Table 2.

Contents of saponin in various quinoa samples.

Bioactive Compound	Analysis Method	Samples	Contents	Reference
Total saponin	Spectrophotometry	Available sample (Hongcheon, Republic of Korea)	13.39 g/100 g	[70]
	Spectrophotometry	4 available quinoa varieties (Shanxi, China) and 3 available quinoa varieties (Peru)	7.51–12.12 mg OAE/g DW	[74]
	Spectrophotometry	28 quinoa varieties (Brigham Young University, Washington State University, and other sources)	3.81–27.1 mg/g	[69]
	Spectrophotometry	Commercially available sample (Moreno Valley, CA, USA)	97.03 ± 1.53 mg OAE/100 g	[75]
Oleanolic acid	GC-MS/MS	Available sample (Hongcheon, Republic of Korea)	0.301 mg/g	[70]
	GC-MS/MS	28 quinoa varieties (Brigham Young University, Washington State University, and other sources)	0.896 mg/g DW	[69]
Hederagenin	GC-MS/MS	Available sample (Hongcheon, Republic of Korea)	0.300 mg/g	[70]
	GC-MS/MS	28 quinoa varieties (Brigham Young University, Washington State University, and other sources)	1.841 mg/g DW	[69]
Phytolaccagenic acid	GC-MS/MS	Available sample (Hongcheon, Republic of Korea)	1.650 mg/g	[70]
	GC-MS/MS	28 quinoa varieties (Brigham Young University, Washington State University, and other sources)	7.818 mg/g DW	[69]
Sejanic acid	GC-MS/MS	28 quinoa varieties (Brigham Young University, Washington State University, and other sources)	0.459 mg/g DW	[69]