R. Mongeau et R. Brassard, ENZYMATIC-GRAVIMETRIC DETERMINATION IN FOODS OF DIETARY FIBER AS SUM OF INSOLUBLE AND SOLUBLE FIBER FRACTIONS - SUMMARY OF COLLABORATIVE STUDY, Journal of AOAC International, 76(4), 1993, pp. 923-925
A collaborative study was conducted on an enzymatic-gravimetric method
for determination of total dietary fiber in foods, in which soluble f
iber and insoluble fiber are determined separately. Ten collaborators
analyzed blind duplicate test samples from 5 food products: turnip, wh
eat bran, beans canned with tomato sauce, rice, and whole wheat bread.
Repeatability and reproducibility relative standard deviations ranged
from 1.48 to 14.73% and from 4.13 to 17.94%, respectively. The method
was adopted first action by AOAC International.