Formaldehyde content of selected fish from the wet markets of Kathmandu Valley

Joshi R., . and Bhatta R., . and Paudel P. N., . and Kafle B. K., . Formaldehyde content of selected fish from the wet markets of Kathmandu Valley. pp. 1434-1437. ISSN 22317546

In Nepal the supply of fish inside the country does not meet the domestic need and is imported from neighboring countries mainly from India. Therefore fishes are stored in ice for a long time before they arrive to the local market in Nepal. Thus there is a high chance of treating the fish with formaldehyde solution (formalin) to preserve the shelf life. An attempt was taken to assess the fish quality by investigating the concentration of formaldehyde and pH in selected fish available in Kathmandu city. From three different local markets six species of fishes were collected and quantitative determination of formaldehyde was performed using UV-Vis spectrophotometer. The study indicates the mean range of formaldehyde from 0.3930.004 g g-1 to 2.3280.304 g g-1. Of the species analyzed Magur contained the highest concentration of formaldehyde (2.3280.304 g g-1). The pH was found to be in the range of 6.

Full text available from: Official URL: http://ifrj.upm.edu.my/22%20(04)%202015/(18).pdf

Abstract

In Nepal the supply of fish inside the country does not meet the domestic need and is imported from neighboring countries mainly from India. Therefore fishes are stored in ice for a long time before they arrive to the local market in Nepal. Thus there is a high chance of treating the fish with formaldehyde solution (formalin) to preserve the shelf life. An attempt was taken to assess the fish quality by investigating the concentration of formaldehyde and pH in selected fish available in Kathmandu city. From three different local markets six species of fishes were collected and quantitative determination of formaldehyde was performed using UV-Vis spectrophotometer. The study indicates the mean range of formaldehyde from 0.3930.004 g g-1 to 2.3280.304 g g-1. Of the species analyzed Magur contained the highest concentration of formaldehyde (2.3280.304 g g-1). The pH was found to be in the range of 6.

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Item Type:	Article
AGROVOC Term:	Formaldehyde
AGROVOC Term:	Formalin
AGROVOC Term:	Preservatives
AGROVOC Term:	Spectrophotometers
AGROVOC Term:	Seafoods
AGROVOC Term:	Purification
AGROVOC Term:	Stored products
AGROVOC Term:	Fish industry
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	24 Apr 2025 06:27
URI:	http://webagris.upm.edu.my/id/eprint/22137

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