Maize Starch Ip/bp

Maize Starch IP/BP
Description: Fine white or yellowish powder, odorless and tasteless Identification tests Microscopic observation:Polyhedral
granules 2  to 23 micro m in size or rounded granule 25 to 32 micro m
in diameter. The central hilum consist of a distinct cavity or 2 to 5
rayed cleft. No concentric striations viewed. Between crossed Nicol
prism. A distinct black cross is seen intersecting at the  hilum2.2 : Mucilage observationA thin and cloudy mucilage is produced2.3 : Colour with IodineA dark blue colour is produced which disappears on heating and reappear on coolingMoisture:Not more than 15 %      Sulphated ash on ds: Not more than 0.6 %Acidity as ml of 0.1 N NaOH  for  5 g sample: Not more than 2mlSalmonella and E.coli: Absentds = Dry Substance