Table 5. Comparison of phytochemical contents of three types of kombucha

Contents¹⁾	Samples²⁾
Contents¹⁾	CT	ST	ST+GS
Ginsenosides (mg/100 mL)
Ginsenoside Ro	ND³⁾	ND	1.35±0.04^a
Ginsenoside Rg2	ND	ND	2.40±0.20^a
Ginsenoside Rh1	ND	ND	4.50±0.00^a
Ginsenoside F2	ND	ND	9.00±0.10^a
Ginsenoside Rg3	ND	ND	4.60±0.00^a
Compound K (CK)	ND	ND	7.80±0.10^a
Total	0	0	29.65±0.44^a
Phenolic acids (μg/mL)
Gallic acid	8.13±0.24^c	9.07±0.24^b	19.47±0.49^a
Chlorogenic acid	11.30±0.32^b	10.05±0.30^c	19.82±0.55^a
p-Hydroxybenzoic acid	204.90±6.35^c	239.86±7.68^b	265.61±7.17^a
Vanillic acid	12.43±0.34^c	19.39±0.54^b	22.43±0.76^a
p-Coumaric acid	5.76±0.17^c	8.26±0.22^b	18.41±0.52^a
Vertaric acid	15.56±0.47^a	7.95±0.21^c	8.88±0.24^b
Benzoic acid	21.00±0.67^c	43.74±1.27^b	78.18±2.03^a
Total	279.08±0.8.56^c	338.32±10.46^b	432.80±11.76^a
Flavonols (μg/mL)
Epigallocatechin	76.37±2.06^b	51.76±1.71^c	83.37±2.58^a
Catechin	2,396.29±71.89^c	2,849.81±74.10^b	3,307.53±89.30^a
Epicatechin	26.17±0.84^b	7.21±0.21^c	41.62±1.08^a
Epigallocatechin gallate	165.56±4.64^a	106.17±3.19^c	149.08±4.17^b
Rutin	149.81±4.04^c	220.98±6.19^b	349.69±11.89^a
Quercetin	172.80±5.18^c	290.84±8.43^b	396.86±11.91^a
Naringin	270.63±8.12^c	443.18±11.52^b	831.32±22.45^a
Total	3,257.63±96.77^c	3,969.95±105.35^b	5,159.47±143.38^a

Values are mean±SD (n=3). Means with different superscript letters within each row are significantly different between samples for the same index (p<0.05) by Duncan’s multiple range test.
CT, control kombucha; ST, strawberry kombucha; ST+GS, strawberry kombucha containing ginseng sprout concentrate.
ND, not detected.