Nitrogen source

Stoichiometric coefficients


α

Ψ

δ

λ


N_{2}

1

$\frac{y}{2}$

$\frac{x}{2}$

$1+\frac{x}{4}\frac{z}{2}$

NH_{4}^{+}

1

y

$\frac{x}{2}2y$

$1+\frac{x}{4}y\frac{z}{2}$

NO_{3}^{−}

1

y

$\frac{x}{2}$

$1+\frac{x}{4}+\frac{3y}{2}\frac{z}{2}$

CO(NH_{2})_{2}

$1\frac{y}{2}$

$\frac{y}{2}$

$\frac{x}{2}y$

$1+\frac{x}{4}\frac{3y}{4}\frac{z}{2}$

 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.