PUTREFACTION OF AMINO ACIDS 245 
O 
N—CH,—CH.—CH,—CH—C7OH = 
yo NH2 
NHa2 
Arginin 
NH2—CH2—CH2—CH 2»—_CHN H2—_COOH 
Ormithin 
— NH 7—CH >—-CH o—CH o—CH o—NHoe 
Putrecin tetramethylene diamin 
Putrefaction of Lysin. Cadaverin is a common product of putre- 
faction. It was first observed by Brieger (1885). It 1s formed from 
lysin in the following manner: 
f® 
CH2NH2—CH2—CH2—CH»—CHN H2—_COH — 
CHeNHz—CHe—CHe—CH»—CH2N He 
Pentamethylene dhamin cadaverin 
Putrefaction of Cystine. 
i 
CHoe CHe 
| | Cysteine first formed. 
CHINE CHNHe 
COOH COOH 
H—C—SH 
| LH 
H—C—N — H2S_ may form in this way. 
Nu 
COOH 
H 
| 
H—C—SH — CH38SH methyl mercaptan may form in 
i this way. 
