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Fig. 2 | Plant Methods

Fig. 2

From: An improved microscale method for extraction of phenolic acids from maize

Fig. 2

Box plot comparison of free phenolic acids extracted from maize seeds by the conventional and improved methods. a Determination of p-coumaric acid. b Determination of trans-ferulic acid. c Standard deviation for p-coumaric acid. d Standard deviation for ferulic acid. Horizontal line represents the median. Vertical line represents the maximum and minimum value. Box covers the 75th and 25th percentiles. [+Results are expressed as µg per g dry weight (µg/g dw). Significant differences between the methods were established by ANOVA (α = 0.05), ns no significance, * p < 0.05; ** p < 0.001; *** p < 0.001]

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