目的：建立稳定的干酪素法测定榛叶鞣质的方法。
Objective: To establish a stable method for determining the content of tannins in Heterophlla leaf by casein method.
方法：用比色法及紫外光解法测定了榛叶提取物对二甲基亚硝胺(N DMA)体外合成的阻断作用及对亚硝酸钠的清除作用。
Methods: Effect on NDMA and scavenging rate sodium nitrite was tested by colorimetric analysis and ultraviolet irradiation and decomposition.
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