They were further purified with DE-52 cellulose ion exchange chromatography and Dextran Blue-Sepharose 4B affinity chromatography.
该凝集素经乳糖尿素液抽提和离心分离后，再用DE-52纤维素柱和蓝色葡聚糖柱进一步纯化。
The company is principally engaged in production, deep processing, marketing and R & D of new products of high cellulose nata de coco.
企业主要从事高纤椰果的生产、深加工、销售及其新产品研究开发。
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