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. 2013 Oct 1;13:243. doi: 10.1186/1472-6882-13-243

Table 1.

Extraction yields and content of phenolic compounds in the crude and fractionated extracts of Alpinia pahangensis

Extract/fractions Weight of extracts (g) Total phenolic content (mg/g)
Crude methanol
 31.19
 0.75 ± 0.07c
Hexane
 1.87
 0.25 ± 0.03a
Ethyl acetate
 2.70
 1.09 ± 0.11d
Water 24.43 0.61 ± 0.02b

Values expressed are mean ± SD of triplicate measurements. Means with different letters (a-d) in the same column are significantly different (p < 0.05). mg/g: mg of gallic acid equivalents/g of extract or fractions.