Real-Time and In Situ Evaluation of Phycocyanin Concentration in Spirulina platensis Cultivation System by Using Portable Raman Spectroscopy

Figure 6

(a) The Raman spectra of five different concentrations of PCL in Spirulina; (b) the linear regression equation between the sum of the three peak (1272 cm⁻¹, 1337 cm⁻¹, and 1432 cm⁻¹) intensities and the PCL concentration; the linear regression equations between Raman peak intensity and PCL concentration at different Raman peaks: (c) 1272 cm⁻¹; (d) 1337 cm⁻¹; (e) 1432 cm⁻¹.

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(b)

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