Musty/earthy off-flavor in aquatic animals: impact, causes, and solutions

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IDL-56118.pdf (565.03 KB)

Date

2014-11

Authors

Journal Title

Journal ISSN

Volume Title

Publisher

Khon Kaen University, Khon Kaen, Thailand

Abstract

Musty/earthy off-flavor in aquatic animals has been reported in aquatic organism worldwide. Although there is no negative effect on human health, it causes an unacceptable for consumer consumption. The purpose of this article is to review some of the available literature relating to musty/earthy off-flavor in aquatic animals. Geosmin (GSM) and 2-methylisoborneol (MIB) are two major off-flavor compounds. These compounds are caused by metabolites produced by blue-green algae including Anabaena sp., Oscillatoria sp., Lyngbya sp., Symploca sp., Phormidium sp., and Aphanizomenon sp. and some bacteria such as Streptomyces. Fish with high fat content or raised in earthen ponds with enriched algae and bacteria mentioned earlier increase in risk of off-flavor problem. The influences of temperature, season, and climate change had been also discussed. Finally, the various practical methods for undesirable flavor were described. This information will be beneficial for fish farmers to control an off-flavor problem.

Description

Keywords

OFF-FLAVOR, AQUATIC ANIMAL, BLUE-GREEN ALGAE, CAUSE, SOLUTIONS

Citation

URI

http://hdl.handle.net/10625/56118

DOI

Collections

IDRC Research Results / Résultats de recherches du CRDI
2010-2019 / Années 2010-2019