Calculated Mean Content Values

Units Average Min Max Standard Deviation
mg/100 ml 0.63 0.00 1.21 0.61
mol/100 ml 2.08e-06 0.00 4.00e-06 2.01e-06

Values calculated by aggregating data from 3 different samples from 2 unique publications.

Aglycone Mean Content Values

Aglycone Units Average Min Max Standard Deviation
Quercetin mg/100 ml 0.63 0.00 1.21 0.61
mol/100 ml 2.08e-06 0.00 4.00e-06 2.01e-06

Original Content Values Used to Produce Means

Belajova E., Suhaj M. (2004) Determination of phenolic constituents in citrus juices: Method of high performance liquid chromatography. Food Chemistry 86:339-343
Original Content Value Original Food Description Commercial Origin # of Samples Analyzed
0.68 mg/100 ml Fresh-pressed grapefruit no 1
1.21 mg/100 ml 100% grapefruit yes 1
Ross S.A., Ziska D.S., Zhao K., ElSohly M.A. (2000) Variance of common flavonoids by brand of grapefruit juice. Fitoterapia 71:154-161 PubMed (10727812)
Original Content Value Original Food Description Commercial Origin # of Samples Analyzed
0.00 mg/100 ml Commercial grapefruit juice 9 - Pure juice yes 1