Digestive Enzymes in the Crayfish Cherax albidus : Polymorphism and Partial Characterization
Joint Authors
Coccia, Elena
Varricchio, Ettore
Paolucci, Marina
Source
International Journal of Zoology
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-05-24
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
We will deal with the partial characterization and the activity of the following digestive enzymes: amylase, pectinase, alginase, lipase, and protease present in the digestive tract of juvenile freshwater crayfish Cherax albidus.
Gastric juices, the hepatopancreas, and the intestine were sampled for enzyme analysis.
Among carbohydratases, amylase activity was the highest.
It was significantly higher in the intestine than in the gastric juice and hepatopancreas.
Lipase activity was significantly higher in the hepatopancreas and the intestine compared to the gastric juice.
Both alkaline and acid proteases were found.
Alkaline proteases were characterized by employing specific protease inhibitors.
Both trypsin and chymotrypsin activity was detected.
The majority of alkaline protease activity was ascribable to trypsin.
Several isoforms of digestive enzymes were identified by gel electrophoresis.
This work provides basic information to study the digestive abilities of crayfish.
American Psychological Association (APA)
Coccia, Elena& Varricchio, Ettore& Paolucci, Marina. 2011. Digestive Enzymes in the Crayfish Cherax albidus : Polymorphism and Partial Characterization. International Journal of Zoology،Vol. 2011, no. 2011, pp.1-9.
https://search.emarefa.net/detail/BIM-462443
Modern Language Association (MLA)
Coccia, Elena…[et al.]. Digestive Enzymes in the Crayfish Cherax albidus : Polymorphism and Partial Characterization. International Journal of Zoology No. 2011 (2011), pp.1-9.
https://search.emarefa.net/detail/BIM-462443
American Medical Association (AMA)
Coccia, Elena& Varricchio, Ettore& Paolucci, Marina. Digestive Enzymes in the Crayfish Cherax albidus : Polymorphism and Partial Characterization. International Journal of Zoology. 2011. Vol. 2011, no. 2011, pp.1-9.
https://search.emarefa.net/detail/BIM-462443
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-462443