A comparative study of intestinal phlorizin hydrolase in various animal species

Ramaswamy, S. ; Radhakrishnan, A. N. (1972) A comparative study of intestinal phlorizin hydrolase in various animal species Comparative Biochemistry and Physiology Part A: Physiology, 43 (1). pp. 173-179. ISSN 0300-9629

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Official URL: http://linkinghub.elsevier.com/retrieve/pii/030096...

Related URL: http://dx.doi.org/10.1016/0300-9629(72)90479-3

Abstract

1. Phlorizin hydrolase activity has been determined in the intestinal homogenates of ten species. The activity decreased in the following order: frog, rabbit, squirrel, rat and monkey. The activity was either very low or could not be detected in chicken, pigeon, guinea-pig, goat and human. 2. The enzyme was optimally active in the pH range 5·0-5·7 in all the species investigated expect in the squirrel for which the range was 4·1-4·7. 3. The distribution of phlorizin hydrolase along the length of the intestine was almost similar in rat, rabbit and monkey and maximal activity is found in the midgut. 4. The developmental pattern for phlorizin hydrolase and lactase in rat intestine during growth was found to be markedly different.

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