Nutritional Composition, -Glucosidase Inhibitory and Antioxidant Activities of Ophiopogon japonicus Tubers

Table 5

Extraction yield, total phenolic and flavonoid contents of O. japonicus tubers extracts.

Sample	Extraction yield; (w/w, %)	Total phenolic content; (mg GAE/g)	Total flavonoid content; (mg RE/g)
ME	26.4 ± 1.4	6.1 ± 0.5	4.1 ± 1.0
CME	3.9 ± 0.2	19.6 ± 1.6	16.3 ± 1.3
nBF	2.6 ± 0.3	42.5 ± 1.7	26.7 ± 1.6
OJP	19.4 ± 1.1	ND	ND

Values are expressed as mean ± SD of three determinations.
Means within a column with different letters (a~c) indicate significant differences at .
ME: methanol extract; CME: chloroform/methanol extract; nBF: n-butanol fraction; OJP: crude polysaccharides; ND: not detected.