Kolagen ni poroteyine nyinshi mu mubiri, na gelatine ni uburyo butetse bwa kolagen.Nkibyo, bafite imitungo myinshi ninyungu.Ariko, imikoreshereze yabo nibisabwa biratandukanye cyane.Kubwibyo, ntibishobora gukoreshwa muburyo bumwe kandi ushobora guhitamo guhitamo kimwe cyangwa ikindi depen ...
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