Citation
Joseph Sincy, . and Saramma A. V., . Impact of cyanobacterium Lyngbya semiplena on antioxidant status of a tropical teleost Oreochromis mossambicus (Peters). pp. 461-471. ISSN 0116-6514
Abstract
Biological antioxidants are compounds that protect biological system against the harmful effect of free radicals. The acetone extracts of the cyanobacterium Lyngbya semiplena isolated from Cochin estuary was found to act as an effective antioxidant in the oxidation system of emulsified linoleic acid in vitro. Antioxidant properties were expressed in vivo also. When the cyanobacterium was incorporated in the feed of ethanol-exposed Oreochromis mossambicus it could protect the fish from lipid peroxidation and from subsequent tissue damage. Lipid peroxidation was assessed in terms of malondialdehyde hydroperoxides and conjugated dienes Antioxidant enzymessuch as superoxide dismutase catalase glutathione peroxidase glutathione reductase and glutathiones -transferase and non-enzymic antioxidant substance glutathione in various tissues were also determined. Higher levels of lipid peroxidation were observed in the animal tissues on exposure to ethanol. However there was a decrease in ethanol accentuated lipid peroxidation on co-treatment with cyanobacterial feed. Experimental diets could effectively bring down the requirement of defensive antioxidant enzymes in various tissues indicating that cyanobacteria could act as an antioxidant by scavenging the free radicals produced during ethanol exposure. Lyngbya semiplena is a food grade organism highly nutritious and readily available from natural waters. These properties render it attractive for use in fish feed.
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Abstract
Biological antioxidants are compounds that protect biological system against the harmful effect of free radicals. The acetone extracts of the cyanobacterium Lyngbya semiplena isolated from Cochin estuary was found to act as an effective antioxidant in the oxidation system of emulsified linoleic acid in vitro. Antioxidant properties were expressed in vivo also. When the cyanobacterium was incorporated in the feed of ethanol-exposed Oreochromis mossambicus it could protect the fish from lipid peroxidation and from subsequent tissue damage. Lipid peroxidation was assessed in terms of malondialdehyde hydroperoxides and conjugated dienes Antioxidant enzymessuch as superoxide dismutase catalase glutathione peroxidase glutathione reductase and glutathiones -transferase and non-enzymic antioxidant substance glutathione in various tissues were also determined. Higher levels of lipid peroxidation were observed in the animal tissues on exposure to ethanol. However there was a decrease in ethanol accentuated lipid peroxidation on co-treatment with cyanobacterial feed. Experimental diets could effectively bring down the requirement of defensive antioxidant enzymes in various tissues indicating that cyanobacteria could act as an antioxidant by scavenging the free radicals produced during ethanol exposure. Lyngbya semiplena is a food grade organism highly nutritious and readily available from natural waters. These properties render it attractive for use in fish feed.
Additional Metadata
Item Type: | Article |
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AGROVOC Term: | Cyanobacteria |
AGROVOC Term: | Oreochromis |
AGROVOC Term: | Oreochromis mossambicus |
AGROVOC Term: | Aquatic animals |
AGROVOC Term: | Aquatic organisms |
AGROVOC Term: | Antioxidants |
AGROVOC Term: | Animal tissues |
AGROVOC Term: | Biochemistry |
AGROVOC Term: | Extracts |
AGROVOC Term: | Catalase |
Depositing User: | Mr. AFANDI ABDUL MALEK |
Last Modified: | 24 Apr 2025 00:53 |
URI: | http://webagris.upm.edu.my/id/eprint/7793 |
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