项        目                                    指 标

白度（425nm蓝光反射率）,%                     ≥75.0

细度(80目筛通过率),%                          ≥90.0

酸度(中和10g干基淀粉消耗0.1mol/L氢氧化钠溶液的毫升数),mL                   ≤20

蛋白质,%                                                                        ≤0.5

斑点,个/cm2                                                                     ≤8.0

水分,%                                                                          ≤8.0

灰分,%                                                                          ≤0.4

铅(以Pb计),mg/Kg                                                               ≤1.0

砷(以As计),mg/Kg                                                               ≤0.5

二氧化硫残留量,mg/Kg                                                          ≤30

黄曲酶毒素B1含量，μg/Kg                                                      ≤5

菌落总数,cfu/g                                                                 ≤1000

大肠菌群,MPN/100g                                                              ≤70

霉菌及酵母计数,cfu/g                                                          ≤200

马铃薯预糊化淀粉