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- W3003862173 abstract "This research was aimed at establishing the pilot-scale purification technology of lipopeptide from marine-derived Bacillus marinus. We studied lipopeptide surfactivity interferences on scale-up unit technologies including acid precipitation, methanol extraction, solvent precipitation, salting out, extraction, silica gel column chromatography and HZ806 macroporous absorption resin column chromatography. Then, the unit technologies were combined in a certain order, to remove the impurities gradually, and to gain purified lipopeptide finally, with high recovery rate throughout the whole process. The novel pilot-scale purification technology could effectively isolate and purify lipopeptide with 87.51% to 100% purity in hectograms from 1 ton of Bacillus marinus B-9987 fermentation broth with more than 81.73% recovery rate. The first practical hectogram production of highly purified lipopeptide derived from Bacillus marinus was achieved. With this new purification method, using complex media became possible in fermentation process to reduce the fermentation cost and scale-up the purification for lipopeptide production. For practicability and economy, foaming problem resulting from massive water evaporation was avoided in this technology.本次研究旨在建立经济可行的海洋芽孢杆菌源脂肽类化合物的中试规模纯化工艺。对包括酸化沉淀、甲醇浸提、溶剂沉淀、盐析、萃取、硅胶柱层析和HZ806 大孔树脂吸附工艺在内的可放大的成熟单元工艺进行反复试验，考察脂肽类化合物表面活性对单元工艺的影响。严格遵循以高收率为前提循序渐进逐步减少杂质的原则，组合上述单元工艺对目标产物进行提取和纯化，并最终获得高纯度脂肽样品。新工艺可从1 t 海洋芽孢杆菌Bacillus marinus B-9987 的发酵液中，以百克量级的规模制备87.51%–100%纯度的脂肽类化合物样品，收率>81.73%。本研究首次实现了高纯度的海洋芽孢杆菌源脂肽类化合物的百克量级制备；允许发酵生产阶段使用天然培养基，缓解了脂肽中游发酵生产和下游大规模纯化之间的矛盾；且各单元工艺规避了脂肽类化合物水溶液的乳化起泡和不经济的大体积水溶液蒸发浓缩。新工艺实用可行，经济合理。." @default.
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- W3003862173 date "2016-11-25" @default.
- W3003862173 modified "2023-09-23" @default.
- W3003862173 title "[Pilot-scale purification of lipopeptide from marine-derived Bacillus marinus]." @default.
- W3003862173 doi "https://doi.org/10.13345/j.cjb.160126" @default.
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