The disscoiative ion-electron recombination (DR) cross section and branching ratios in protonated dimethyl disulfide (DMDS) and N-methylacetamide, were analyzed at electron energies ranging from 0.001 to 0.3 eV. The protonated molecules of DMDS and N-methylacetamide-2,2,2-d3 were used to measure DR branching ratios at 0 eV collision energy. It was observed that cleavage of CSS-C bond was most dominant channel in the protonated DMDS. The dominant channel for recombination of protonated N-methylacetamide-2,2,2-dI3I results in production of a hydrogen atom. The results show that protonated proteins may release hydrogens upon electron capture dissociation (ECD) and some of the cleavages observed are hydrogen capture induced.