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

Table 3 Growth parameters of Candida orthopsilosis FLA44.2 and Priceomyces melissophilus FLA48 during fermentation of crude FOSs with and without dilution in both shake flask and fermenter scales

Scale	Yeast strains	Dilution	μ (h⁻¹)	% Purity					% Recovery
Scale	Yeast strains	Dilution	μ (h⁻¹)	24	36	48	72	96	24	36	48	72	96
Flask	C. orthopsilosis FLA44.2	Two-fold	0.23	96.6	97.7	98.4	98.4	98.5	96.4	96.7	93.6	92.9	93.0
	C. orthopsilosis FLA44.2	No	0.22	93.7	98.0	98.3	99.1	99.2	97.8	96.4	95.1	93.9	93.8
	P. melissophilus FLA48	Two-fold	0.13	27.3	58.8	77.9	95.2	96.9	93.2	94.4	93.0	92.2	89.8
	P. melissophilus FLA48	No	0.09	3.0	10.5	27.4	72.0	76.3	96.2	94.1	91.6	92.1	91.2
Fermenter	C. orthopsilosis FLA44.2	No	0.21	91.6	96.4	98.2	98.2	98.2	96.3	93.2	92.3	87.8	89.3
Fermenter	P. melissophilus FLA48	Two-fold	0.12	9.0	65.1	79.0	96.7	97.1	88.7	87.3	87.7	85.6	85.0

Initial concentrations of the original FOSs and two-fold diluted FOSs were 88.3 ± 1.2 g/L and 47.9 ± 1.5 g/L, respectively

ISSN: 1475-2859