Umenzi we-TianJia Food Additive L-Methionine
I-Methionine yikhompawundi yendalo enye yee-amino acid ezibalulekileyo ezenza umzimba womntu. Ifomula yayo yemolekyuli yi-C5H11O2NS, enomsebenzi wokukhanya kwaye ibandakanyeka ekuqulunqweni kweproteni.
Ngenxa yokuba ayinakuveliswa ngaphakathi, kufuneka ifunyanwe ngaphandle. Ukuba i-methionine ayikho, inokubangela ukuba i-protein synthesis ithintelwe emzimbeni, nto leyo ebangela umonakalo emzimbeni. Ukuxinana kakhulu kwe-lipids ze-membrane okubangelwa yi-oxygen free radicals emzimbeni yimbangela yomonakalo owahlukeneyo emzimbeni. Ii-lipid peroxides zingonakalisa i-lysosomal membranes eziphambili nezesibini, zikhuphe i-acidic phosphatase equlethwe kwi-lysosome njenge-hydrolytic enzyme, nto leyo ebangela umonakalo kwi-organelles ezibalulekileyo ezifana neeseli kunye ne-mitochondrial membranes. I-Methionine ilwa nale monakalo ngeendlela ezahlukeneyo.
Isetyenziswa kakhulu njengesongezelelo sesondlo.Isiphumo somzimba se-L-methionine sifana nese-L-methionine, kodwa ixabiso layo liphantsi (uhlobo lwe-L lwenziwe ngohlobo lwe-DL), ngoko ke i-DL methionine isetyenziswa ngokubanzi. Ii-amino acids ezithintelweyo zifumaneka kukutya okusekwe kwizityalo okufana ne-oats, i-rye, irayisi, umbona, ingqolowa, umgubo wamandongomane, iisoya, iitapile, ispinatshi, njl. Yongeza kukutya okungentla ukuphucula ibhalansi ye-amino acid. Imfuneko iyahluka ngokutya i-cystine. Imfuneko yamadoda amadala yi-1.1g/ngosuku.
Incasa yee-sea urchins inxulumene ne-methionine, ubumnandi bee-sea urchins bunxulumene ne-glycine kunye ne-alanine, ubukrakra bunxulumene ne-valine, kwaye ubutsha bunxulumene ne-glutamate. Ke ngoko, ezi amino acids zinokwenziwa njengee-sea agents.
Isasetyenziswa ekufakweni kwe-amino acid kunye nokulungiselela i-amino acid epheleleyo.
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