Enrichment of the Glycyrrhizic Acid from Licorice Roots (Glycyrrhiza glabra L.) by Isoelectric Focused Adsorptive Bubble Chromatography

Table 2

Correlation coefficient, enrichment addition, type, and volume of all the sample types on HPLC.

Number	Enrichment addition	Sample type	Sample volume (μL)	Distilled water volume (μL)	Correlation coefficient ()
()	β-Lactoglobulin	Start extract	25, 50, and 100	975, 950, and 900	0.9941
()		Extract foamed	300, 500, and 1000	700, 500, and 0	0.9978
()	Albumin bovine	Start extract	25, 50, and 100	975, 950, and 900	0.9943
()		Extract foamed	300, 500, and 1000	700, 500, and 0	0.9996
()	Starch (soluble)	Start extract	25, 50, and 100	975, 950, and 900	0.9949
()		Extract foamed	300, 500, and 1000	700, 500, and 0	0.9978
()	Without additive	Start extract	25, 50, and 100	975, 950, and 900	0.9951
()		Extract foamed	300, 500, and 1000	700, 500, and 0	0.9998