第一范文网 - 专业文章范例文档资料分享平台

重组E.coli生产类人胶原蛋白发酵调控策略与500L中试规模放大方法优化(8)

来源:用户分享 时间:2021-06-02 本文由花香满园 分享 下载这篇文档 手机版
说明:文章内容仅供预览,部分内容可能不全,需要完整文档或者需要复制内容,请下载word后使用。下载word有问题请添加微信号:xxxxxx或QQ:xxxxxx 处理(尽可能给您提供完整文档),感谢您的支持与谅解。

英文摘要

mediaand/oremployedaglucosestarvationandthustheeffectsofacetateatdifferentcell

ongrowthphaseweredetermined.Experimentalresultsshowthatobviousacetateinhibition

cellgrowthoccurredinthephasesofbatchculturewhileitsinhibitoryeffectonHLCexpressionoccurredonlyintheexpressionphase.

Thedevelopmentofasuitableinoculumisimportanttothefermentationprocess.Tooptimizetheinoculumpreparationprocess,thethirdinoculumtransferstageandmediumweredetermined.The

WasresultsshowedthatHLCproductivityWashighestwhentheⅡlirdatlatelyexponentiMinoculumtransferredstage;inaddition,whentheglucose

concentrationWas20g/L,thefollowingfermentationtimeWasshortestandthefinalHLCconcentration

0.518washighest,andthustheHLCaverageproductivitywashighest(achievedg/L/h).

aAcetatehad

SOastrongnegativeinfluenceontheHLCproductionaccordingtothiswork,tocontrolfeed-back

acetatecontrolledmethodthattheprobingfeedingstrategyWasdevelopedWastheproduction.Themethod

onemployedtomaintaindissolvedoxygenconcentrationatthesamelevel

finalbothlaboratoryscaleandpilotscalefermentations.TheonDCWof69.1g/LandHLCconcentrationof13.1g/Lwereobtained

resultsarethelaboratoryfinalscale.andthe

51.7g/Lsimilartothatoptimizedinthepreviousof9.6g/Lwereobtainedstudy.TheonDCWofandHLCconcentrationthepilot-scaleuponoptimizationofinductiontiming.

ThereasonforthedecreaseintheHLCproductiononthepilotscalemaybethelower

volumetricmasstransferoxygentransferrateforthepilot scale

coefficientkLa

kLaonfermentor.Therefore,thedifferentscalefermentorswasdeterminedandthecorrelationsbetweentherateandoperationparameters(aeration,stirrer

oxygentransferandinitialmediumvolume)werecouldbedeveloped.Andthusthecapacitiesfordifferentfermentors

compared.ThecorrelationsforkLaonthelab-scalefermentoriS,

(kLa)L=0.OlllQ0.3185N1’5”1VLn4舳3

AndthecorrelationsforkLaonthepilot-scalefermentoris,(kLa)P=0.2690Q0.29S3N他727VLm404

搜索“diyifanwen.net”或“第一范文网”即可找到本站免费阅读全部范文。收藏本站方便下次阅读,第一范文网,提供最新人文社科重组E.coli生产类人胶原蛋白发酵调控策略与500L中试规模放大方法优化(8)全文阅读和word下载服务。

重组E.coli生产类人胶原蛋白发酵调控策略与500L中试规模放大方法优化(8).doc 将本文的Word文档下载到电脑,方便复制、编辑、收藏和打印
本文链接:https://www.diyifanwen.net/wenku/1196898.html(转载请注明文章来源)
热门推荐
Copyright © 2018-2022 第一范文网 版权所有 免责声明 | 联系我们
声明 :本网站尊重并保护知识产权,根据《信息网络传播权保护条例》,如果我们转载的作品侵犯了您的权利,请在一个月内通知我们,我们会及时删除。
客服QQ:xxxxxx 邮箱:xxxxxx@qq.com
渝ICP备2023013149号
Top