Njengoba abantu abaningi befuna ezinye izindlela zokusebenzisa inyama yezilwane, ucwaningo olusha luthole umthombo omangalisayo wamaprotheni anobungani nemvelo - ulwelwe.

Ucwaningo olwenziwe yi-University of Exeter, olushicilelwe kuyi-Journal of Nutrition, lungolokuqala lohlobo lwalo olubonisa ukuthi ukudla ulwelwe olubili olucebile ngamaprotheni oluyigugu kakhulu kwezentengiselwano kungasiza ekuvuseleleni imisipha kubantu abadala abasebasha nabaphilile. Okutholakele ocwaningweni lwabo kusikisela ukuthi ulwelwe lungaba yindawo ethokozisayo neqhubekayo yeprotheni etholakala ezilwaneni yokugcina nokuthuthukisa imisipha.

U-Ino Van Der Heijden, umcwaningi eNyuvesi yase-Exeter, uthe, “Ucwaningo lwethu lusikisela ukuthi ulwelwe lungaba yingxenye yokudla okuphephile nokuqhubekayo esikhathini esizayo.” Ngenxa yezizathu zokuziphatha kanye nezemvelo, abantu abaningi bazama ukudla inyama encane, futhi kukhona intshisekelo ekhulayo emithonjeni engeyona eyezilwane kanye namaprotheni akhiqizwa ngendlela eqhubekayo. Sikholelwa ukuthi kubalulekile ukuqala ukucwaninga ngalezi zindlela, futhi sithole ulwelwe njengomthombo omusha othembisayo wamaprotheni.

Ukudla okucebile ngamaprotheni nama-amino acid abalulekile kunekhono lokukhuthaza ukwakheka kwamaprotheni emisipha, okungalinganiswa elabhorethri ngokulinganisa ukubopha kwama-amino acid anelebula kumaprotheni ezicubu zemisipha bese kuguqulwa kube amazinga okuguqulwa.

Amaprotheni atholakala ezilwaneni angakhuthaza kakhulu ukwakheka kwamaprotheni emisipha ngesikhathi sokuphumula nokuzivocavoca. Kodwa-ke, ngenxa yokukhathazeka okwandayo kokuziphatha kanye nemvelo okuhlobene nokukhiqizwa kwamaprotheni asekelwe ezilwaneni, manje sekutholakale ukuthi enye indlela ethakazelisayo enobungani nemvelo yi-algae, engathatha indawo yamaprotheni avela emithonjeni yezilwane. I-Spirulina ne-Chlorella ezikhuliswe ngaphansi kwezimo ezilawulwayo ziyizinhlobo ezimbili ze-algae ezibaluleke kakhulu kwezentengiselwano, eziqukethe imithamo ephezulu yezakhamzimba ezincane kanye namaprotheni amaningi.

Kodwa-ke, ikhono le-spirulina kanye ne-microalgae lokukhuthaza ukwakheka kwamaprotheni e-myofibrillar yomuntu alikacaci. Ukuze baqonde lo mkhakha ongaziwa, abacwaningi e-University of Exeter bahlole imiphumela yokudla amaprotheni e-spirulina kanye ne-microalgae ekugxilweni kwama-amino acid egazini kanye namazinga okwenziwa kwamaprotheni e-fiber yemisipha yokuphumula kanye nangemuva kokuzivocavoca, futhi bawaqhathanisa namaprotheni okudla angewona awezilwane asezingeni eliphezulu (amaprotheni e-fungus atholakala ku-fungal).

Intsha engu-36 enempilo ihlanganyele esivivinyweni esingahleliwe sokungaboni kahle. Ngemva kweqembu lokuzivocavoca, ababambiqhaza baphuze isiphuzo esiqukethe amagremu angu-25 eprotheyini etholakala ku-fungus, iprotheyini ye-spirulina noma i-microalgae. Qoqa amasampula emisipha yegazi kanye nemisipha yamathambo ekuqaleni, emahoreni ama-4 ngemva kokudla, kanye nangemva kokuzivocavoca. Ukuze kuhlolwe ukuhlushwa kwe-amino acid egazini kanye nezinga lokwenziwa kweprotheyini ye-myofibrillar yezicubu zokuphumula kanye nezicubu zokuzivocavoca ngemva kokuzivocavoca. Ukudla kweprotheyini kwandisa ukuhlushwa kwe-amino acid egazini, kodwa uma kuqhathaniswa nokudla iphrotheyini ye-fungus kanye ne-microalgae, ukudla i-spirulina kunezinga lokukhula okusheshayo kanye nempendulo ephezulu. Ukudla kweprotheyini kwandisa izinga lokwenziwa kwamaprotheni e-myofibrillar ezicutshini zokuphumula nezokuzivocavoca, kungekho mehluko phakathi kwamaqembu amabili, kodwa izinga lokwenziwa kwemisipha yokuzivocavoca laliphezulu kunelemisipha ephumulile.

Lolu cwaningo lunikeza ubufakazi bokuqala bokuthi ukumuncwa kwe-spirulina noma i-microalgae kungakhuthaza kakhulu ukwakheka kwamaprotheni e-myofibrillar ekuphumuleni nasekuzivocavoceni kwezicubu zemisipha, okuqhathaniswa nezinto ezingezona ezezilwane ezisezingeni eliphezulu (amaprotheni e-fungal)