9,394 Winged Bean Seed 4004 Copper Cu (mg/100g) DW 4.90 Analytical value perchloric and nitric acids using Atomic Absorption Spectrophotometer Seeds dried to a constant weight at 60°C, ground in a Wiley Laboratory Mill to pass through a 60 - mesh sieve. The following determinations based on the flour samples 3 false Winged bean 'var. SLS 6'. Value at stage maturity 3 (30 days after flowering). Value is calculated based on flour samples 9,271