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良好的分离纯化技术是开发纳豆激酶保健品的关键。
The proper technology in purification is a key in development nattokinase production.
方法：采用组织分离法和菌丝尖端纯化技术分离纯化菌种；
Methods: The tissue isolation and the hyphaend-purification skill were used to isolate and to purify the spawn.
亲和层析是基于生物分子间特异性的亲和作用而建立的分离纯化技术。
Affinicty chromatography is a separating and purifying technique based on the specific affinity between biomolecules.
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