Pakati pa zinthu zophikidwa, makeke ambiri ndi makeke amakhala ndi mafuta ambiri. Zina mwazinthuzi zimakhala ndi chinyezi chochepa kwambiri, ukalamba umakhala ndi mphamvu zochepa pa moyo wawo wosungirako, ndipo kutentha kwa mafuta ndi chinthu chachikulu chomwe chimakhudza kukhazikika kwawo.

Kuwonjezera pa katundu wa mafutawo, rancidity ya mafuta imagwirizana mwachindunji ndi kutentha, chinyezi, mpweya, kuwala, ma enzyme ndi ayoni achitsulo monga mkuwa ndi chitsulo muzosungirako.

Pofuna kuonjezera kukhazikika kwa zinthu zomwe zimasungidwa, ma antioxidants ena nthawi zambiri amawonjezeredwa kumafuta kapena zakudya zomwe zimakhala ndi mafuta ochulukirapo kuti achedwetse kapena kuletsa kuwonongeka kwamafuta, zomwe sizingangowonjezera nthawi yosungiramo komanso nthawi ya alumali yazakudya, kubweretsa zabwino zachuma kwa opanga ndi ogulitsa, komanso kubweretsa chitetezo chabwino kwa ogula.

1. Natural antioxidants

Ma antioxidants achilengedwe alibe poizoni komanso otetezeka kugwiritsa ntchito, ndipo chidwi chochulukirapo chimaperekedwa kwa iwo. Tocopherol, guaius resin ndi tiyi polyphenols amagwiritsidwa ntchito popanga makeke.

Mwachitsanzo, tiyi polyphenols, amatchedwanso antioxidant, vitamini polyphenols, antihalin, wotumbululuka chikasu kuti bulauni amadzimadzi njira ndi pang`ono tiyi kukoma, powdery olimba kapena kristalo, astringent, mosavuta sungunuka m'madzi, pang'ono sungunuka mu mafuta, wabwino kutentha kukana, wabwino asidi kukana, tiyi polyphenols ntchito mitanda, akhoza kukulitsa mtundu, kusintha, zomverera bwino katundu ndi odana ndi odana ndi khalidwe odana ndi odana ndi odana ndi khalidwe, kusunga. Zowonjezera ndi 0.05% ~ 0.2%.

2. Synthesize antioxidants

Ambiri mwa ma antioxidants opangidwa ndi phenol, ndipo kuchepa kwa magulu a hydroxyl pa mphete ya benzene, kumapangitsa kuti antioxidant mphamvu.

Nthawi zambiri amagwiritsidwa ntchito mu makeke ndi butyl hydroxyanisole (BHA), dibutylhydroxytoluene (BHT), tert-butylhydroquinone (TBHQ), propyl gallate (PG), etc., chifukwa cha zovuta zachitetezo, mlingo uyenera kuyendetsedwa mosamalitsa.

3. Synergists

Mukamagwiritsa ntchito phenolic antioxidants, ngati zinthu zina za acidic zimawonjezedwa nthawi yomweyo, zotsatira za antioxidant zitha kukhala zabwinoko, makamaka chifukwa zinthu za acidic zimatha kupanga ayoni zitsulo monga mkuwa ndi chitsulo, kuti ayoni apitirire, osalimbikitsanso makutidwe ndi okosijeni amafuta. Zomwe zimagwiritsidwa ntchito pazakudya ndi antioxidant corbic acid, citric acid, etc., kuchuluka kwake kumakhala 1/4 mpaka 1/2 ya antioxidants.

Ndikofunikira kudziwa kuti kuchuluka kwa ma antioxidants omwe amagwiritsidwa ntchito mumitundu yosiyanasiyana yazakudya ndi njira zopangira ndizosiyana. Pogwiritsira ntchito, iyenera kugwiritsidwa ntchito motsatira ndondomeko yoyenera, ndipo mlingo sayenera kuwonjezeka mwachimbulimbuli.