ISSN:
1745-4573
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Process Engineering, Biotechnology, Nutrition Technology
Notes:
The absorbance of the 2-thiobarbituric acid-malonaldehyde (TBA-MA) complex at 532 nm for aqueous model systems and cured meats were measured. Addition of sulfanilamide played a beneficial role in evaluating the oxidative state of cured meats, prepared with the addition of ≧ 100 ppm NaNO2, in that it prevented the underestimation of the TBA values. However, in the absence of nitrite, sulfanilamide may interact with malonaldehyde to produce a 1-amino-3-iminopropene derivative. Fluorescence spectroscopic studies showed an excitation maximum at 395 nm and an emission maximum at 460 nm for the adduct of malonaldehyde and sulfanilamide. Therefore, the TBA test for the evaluation of the oxidative state of cured meats may only be used when the content of nitrite in the cure or final product is known.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1745-4573.1991.tb00436.x
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