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Table 1 Algebraic expression of stoichiometric coefficients for common nitrogen sources

From: Achieving pH control in microalgal cultures through fed-batch addition of stoichiometrically-balanced growth media

Nitrogen source Stoichiometric coefficients
α Ψ δ λ
N2 1 y 2 x 2 1 + x 4 z 2
NH4+ 1 y x 2 2 y 1 + x 4 y z 2
NO3 1 y x 2 1 + x 4 + 3 y 2 z 2
CO(NH2)2 1 y 2 y 2 x 2 y 1 + x 4 3 y 4 z 2
  1. The stoichiometric coefficients were determined algebraically from Equation 1 and are given in terms of biomass composition (x, y, z) for various nitrogen sources when extracellular metabolites are not considered.