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Table 4 Summary purification of FOSs obtained from red onion extract using yeast treatment and the chromatographic method

From: Purification and characterization of crude fructooligosaccharides extracted from red onion (Allium cepa var. viviparum) by yeast treatment

I.) C. orthopsilosis FLA44.2

Sample

Total FOSs (g/L)

Purity

Recovery (%)

L*

a*

b*

Crude FOSs

88.3 Âħ 1.2

–

100.0

76.92 Âħ 0.18

10.78 Âħ 0.09

2.33 Âħ 0.05

Biological treatment

77.1 Âħ 0.3

98.2

87.3

77.46 Âħ 0.1

1.90 Âħ 0.06

9.88 Âħ 0.27

Chromatography

73.1 Âħ 5.4

100.0

82.8

95.61 Âħ 0.29

− 1.76 Âħ 0.03

3.76 Âħ 0.07

II.) P. melissophilus FLA48

Sample

Total FOSs (g/L)

Purity

Recovery (%)

L*

a*

b*

Diluted crude FOSs

49.5 Âħ 2.2

–

100.0

76.96 Âħ 0.21

11.83 Âħ 0.07

12.55 Âħ 0.08

Biological treatment

41.6 Âħ 0.5

96.7

84.0

81.16 Âħ 0.19

8.57 Âħ 0.07

4.87 Âħ 0.04

Chromatography

38.6 Âħ 2.1

100.0

78.0

82.05 Âħ 1.80

− 2.27 Âħ 0.06

12.12 Âħ 0.51

Refined sugar

–

 

–

85.81 Âħ 0.21

− 0.65 Âħ 0.02

2.73 Âħ 0.04

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Microbial Cell Factories

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