Price K.R., Casuscelli F., Colquhoun I.J., Rhodes M.J.C. (1998) Composition and content of flavonol glycosides in broccoli florets (Brassica olearacea) and their fate during cooking. Journal of the Science of Food and Agriculture 77:468-472

Abbreviation: PRICE 1998_03

Food Composition

This publication was used to obtain 5 food polyphenol content values.

Original Content Value Original Food Description Commercial Origin Number of Samples Analyzed
6.50 mg/100 g FW Broccoli florets - Marathon - Raw no 1
16.60 mg/100 g FW Broccoli florets - Marathon - Raw no 1
1.80 mg/100 g FW Broccoli florets - Marathon - Raw no 1
1.40 mg/100 g FW Broccoli florets - Marathon - Raw no 1
1.50 mg/100 g FW Broccoli florets - Marathon - Raw no 1

Food Processing

This publication was used to obtain 5 retention factor values.

Retention Factor Food Before Processing Food After Processing Content Before Processing Content After Processing Units
0.30 Broccoli florets - Marathon - Raw Broccoli florets - Marathon - Boiled (until soft for 15 min) 6.5 1.8 mg/100 g fresh weight
0.15 Broccoli florets - Marathon - Raw Broccoli florets - Marathon - Boiled (until soft for 15 min) 16.6 2.3 mg/100 g fresh weight
0.23 Broccoli florets - Marathon - Raw Broccoli florets - Marathon - Boiled (until soft for 15 min) 1.4 0.3 mg/100 g fresh weight
0.22 Broccoli florets - Marathon - Raw Broccoli florets - Marathon - Boiled (until soft for 15 min) 1.5 0.3 mg/100 g fresh weight
0.18 Broccoli florets - Marathon - Raw Broccoli florets - Marathon - Boiled (until soft for 15 min) 1.8 0.3 mg/100 g fresh weight