Calculated Mean Content Values

Units Average Min Max Standard Deviation
mg/100 g FW 0.90 0.00 2.63 1.21
mol/100 g 4.54e-06 0.00 1.33e-05 6.10e-06

Values calculated by aggregating data from 4 different samples from 2 unique publications.

Aglycone Mean Content Values

Aglycone Units Average Min Max Standard Deviation
Syringic acid mg/100 g FW 0.90 0.00 2.63 1.21
mol/100 g 4.54e-06 0.00 1.33e-05 6.10e-06

Original Content Values Used to Produce Means

Mattila P., Kumpulainen J. (2002) Determination of free and total phenolic acids in plant-derived foods by HPLC with diode-array detection. Journal of Agricultural and Food Chemistry 50:3660-3667 PubMed (12059140)
Original Content Value Original Food Description Commercial Origin # of Samples Analyzed
0.00 mg/100 g FW Apple - Granny Smith - Unpeeled no 5
Ping L., Xu-Qing W., Huai-Zhou W., Yong-Ning W. (1993) High Performance Liquid Chromatographic Determination of Phenolic Acids in Fruits and Vegetables. Biomedical and Environmental Sciences 6:389-398 PubMed (20919719)
Original Content Value Original Food Description Commercial Origin # of Samples Analyzed
2.29 mg/100 g FW Apple 2 no 1
2.63 mg/100 g FW Apple 3 no 1
2.27 mg/100 g FW Apple 1 no 1