The digestion of sugars in health / by W.G. Aitchison Robertson.

  • William George Aitchison Robertson
Date:
1894
Catalogue details

Licence: Public Domain Mark

Credit: The digestion of sugars in health / by W.G. Aitchison Robertson. Source: Wellcome Collection.

Provider: This material has been provided by The University of Glasgow Library. The original may be consulted at The University of Glasgow Library.

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    (2.) After two hours, 35 c. c. of turbid brown fluid were drawn oft'. The muscular tissue was furtlier broken down, and fat occurred in larger masses; the total acidity was equal to 0185 per cent, hydrocliloric acid ; inorganic acid was present in large amount, and organic acid also. The peptone reaction was liardly so marked as in the first case, and fibrin, as before, was quickly dissolved. As another control experiment, I washed out this healthy man's stomach and then injected 250 c. c. of normal saline solution ( = 0-7 per cent. NaCl.) (1.) After one hour I drew off 140 c. c. slightly turbid fluid. Total acidity was equal to 0'075 per cent, liydrochloric acid; inorganic acids were alone present. Polariscope gave —1°2. It contained no substance that had any reducing effect on Fehling's solution. After acidifying this fluid and heating it in a water-bath for two hours there was no chemical change. (2.) After two hours 60 c. c. were drawn off. The acidity was equal to 0'178 per cent, hydrochloric acid; inorganic acids were alone present; the polariscope showed —0°'7, and the fluid contained no reducing substance. In this case the polariscope shows a rotation of the polarized ray to the left, although no sugar was present. All proteids are laevo-rotatory, and there are peptones in the gastric fluid after injecting saline solution. This, then, is the character of the gastric fluid with which we have to deal in the case of this healthy digestion. Normal Gastric Digestion of Cane Sugar. In each experiment 250 c. c. of 20 per cent, cane sugar solution were injected into the empty stomach, and samples of this were drawn off at varying intervals. The following Table gives the results of these observations:— to B too Series. durin ii Can( ar was Number ol Cubic Centimetre drawn off. Acidil HCl • cent. lence o rganic cids. ience o ganic cids. col's a o t: p n i '5 f S .S ■< 'C u OJ * Bemarks. Time whic Sug; in St Total as Tlpr Per Invei fori Sto gjc S Minutes I. 30 160 0-09 + + 0-25 2-44 No lactic acid. II. 60 36-6 0-124 + + 0-81 1-28 Trace of lactic acid. III. 60 90 0-115 + + 0-42 1-7 Trace of lactic acid. IV. 90 40 0-125 + ++ + 0-13 0-495 Trace of lactic V. 120 41 0-1428 + 0-68 0-934 acid. VI. 120 85 0-185 ++ + 0-41 0-65 No lactic acid These experiments show— 1. That inversion of cane sugar really takes place in the healthy stomach.
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