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International Journal of Zoology and Applied Biosciences Research Article
Study of enzyme activity in the land snail Cryptozona bistrialis in Nagapattinam, Tamil Nadu India
V. Valarmathi and S. Asokan
Year : 2017 | Volume: 2 | Issue: 2 | Pages: 77-82
Received on: 07/13/2016
Revised on: 08/10/2016
Accepted on: 08/29/2016
Published on: 04/03/2017
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V. Valarmathi and S. Asokan( 2017).
Study of enzyme activity in the land snail Cryptozona bistrialis in Nagapattinam, Tamil Nadu India
. International Journal of Zoology and Applied Biosciences, 2( 2), 77-82.
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Abstract
Enzyme assay was made to amylase, protease, lipase, cellulase, acid phosphatase and alkaline phosphatase in different zones of the gastrointestinal tract and digestive gland of the land snail Cryptozona bistrialis in summer and monsoon season. The amylase activity ranged from 2.46 to 8.42 IU/mg/protein. Protease varied from 1.69 to 3.90 µ mole tyrosine /mg/ protein/ hr. Lipase activity ranged from 1.01 to 5.01 µ mole tyrosine/ mg/ protein/ hr. The total activity of cellulase ranged between 0.74 and 13.12 μ mole tyrosine/mg/protein/hr. The level of acid phosphatase ranged from 1.7 to 4.03 µ mole p-nitrophenol/ mg/ protein /hr and alkaline phosphatase level ranged from 3.27 to 4.90 µ mole/ p-nitrophenol/ mg/ protein/ hr. The highest activity of enzymes were noticed in the digestive gland and lowest activity was found in stomach in both seasons. It was also observed that the land sail C.bistrialis showed strong amylase activity followed by alkaline phosphatase. Seasonally the maximum activity of enzymes were found in monsoon and minimum was in summer.
Keywords
Enzyme activity, Gastrointestional tract, Digestive gland, Cryptozona bistrialis, Seasonal changes.
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© The Author(s) 2025. This article is published by International Journal of Zoology and Applied Biosciences under the terms of the Creative Commons Attribution 4.0 International License (creativecommons.org), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
