生物工程下游技术绪论.ppt
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1、Downstream Processing of Bioengineering 生物工程下游技术生物工程下游技术杨志红691612Section OnePrefaceConsiderable effort and time is allocated to introducing cell culture and fermentation technology to undergraduate students in academia,generally through a range of courses in industrial biotechnology and related disc
2、iplines.Similarly,a large number of textbooks are available to describe the applications of these technologies in industry.However,there has been a general lack of appreciation of the significant developments in downstream processing and isolation technology,the need for which is largely driven by t
3、he stringent regulatory requirements for purity and quality of injectable biopharmaceuticals.This is particularly reflected by the general absence of coverage of this subject in many biotechnology and related courses in educational institutions.For a considerable while I have felt that there is incr
4、easing need for an introductory text to various aspects of downstream processing,particularly with respect to the needs of the biopharmaceutical and biotechnology industry.Although there are numerous texts that cover various aspects of protein purification techniques in isolation,there is a need for
5、 a work that covers the broad range of isolation technology in an industrial setting.It is anticipated that Downstream Processing of Proteins:Methods and Protocols will play a small part in filling this gap and thus prove a useful contribution to the field.It is also designed to encourage educationa
6、l strategists to broaden the coverage of these topics in industrial biotechnology courses by including accounts of this important and rapidly developing element of the industrial process.The hope is that this will result in graduates having a reasonable understanding of downstream processing princip
7、les and techniques,and thus be better prepared to fulfill the ever-increasing demand for competent isolation scientists in industries.This is,of course,achieved with the help of the dedicated contributing authors of Downstream Processing of Proteins:Methods and Protocols,without whose willingness to
8、 contribute and patience it would not have been possible.I would also like to thank the Humana Press and Prof.John Walker(the series editor)for their encouragement and prompt feedback.My thanks are also due to the Medeva Pharma Development management for providing me with the time and opportunity to
9、 fulfill this task,and without whose support it would have been impossible.Finally,I wish to thank my wife,children,and family members for allowing me to persevere with my editing activities in perhaps what should have been their time.Section Two菌种筛选菌种筛选摇瓶实验摇瓶实验发酵罐实验发酵罐实验Industrial Scale upTo transf
10、er the pilot scale results into a commercially feasible production setting.Fermentor sizes range from 100 L to 500,000 L,depending on products.在疾病治疗方面的应用在疾病治疗方面的应用生物制药抗生素基因治疗生物工程研究领域微生物培养动物细胞培养植物细胞培养天然资源生化材料海洋生物培养生物工程产业领域生物制药(抗生素,基因重组蛋白,氨基酸,疫苗,菌苗,天然药物,生化药物,血液制品,抗体,多糖,多肽)生物化工(乳酸,柠檬酸,苹果酸,丙烯酸,甘油,异丙醇,乙烯
11、)生物能源(甲醇,乙醇,生物柴油,生物汽油)生物材料(明胶,胶原蛋白,人造皮肤,人造骨,人造脏器)生物医学(诊断试剂,基因治疗,人及生物克隆)环境生物(环境治理,水污染,土壤污染,风沙治理)生物食品(醋,啤酒业,酿酒,乳制品,奶制品)生物资源(动物,植物,微生物)生物农业(基因食品,基因植物)生物工程的上中下游上游:菌种,基因工程,分子生物学,遗传学中游:微生物发酵工程,动植物细胞,海洋生物培养下游:生物分离工程 生物产品特点生物产品特点 产物浓度低的水溶液 原因:a.氧传递限制;b.细胞量;c.产物抑制 组分复杂a.大分子;b.小分子;c.可溶物;d.不可溶物;e.化学添加物 产物稳定性差a
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