Effect of copper exposure on histamine concentrations in the marbled crayfish (Procambarus fallax forma virginalis)

Soedarini, Bernadeta (2012) Effect of copper exposure on histamine concentrations in the marbled crayfish (Procambarus fallax forma virginalis). Effect of copper exposure on histamine concentrations in the marbled crayfish (Procambarus fallax forma virginalis), 63 (2). pp. 139-147. ISSN 1570-7563

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Abstract

Crustaceans can store excess copper in the hepatopancreas, an organ playing a role in digestive activ- ity as well as in neurosecretory control. Here, we studied the effect of copper exposure on the level of histamine, an indicator of food spoilage in edible crustaceans. Histamine is also a neuromodulator in the intestinal nervous system of crustaceans, and a human allergen. Marbled crayfish (Procambarus fallax forma virginalis) were exposed to average measured values of 0.031 mg Cu/l and 0.38 mg Cu/l, respectively, for 14 days and then transferred to copper-free water for another 14 days. Concentrations of copper and histamine in the hepatopancreas and muscle were evaluated at different time points. His- tamine levels were significantly higher in hepatopancreas and muscle tissues at the highest exposure level, but only after transfer of the animals to copper-free water. The increased histamine concentra- tion following copper exposure may be explained by a (delayed) stress response, and by up-regulated histidine synthesis induced by copper, followed by decarboxylation to histamine.

Item Type:	Article
Divisions:	Faculty of Agricultural Technology
Depositing User:	Ms Bernadeta Soedarini
Date Deposited:	26 Jun 2024 23:29
Last Modified:	27 Jun 2024 04:06
URI:	http://repository.unika.ac.id/id/eprint/28485

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