakudya amatha kuwonjezera kuchuluka kwa ufa wa nisin pamapangidwe awo kuti akwaniritse zoteteza zomwe akufuna.Kuonjezera apo, ufa wa nisin uli ndi kukhazikika kwapamwamba komanso moyo wautali wautali, zomwe zimapangitsa kukhala chisankho chotsika mtengo posungira chakudya.

Pomaliza, nisin ndi chosungira chakudya chachilengedwe chokhala ndi zabwino zambiri.Ma antimicrobial properties, ntchito zamitundu yosiyanasiyana, kukana kutentha komanso kukhudzidwa kochepa pamagulu amtundu wazinthu zimapangitsa kuti ikhale chida chamtengo wapatali kwa opanga zakudya.Ndi chivomerezo chake chowongolera komanso chitetezo chotsimikizika, nisin ikupitilizabe kuchita gawo lofunikira pakukulitsa moyo wa alumali wazakudya zosiyanasiyana ndikuwonetsetsa kuti ogula ali abwino komanso otetezeka.

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