... starch Moisture: 16%max. Ash Content: <0. 25% Acidity: 6 Re:Sweet potato starch white 100% sweet potato starch ... as pure white, highly viscosity and purity, and lowly acidity etc.. It is mainly material for proccessing vermicelli and ... the rate )≥ 99.54 Spot quantity : A /m2 =1.005, Acidity,% : ≤ 15.006, Ash,%: ≤ 0.257, Protein,% : ≤ 0.558, Fat,% ... , ISO 9001:2000, QS-9000. sweet potato starch food grade