虽然用丹宁酶及UF综合处理茶叶提取物，原则上可以得到高质量的茶叶提取物。
Although in principle a good quality of tea extract is obtained by the combination of treating tea extract with tannase followed by an UF treatment.
随后，用丹宁酶处理过的茶叶提取物要经过超过滤处理。
The tea extract which has been treated with tannase is subsequently subjected to an ultra-filtration treatment.
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