...Hamza Usman; Muhammad Hafiz Abu Bakar; Amir Syahir Hamzah; Abu bakar Salleh Purpose – This paper aims to estimate the level of histamine in fish and fish products, as it is very important because of their implication in fish poisoning in humans; hence, ascertaining histamine levels...

... developed for histamine measurement. Design/methodology/approach In this analysis, degradation of histamine through enzymatic reaction produces signal that is monitored using a simple detector equipped with “astable” multivibrator operation circuit (in capacitor‐resistor circuit). Findings Different...