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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
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