Dear Chirag,
as the addition of L-cysteine is a part of a mitigation risk plan, first of all you should identify the minimum quantity in which this is effective.
As this reagent will react with the nitrites in the formulation, its quantity will decreased during time, so you should record it through stability in order to ensure that its quantity will be always over the minimum level you have identify.
So, i beleive that you should add this in your specifications.
In addition and independently of nitrosamine cases, the antioxidants are included in the specs when they are present in the formulation.
Christos
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