The protein content (PC, %N 5.7, corrected for dried matter)
was assayed using the micro-Kjeldahl method, according to AACC
approved method 46-13.01 (AACC International, 2000).
The gluten index (GluI, %) was determined using an automatic
gluten washing apparatus (Glutomatic) followed by centrifugation,
as in AACC approved method 38-12.02 (AACC, 2000).