Intestinale β-Galactosidase-Aktivität im gnotobiotischen Tier nach Monoassoziation mit verschiedenen E. coli-Stämmen
✍ Scribed by Schulze, J. ;Herzog, Renate ;Müller-Beuthow, Walheide ;Grütte, F.-K.
- Book ID
- 102214612
- Publisher
- John Wiley and Sons
- Year
- 1987
- Tongue
- English
- Weight
- 262 KB
- Volume
- 31
- Category
- Article
- ISSN
- 0027-769X
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✦ Synopsis
Germ-free rats were monoassociated by E. coli germs not utilizing (L-) or utilizing lactose (L+) on endo-medium. There was no influence of germ status on the beta-galactosidase activity in the mucosa of the small and large intestine. With standard food, beta-galactosidase activity were to be measured in the chymus of all intestinal segments and in the faeces of germ-free as well as of monoassociated rats. In the chymus of caecum and colon and in the faeces of E. coli(L+)-animals, only, the short-time (12-16 days) application of lactose containing food resulted in an increase of the enzyme activity. Compared with the E. coli(L-)-animals, the lactose content in the chymus of all intestinal segments of this test group was decreased.