Enye yezinkinga ngokudla okuphekiwe ukuthi amazinga okushisa aphezulu adala i-protein denaturation. Amandla e-kinetic adalwe ukushisa abangela ukudlidliza okusheshayo kwama-molecule amaprotheni kanye nokubhujiswa kwezibopho zawo. Ikakhulukazi, i-denaturation ihlotshaniswa nokuphulwa kwezakhiwo zesibili neziphakeme zeprotheni. Ayiphuli izibopho ze-peptide zama-amino acid, kodwa iyenzeka kuma-alpha-helices nama-beta-sheets amaprotheni amakhulu, okuholela ekuhlelweni kabusha kwawo okunesiphithiphithi. I-Denaturation esibonelweni samaqanda abilayo - i-protein coagulation. Phela, izinsiza zokwelapha namathuluzi kuvalwa inzalo ngokushisa ukuze kufane nephrotheni yebhaktheriya esele kukho. Impendulo ayicacile. Ngokombono owodwa, i-denaturation ivumela amaprotheni ayinkimbinkimbi ukuthi agayeke kakhulu ngokuwahlephula abe amaketanga amancane. Ngakolunye uhlangothi, amaketanga esiphithiphithi angaba yimbangela eyingozi ye-allergies. Isibonelo esiyinhloko ubisi. Ngokwesimo sawo sokuqala, esivumelana nemvelo, umzimba womuntu uyakwazi ukumunca, naphezu kwezingxenye eziyinkimbinkimbi ze-molecule. Kodwa-ke, ngenxa ye-pasteurization kanye nokwelashwa kokushisa okuphezulu, sithola izakhiwo zamaprotheni ezibangela ukungezwani komzimba. Iningi lethu liyazi ukuthi ukupheka kuqeda imisoco eminingi. Ngokwesibonelo, ukupheka kubulala wonke amavithamini B, uvithamini C, nawo wonke ama-acids anamafutha, ngokuqeda ukubaluleka kwawo okunomsoco noma ngokukhiqiza ukuvuza okungenampilo. Ngokumangalisayo, ukupheka kwandisa ukutholakala kwezinto ezithile. Isibonelo, i-lycopene kumatamatisi lapho ishisa. I-broccoli ene-steam iqukethe ama-glucosinolates amaningi, iqoqo lezinhlanganisela zezitshalo ezaziwa ngokuba nezakhi zokulwa nomdlavuza. Ngenkathi ukwelashwa kokushisa kukhulisa imisoco ethile, kubhubhisa ngokuqinisekile ezinye.
2022-11-11