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Microwave mineralization of meat products of kjeldahl nitrogen determination



Microwave mineralization of meat products of kjeldahl nitrogen determination



Analusis 19(2): 64-66



Microwave digestion was used to mineralize meat in less than 15 minutes. All tests were carried out in a Prolabo Maxidigest microwave oven. A Maxidigest 3-step program was optimized using a factorial design which required a maximum of 8 determinations. The best mineralization of corned beef, the reference sample, required a total of 11 minutes, while tryptophan mineralization required 19 minutes. The optimized programs for corned beef (11 min) and tryptophan (19 min) were then used to mineralize several other meat samples. The results were compared to those obtained by the one-hour-long conventional method using Cu as catalyst.

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