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Abstract

In fish processing, viscera are generally considered waste products and often discarded. Our research objective is to use Tra (pangasius) catfish viscera which accounts for 5-6% of body weight as a source of digestive enzymes. This paper investigated the influence of individual visceral organs of Tra catfish on the activities and properties of lipase, protease and amylase. Results revealed that the hepatopancreas was the best source for three digestive enzymes, with the highest activities of lipase (18.426 U.mg-1 protein), protease (2.304 U.mg-1 protein) and amylase (11.473 U.mg- 1 protein), in comparison with intestine or mixed viscera. The optimal pH of Lipases from the hepatopancreas, intestine and mixed viscera were of 8, 7.5 and 8 respectively, of Proteases were of 8.5, 9.5, 9, and of Amylases were of 7.5, 8 and 8, respectively. The maximum activities of lipase, protease, and amylase were found at the temperature of 50, 55 and 400C, respectively.



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Issue: Vol 14 No 4 (2011)
Page No.: 34-43
Published: Dec 30, 2011
Section: Engineering and Technology - Research article
DOI: https://doi.org/10.32508/stdj.v14i4.2005

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Creative Commons License

Copyright: The Authors. This is an open access article distributed under the terms of the Creative Commons Attribution License CC-BY 4.0., which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 How to Cite
Vuong, T., Tran, L., & Luu, D. (2011). PROPERTIES OF DIGESTIVE ENZYMES FROM VISCERAL ORGANS OF TRA (PANGASIUS) CATFISH. Science and Technology Development Journal, 14(4), 34-43. https://doi.org/https://doi.org/10.32508/stdj.v14i4.2005

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