Fig. 1

EMSC-preprocessed ATR-FTIR spectra of Mucor circinelloides fungus grown under different cultivation conditions: absence of inorganic phosphorus (sample Pi0) and presence of inorganic phosphorus (sample Pi1 or control sample—CS). The following spectral regions are colored: I and II—lipids (3050–2800 cm⁻¹ and 1800–1700 cm⁻¹ respectively), III—proteins (1700–1500 cm⁻¹), IV—mixed region (1500–1200 cm⁻¹), V—polysaccharides + polyphosphates (1200–700 cm⁻¹)