Calculated Mean Content Values

Units Average Min Max Standard Deviation
mg/100 g FW 5.07e-03 0.00 0.01 3.83e-03
mol/100 g 1.39e-08 0.00 2.74e-08 1.05e-08

Values calculated by aggregating data from 6 different samples from 4 unique publications.

Aglycone Mean Content Values

Aglycone Units Average Min Max Standard Deviation
Secoisolariciresinol mg/100 g FW 5.07e-03 0.00 0.01 3.83e-03
mol/100 g 1.39e-08 0.00 2.74e-08 1.05e-08

Original Content Values Used to Produce Means

Milder I.E.J., Arts I.C.W., Van de Putte B., Venema D.P., Hollman P.C.H. (2005) Lignan contents of Dutch plant foods: a database including lariciresinol, pinoresinol, secoisolariciresinol and matairesinol. British Journal of Nutrition 93:393-402 PubMed (15877880)
Original Content Value Original Food Description Commercial Origin # of Samples Analyzed
4.00e-03 mg/100 g FW Pear (Pyrus communis L.) yes 3
Kuhnle G.G.C., Dell'Aquila C., Aspinall S.M., Runswick S.A., Joosen A.M.C.P., Mulligan A.A., Bingham S.A. (2009) Phytoestrogen content of fruits and vegetables commonly consumed in the UK based on LC-MS and 13C-labelled standards. Food Chemistry 116:542-54
Original Content Value Original Food Description Commercial Origin # of Samples Analyzed
0.01 mg/100 g FW Pear, Comice, with skin no 5
5.00e-03 mg/100 g FW Pear, Conference, with skin no 5
0.00 mg/100 g FW Pear, Williams, with skin no 5
Kuhnle G.G.C., Dell'Aquila C., Aspinall S.M., Low Y.-L., Kussmaul M., Bingham S.A. (2007) Extraction and quantification of phytoestrogens in foods using automated solid-phase extraction and LC/MS/MS. Analytical Chemistry 79:9234-9239 PubMed (17975893)
Original Content Value Original Food Description Commercial Origin # of Samples Analyzed
4.48e-03 mg/100 g FW Pear (conference), with skin, raw no 1
Valsta L.M., Kilkkinen A., Mazur W., Nurmi T., Lampi A.M., Ovaskainen M.L., Korhonen T., Adlercreutz H., Pietinen P. (2003) Phyto-oestrogen database of foods and average intake in Finland. British Journal of Nutrition 89:S31 PubMed (12725654)
Original Content Value Original Food Description Commercial Origin # of Samples Analyzed
9.90e-03 mg/100 g FW Pear no 1