Table 1.

Metabolic flux distributions of glucose after addition of Fe³⁺, Zn²⁺ and NaNO₃ in KWSS (%)

	Glucose
	Pyruvate (EMP)
	Tartaric acid	Propionic acid	Lactic acid	Acetic acid	Ethanol and other	Total	Pentose (HMP)
Contrast	1.79	2.45	52.48	3.05	0.82	60.60	36.70
Zn2+	2.35	3.53	44.42	2.72	1.08	54.10	45.00
Fe3+	0.82	1.54	70.36	0.76	0.75	74.30	25.00
NaNO3	0.66	3.65	63.37	1.40	1.02	70.10	28.90