
TY  - JOUR
A1  - Day, MF 
A1  - Powning, RF 
T1  - A Study of the Processes of Digestion in Certain Insects
JF  - Australian Journal of Biological Sciences
JO  - Aust. Jnl. Of Bio. Sci.
Y1  - 1949
VL  - 2
IS  - 2
SP  - 175
EP  - 215
KW  - 
UR  - https://doi.org/10.1071/BI9490175 
N2  - Several aspects of the processes of digestion in the insects Blattella germanica, Periplaneta americana, and Tenebrio molitor are reported. In Blattella starved for 2 days, a meal of coloured starch reaches the midgut within 10 minutes and the rectum within 5 hours. The pH of the gut contents on a starch diet is approximately 4.5 in the crop, 6.0 in the midgut, and 8.0 in the hindgut. A protein diet raises the pH of the crop to about 6.0, but does not change that of the other regions. There is a gradient of decreasing redox potential from the crop to the hindgut where the Eh approximates - 0.1 V. at pH 8.0. 
ER  -

