Ingulube ibilokhu iyisakhi esiyinhloko senyama etafuleni lezakhamuzi, futhi iwumthombo obalulekile wamaprotheni asezingeni eliphezulu. Eminyakeni yamuva nje, i-intensiveukuzalanisa izingulubeibilokhu iphishekela kakhulu izinga lokukhula, izinga lokuguqulwa kokudla, izinga lenyama engenamafutha amaningi, umbala okhanyayo wengulube, ukunambitheka okubi nezinye izinkinga, kanti ingulube ithambile futhi imnandi, okuyinto ethandwa umphakathi. Yiziphi izici ezithinta ukunambitheka kwengulube?

1. Izinhlobo

Njengamanje, ama-hydrocarbon, ama-aldehydes, ama-ketone, ama-alcohols, ama-ester, ama-furan, ama-pyrazine nezinye izinto eziguquguqukayo ziye zatholakala engulubeni. Iningi lalezi zingxenye liyafana ezinhlotsheni ezahlukene zenyama, kodwa okuqukethwe kwazo kuhlukile. Isibonelo, izinhlobo zengulube zengulube ziqukethe izandulela zokunambitheka okucebile njengoshukela, amafutha kanye namaprotheni. Izinhlobo zengulube zasendaweni zifuywa ngabantu abasebenzayo bezwe lethu ngokuzalisa isikhathi eside futhi ziyizingobo zofuzo ezibalulekile. Kufanele sinikeze ngokugcwele izinzuzo zezinhlobo zengulube zasendaweni futhi sihlakulele izinhlobo zengulube ezihlukile ezinokunambitheka okuhle.

2. Ubudala nobulili

Ukuthamba kwengulube kuthinteka ubudala bengulube. Amathole engulube, ngenxa yemisipha yawo emincane kanye nokuhlangana okungavuthiwe kwezicubu ezixhumene, asha futhi athambile. Njengoba ukukhula kukhula, ukuhlangana okuvuthiwe kwezicubu ezixhumene kuyanda kancane kancane, futhi imicu yemisipha iba nkulu, okuholela ekunciphiseni ukuthamba. Ezinye izifundo zibonise ukuthi ikhwalithi yenyama iyathuthuka kancane kancane ngokwanda kobudala, kodwa ivame ukuba izinzile ngemva kwezinsuku ezingu-220 ubudala, okudinga ukunakwa eminyakeni yokuhlatshwa kwezingulube enkambisweni yokukhiqiza. Ukuhlatshwa ngaphambi kwesikhathi akuhambisani nokuthuthukiswa kwekhwalithi yenyama, futhi ukuhlatshwa sekwephuzile kuzochitha izindleko zokukhiqiza futhi ngeke kuthuthukise ikhwalithi yenyama. Ikhwalithi yengulube ayithinteki kuphela ngobudala, kodwa futhi nangobulili bengulube. Ama-granule e-cross section e-fiber yemisipha yengulube makhulu, futhi aqukethe i-androstenone, i-skatole, ama-polyunsaturated fatty acids nezinye izinto ezithinta ukunambitheka.

3. Ukondla

Ukondlaikakhulukazi kufaka phakathi izinga lokudla okuphakelayo, ukwakheka kokudla kanye nokuphathwa kokudla. Izinga lokudla okuphakelayo lingenye yezinto ezithinta ikhwalithi yengulube. Ukondla ukudla okunamandla aphezulu kanye neprotheyini ephansi, ingulube inokuqukethwe okuphezulu kwamafutha kanye nekhwalithi yenyama ethambile; Ukondla ukudla okuneprotheyini ephezulu kanye namandla aphansi, inyama incane futhi okuqukethwe kwamafutha kuphansi; Ama-amino acid afana ne-lysine, i-threonine kanye ne-cysteine ​​nawo anomthelela omkhulu kwikhwalithi yenyama, ngakho-ke kufanele kuqashelwe inani lokwengezwa kokudla. Ngaphezu kwezinga lezakhamzimba lokudla, ukwakheka kokudla kuzothinta nekhwalithi yengulube. Ukondla ummbila omningi kuzokwenza ingulube ibe phuzi, ikakhulukazi ngoba umbala ophuzi kummbila ufakwa emafutheni engulube kanye nezicubu zemisipha; I-Thiopropene, i-propylene disulfide, i-allicin, ama-aromatics nezinye izinto ekudleni kuzobangela iphunga elikhethekile lengulube futhi kuthinte ikhwalithi yenyama. Ukwengezwa kwe-Eucommia ulmoides leaves extract njengesengezo sokudla ekudleni kungasiza ekwakheni i-collagen futhi kuthuthukise ikhwalithi yengulube. Ngaphezu kwalokho, ikhwalithi yengulube izothinteka futhi ngezindlela zokudla. Isibonelo, kukhona inkundla yezemidlalo ekhethekile yezingulube. Ukwandisa inani le-ukudla okuluhlazakanye nokudla okuqinile kungathuthukisa ikhwalithi yengulube.

4. Ezinye izinto

Izinto ezibangela ukuhlatshwa ngaphambi kokubulawa njengendlela yokuhlaba, isikhathi sokulinda, isikhathi sokuhamba, kanye nokwelashwa ngemva kokufa njengokushisa kwechibi elishisa kakhulu kanye nendlela yokupheka kuzothinta ikhwalithi yengulube. Isibonelo, uma kuqhathaniswa nokushaqeka kukagesi, ukuminyana kwe-carbon dioxide kunganciphisa kakhulu ukwanda kwemisipha emhlophe; Ukunciphisa isikhathi sokuhamba nokwandisa isikhathi sokuhlatshwa kunganciphisa ukucindezeleka kwezingulube; Akulula ukuthi izinga lokushisa kwechibi elishisa kakhulu libe phezulu kakhulu. Uma izinga lokushisa lidlula ama-60 ℃, ingulube izoshiswa bese igoqwa, okuzothinta ukunambitheka kwengulube.

Ngamafuphi, ekukhiqizweni kwangempela, kufanele sikhethe izinhlobo ezifanele, siqinise ukuphathwa kokudla kwesayensi, sinciphise ukucindezeleka ngaphambi kokuhlatshwa kanye nezinye izici zomthetho ukuqinisekisa ikhwalithi yenyama engcono kakhulu.