Rl. Boeri et al., FORMALDEHYDE INSTEAD OF DIMETHYLAMINE DETERMINATION AS A MEASURE OF TOTAL FORMALDEHYDE FORMED IN FROZEN ARGENTINE HAKE (MERLUCCIUS-HUBBSI), International journal of food science & technology, 28(3), 1993, pp. 289-292
The relationship between dimethylamine (DMA) and formaldehyde (FA) con
tents of fillet and minced flesh of hake (Merluccius hubbsi) during fr
ozen storage was analysed. The relation is clearly linear and independ
ent of the type of product and storage temperature. As the intercept w
as nearly zero, a constant relation between FA and DMA was established
, with both similar as keeping time predictors. Measuring FA content b
y the chromotropic acid method was equivalent to, but easier than meas
uring DMA content.