1'-hydroxytorulene + AH2 => 1'-hydroxy-gamma-carotene + A
1'-hydroxytorulene + ah2 => 1'-hydroxy-gamma-carotene + a
1'-hydroxytorulene + AH2 => 1'-hydroxy-gamma-carotene + A
1'-hydroxytorulene + ah2 => 1'-hydroxy-gamma-carotene + a