▁white ▁fl our ▁usually ▁has ▁a ▁protein ▁content ▁of ▁ 1 2 - 1 3 %. ▁This ▁cont ributes ▁to ▁the ▁heart y ▁consist ency ▁of ▁Canadian ▁bread . ▁ ▁See ▁also ▁ ▁Sand wich ▁bread ▁ ▁References ▁Notes ▁ ▁Category : B read s ▁Category : Can ad ian ▁cu is ine <0x0A> </s> ▁P til ost icha ▁cy an op la ca ▁is ▁a ▁moth ▁in ▁the ▁family ▁Sch re cken ste ini idae . ▁It ▁was ▁described ▁by ▁Mey rick ▁in ▁ 1 9 1 0 . ▁ ▁References ▁ ▁Category : Sch re cken stein io idea ▁Category : M oth s ▁described ▁in ▁ 1 9 1 0 <0x0A> </s> ▁A ▁zero - supp ress ed ▁decision ▁diagram ▁( Z SD D ▁or ▁Z DD ) ▁is ▁a ▁type ▁of ▁binary ▁decision ▁diagram ▁( B DD ) ▁based ▁on ▁a ▁new ▁reduction ▁rule , ▁de vised ▁by ▁Shin - ichi ▁Min ato ▁in ▁ 1 9 9 3 . ▁This ▁data ▁structure ▁brings ▁unique ▁and ▁compact ▁representation ▁of ▁sets , ▁often ▁appearing ▁in ▁combin atorial ▁problems . ▁With ▁a ▁modified ▁reduction ▁rule ▁in ▁node ▁elim ination , ▁a ▁Z DD ▁distingu ishes ▁itself ▁from ▁a ▁B DD ▁by ▁ens uring ▁the ▁can onic ity ▁of ▁the ▁representation ▁of ▁the ▁sets . ▁Can on ical ▁means ▁that , ▁under ▁certain ▁conditions , ▁an ▁object ▁has ▁only ▁one ▁representation ▁of ▁this ▁kind . ▁Where as ▁the ▁node ▁in ▁B DD s ▁is ▁removed ▁from ▁the ▁decision ▁tree ▁if ▁both ▁its