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Updated: Dec 20, 2025
A Fish-feeding Laboratory Bioassay to Assess the Antipredatory Activity of Secondary Metabolites from the Tissues of Marine Organisms
Published on: January 11, 2015
Semi-quantitative evaluation of seafood spoilage using filter-paper strips loaded with an aggregation-induced
Yonghua Jiang1, Zhaowei Zhong2, Weixin Ou3
1Fisheries College, Jimei University, Xiamen, Fujian 361021, China; College of Science and Engineering, Flinders University, South Australia 5042, Australia; Medical Device Research Institute, Flinders University, South Australia 5042, Australia.
Abstract:
The method for seafood spoilage detection is far from satisfactory for ensuring food safety and security. Here, we develop a simple and cost-effective method using the filter papers loaded with a dihydroquinoxaline derivative (H + DQ2) to monitor salmon spoilage. The correlation between the content of solid biogenic amines and the photoluminescence intensity (PL) of H + DQ2 induced by amine vapours showed that the PL intensities of H + DQ2 increased with the increase of spoilage, which indicates that it is feasible to evaluate the spoilage degree of salmon based on the PL intensity of H + DQ2-loaded filter papers by semi-quantitation. The optimum detection condition is 75, 50 and 50 g of salmon, 75, 25 and 10 µM H + DQ2 at 0, 4 and 25 °C, respectively. This study provides a quick and simple way for testing amine vapour from fish and provides baseline information for developing an easy-to-use on-site method to evaluate seafood quality for customers.
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