活力：≥200 U/g
活力定义：1 U corresponds to the amount of enzyme which changes the absorbance at 310 nm by 1.0 per minute at pH 4.7 and 30°C (tannic acid as substrate, final volume 3 ml)
Total impurities：25 mM potassium phosphate；250 mM NaCl；50% glycerol
性状：白色粉末，由曲霉属等微生物发酵生产
用途：生化研究。可水解没食子酸单宁中的酯键和缩酚羧键，生成没食子酸和葡萄糖
| 单宁酶 | annase from Aspergillus ficuum BR | 1克 | ¥700 |
