Full resolution (JPEG) - On this page / på denna sida - VIII. Digestion - V. The Chemical Processes in the Intestine
<< prev. page << föreg. sida << >> nästa sida >> next page >>
Below is the raw OCR text
from the above scanned image.
Do you see an error? Proofread the page now!
Här nedan syns maskintolkade texten från faksimilbilden ovan.
Ser du något fel? Korrekturläs sidan nu!
This page has never been proofread. / Denna sida har aldrig korrekturlästs.
518 DIGESTION.
It seems thus to be provided, under physiological conditions, that
putrefaction shall not proceed too far, and the factors which here come
into consideration are probably of different kinds. Absorption is
undoubtedly one of the most important of them, and it has been proved
by actual observation that the putrefaction increases, as a rule, as the
absorption is checked and fluid masses accumulate in the intestine. The
character of the food also has an unmistakable influence, and it seems
as if a large quantity of carbohydrates in the food acts against putre-
faction (Hirschler 1
). It has been shown by Pohl, Biernacki,
Rovighi, Winternitz, Schmitz, and others 2
that milk and kephir
have a specially strong preventive action on putrefaction. This action
is not due to the casein, but chiefly to the lactose and also in part to the
lactic acid.
A specially strong preventive action on putrefaction has been
ascribed for a long time to the bile. This anti-putrid action does not
exist in neutral or faintly alkaline bile, which itself easily putrefies, but
to the free bile-acids, especially taurocholic acid (Maly and Emich,
Lindberger 3
). There is no question that the free bile-acids have a
strong preventive action on putrefaction outside of the organism, and
it is therefore difficult to deny such an action in the acid reacting con-
tents of the intestine. Notwithstanding this, the anti-putrid action
of the bile in the intestine is not considered by certain investigators
(Voit, Rohmann, Hirschler and Terray, Landauer and Rosen-
berg 4
) as of great importance.
Biliary fistulas have been established so as to study the importance
of the bile. in digestion (Schwann, Blondlot, Bidder and Schmidt,5
and others). As a result it has been observed that with fatty foods an
imperfect absorption of fat regularly takes place and the excrement
contains, therefore, an excess of fat and has a light-gray or pale color.
The extent of deviation from the normal after the operation is essen-
tially dependent upon the character of the food. If an animal is fed
on meat and fat, then the quantity of food must be considerably increased
after the operation, otherwise the animal will become very thin, and
1
Hirschler, Zeitschr. f. physiol. Chem., 10; Zimnitzki, ibid., 39 (literature).
2
Schmitz, ibid., 17, 401, which gives references to the older literature, and 19. See
also Salkowski, Centralbl. f. d. med. Wiss., 1893, 467, and Seelig, Virchow’s Arch.,
126 (literature).
3
Maly and Emich, Monatshefte, f. Chem., 4; Lindberger, footnote 4, p. 506.
4
Voit, Beitr. zur Biologie, Jubilaumschrift, Stuttgart, 1882; Rohmann, Pfltiger’s
Arch. 29; Hirschler and Terray, Maly’s Jahresber., 26; Landauer, Math, u. Naturw.
Ber. aus Ungarn, 15; Rosenberg, Arch. f. (Anat. u.) Physiol., 1901.
’Schwann, Miiller’s Arch. f. Anat. u. Physiol., 1844; Blondlot, cited from Bidder
and Schmidt, Verdauungssafte, etc., 98.
<< prev. page << föreg. sida << >> nästa sida >> next page >>
