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Table 1 Pigment variation in the extractive cultivation with different concentrations of nonionic surfactant aqueous solutions

From: Saturation effect and transmembrane conversion of Monascus pigment in nonionic surfactant aqueous solution

Triton X-100 concentration (g/L) Fermentation broth extracted Mature cells extracted
O/Y(Ex)a O/Y(In)b O/Y(Ex)a O/Y(In)b
0 2.09 ± 0.06 1.71 ± 0.09
5 0.82 ± 0.01a 2.03 ± 0.19 1.01 ± 0.07a 1.71 ± 0.15
40 1.58 ± 0.03b 2.05 ± 0.03 1.47 ± 0.01b 1.73 ± 0.07
160 1.78 ± 0.02c 1.97 ± 0.10 2.72 ± 0.05c 1.74 ± 0.14
  1. The data are expressed as the mean values ± standard deviation (n = 3). Mean values in a column with different lowercase letters are significantly different (ANOVA, Tukey’s test; p < 0.05)
  2. aRate of extracellular two orange pigments to two yellow pigments
  3. bRate of intracellular two orange pigments to two yellow pigments