[135] Chittenden and Mendel: _Ibid._, vol. xvii, p. 48. _Proteolysis of Glutenin_[136] _from Wheat._ ==+========================================= | Mother | Proto- | Hetero- | Deutero- |Proteid.|glutenose.|glutenose.|glutenose. --+--------+----------+----------+---------- C | 52.34 | 51.42 | 51.82 | 49.85 H | 6.83 | 6.70 | 6.79 | 6.69 N | 17.49 | 17.56 | 17.43 | 17.57 S | 1.08 | 1.34 | 1.59 | 0.80 O | 22.26 | 22.98 | 22.37 | 25.09 --+--------+----------+----------+---------- [136] Formerly called gluten-casein, and the products gluten-caseoses. Chittenden and E. E. Smith: Journal of Physiol., vol. xi, p. 420. _Proteolysis of Zein._[137] ============================================ |Mother Proteid.|Protozeose.|Deuterozeose. --+---------------+-----------+------------- C | 55.23 | 53.29 | 51.31 H | 7.26 | 6.87 | 6.88 N | 16.13 | 16.10 | 16.27 S | 0.60 | 1.54 | 1.08 O | 20.78 | 22.20 | 24.46 --+---------------+-----------+------------- [137] Chittenden and Williams: Not heretofore published. In considering these results, it is to be noticed that there is a general unanimity of agreement except in the case of the albuminoid gelatin. In the proteolysis of this body, for some reason not explainable, the digestive products show no marked deviation from the composition of the mother-proteid, but in every other instance there is to be traced a distinct tendency toward diminution in the content of carbon, proportional to the extent of proteolysis. In the primary bodies, proto and heteroproteoses, the percentage of carbon is only slightly lowered; indeed, in some few cases, notably in elastin and casein, the primary products show a slight increase in their content of carbon, but in most instances there is a slight falling off in the percentage of this element. In the deuteroproteoses, however, the loss of carbon is very marked. The percentage loss, to be sure, varies with the different proteids, doubtless dependent in part upon the nature of the proteid itself, and also, I think, upon the strength of the proteolytic agent employed and the duration of the proteolysis. It is to be further noticed that peptones, whenever analyzed, show a still further loss of carbon and also a marked loss of sulphur. In nitrogen there is no constant difference.