Shaken flasks by resonant acoustic mixing in the biosynthesis of alginate by <fc xmlns='http://www.wiley.com/namespaces/wiley'> <fi>Azotobacter vinelandii</fi> </fc> <fi xmlns='http://www.wiley.com/namespaces/wiley'>Azotobacter vinelandii</fi>Azotobacter vinelandii with non‐Newtonian rheological characteristics

Reynoso‐Cereceda Greta I; Córdova‐Aguilar María S; Valdez‐Cruz Norma A; Trujillo‐Roldán Mauricio A

摘要

Abstract <section xml:id="jctb5475-sec-0001" numbered="no"> <title type="main">BACKGROUND > Orbitally shaken flasks in polysaccharide‐producing bacterial cultures usually present oxygen limitations because of non‐Newtonian rheological characteristics of the resulting culture broth and bacterial respiration. Here, we present the production of alginate by <fc> <fi>Azotobacter vinelandii</fi> </fc> using a novel alternative mixing technology (resonant acoustic mixing, RAM) to increase oxygen transfer. </section> <section xml:id="jctb5475-sec-0002" numbered="no"> <title type="main">RESULTS > No significant differences were observed in biomass growth (3.43 ± 0.61 g L ‐1 ) with RAM frequencies between 5 and 20 <fi>g</fi> , but higher specific growth and sucrose consumption rates were found at higher frequencies (15 and 20 <fi>g</fi> ). The highest alginate production (9.13 ± 0.63 g L ‐1 ) was obtained in 20 <fi>g</fi> cultures, in which no oxygen limitation was detected, whereas intracellular reserve polymer poly‐β‐hydroxybutyrate (PHB) production was favored at low shaking frequencies (5 and 10 <fi>g</fi> ), in which dissolved oxygen tension was zero for a long culture time. Cultures behave pseudoplastically, with an apparent viscosity that increases until the end of the exponential phase, and the alginate monomer ratio was approximately 1.0 in all cultures. </section> <section xml:id="jctb5475-sec-0003" numbered="no"> <title type="main">CONCLUSION > RAM can maintain elevate </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> <div class="translation abstracttxt"> <span class="zhankaihshouqi fivelineshidden" id="abstract"> <span>机译：</span><Abstract XMLNS =“http://www.wiley.com/namespaces/wiley”type =“main”xml：lang =“en”> <title type =“main”>抽象</ title> <section XML：ID =“JCTB5475-SEC-0001”编号=“否”> <标题类型=“main”>背景</标题> >在多糖的产生细菌培养中的甘露出摇瓶通常由于非牛顿流变特征而产生氧气限制由此产生的培养肉汤和细菌呼吸。在这里，我们介绍了使用新颖的替代混合技术（共振声学混合，RAM）来增加藻酸盐的藻酸盐，以增加氧气转移。 </ p> </ section> <section XML：ID =“JCTB5475-SEC-0002”编号=“否”> <标题类型=“main”>结果</ title> >在生物质中没有观察到显着差异增长（3.43±0.61g l -1 </ sup>），RAM频率在5到20 <fi> g之间，但在较高频率下发现了更高的特定生长和蔗糖消耗率（15和20 <fi> g </ fi>）。在20 <fi> g / fi>培养物中获得最高藻酸盐的生产（9.13±0.63g l -1 / sup>），其中检测到不检测到氧气限制，而细胞内储备聚合物聚乙烯在低振荡频率（5和10 <（10 <））下，羟基丁酸盐（PHB）产生，其中溶解的氧张力为零培养时间为零。培养物在伪装上表现出对指数相结束的表观粘度，并且藻酸盐单体比在所有培养物中约为1.0。 </ p> </ section> <section XML：ID =“JCTB5475-SEC-0003”编号=“否”> <标题类型=“main”>结论</ title> > RAM可以保持提升 </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> </div> <div class="record"> <h2 class="all_title" id="enpatent33" >著录项</h2> <ul> <li> <span class="lefttit">来源</span> <div style="width: 86%;vertical-align: text-top;display: inline-block;"> <a href='/journal-foreign-33908/'>《Journal of Chemical Technology & Biotechnology》</a> <b style="margin: 0 2px;">|</b><span>2018年第4期</span><b style="margin: 0 2px;">|</b><span>共10页</span> </div> </li> <li> <div class="author"> <span class="lefttit">作者</span> <p id="fAuthorthree" class="threelineshidden zhankaihshouqi"> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Reynoso‐Cereceda Greta I&option=202" target="_blank" rel="nofollow">Reynoso‐Cereceda Greta I;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Córdova‐Aguilar María S&option=202" target="_blank" rel="nofollow">Córdova‐Aguilar María S;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Valdez‐Cruz Norma A&option=202" target="_blank" rel="nofollow">Valdez‐Cruz Norma A;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Trujillo‐Roldán Mauricio A&option=202" target="_blank" rel="nofollow">Trujillo‐Roldán Mauricio A;</a> </p> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zkzz" style="display: none;">展开▼</span> </div> </li> <li> <div style="display: flex;"> <span class="lefttit">作者单位</span> <div style="position: relative;margin-left: 3px;max-width: 639px;"> <div class="threelineshidden zhankaihshouqi" id="fOrgthree"> <p>Programa de Investigación de Producción de Biomoléculas Unidad de Bioprocesos Departamento de Biología Molecular y BiotecnologíaUniversidad Nacional Autónoma de MéxicoMéxico;</p> <p>Centro de Ciencias Aplicadas y Desarrollo TecnológicoUniversidad Nacional Autónoma de MéxicoMéxico;</p> <p>Programa de Investigación de Producción de Biomoléculas Unidad de Bioprocesos Departamento de Biología Molecular y BiotecnologíaUniversidad Nacional Autónoma de MéxicoMéxico;</p> <p>Programa de Investigación de Producción de Biomoléculas Unidad de Bioprocesos Departamento de Biología Molecular y BiotecnologíaUniversidad Nacional Autónoma de MéxicoMéxico;</p> </div> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zhdw" style="display: none;">展开▼</span> </div> </div> </li> <li > <span class="lefttit">收录信息</span> <span style="width: 86%;vertical-align: text-top;display: inline-block;"></span> </li> <li> <span class="lefttit">原文格式</span> <span>PDF</span> </li> <li> <span class="lefttit">正文语种</span> <span>eng</span> </li> <li> <span class="lefttit">中图分类</span> <span><a href="https://www.zhangqiaokeyan.com/clc/180.html" title="生物工程学（生物技术）">生物工程学（生物技术）;</a><a href="https://www.zhangqiaokeyan.com/clc/20827.html" title="生物化学过程">生物化学过程;</a></span> </li> <li class="antistop"> <span class="lefttit">关键词</span> <p style="width: 86%;vertical-align: text-top;"> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=shaken flasks&option=203" rel="nofollow">shaken flasks;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=RAM (resonant acoustic mixing)&option=203" rel="nofollow">RAM (resonant acoustic mixing);</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=oxygen transfer&option=203" rel="nofollow">oxygen transfer;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=alginate production&option=203" rel="nofollow">alginate production;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=pseudoplastic fluid&option=203" rel="nofollow">pseudoplastic fluid;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Azotobacter vinelandii&option=203" rel="nofollow">Azotobacter vinelandii;</a> </p> <div class="translation"> 机译：Shaken烧瓶;RAM（谐振声混合）;氧气转移;藻酸盐生产;假塑性液体;消毒术vinelandii; </div> </li> </ul> </div> </div> <div class="literature cardcommon" id="literaturereference" style="display:none"> <div class="similarity "> <h3 class="all_title" id="enpatent111">引文网络</h3> <div class="referencetab clearfix"> <ul id="referencedaohang"> <li dataid="referenceul">参考文献</li> <li dataid="citationul">引证文献</li> <li dataid="commonreferenceul">共引文献</li> <li dataid="commoncitationul">同被引文献</li> <li dataid="tworeferenceul">二级参考文献</li> <li dataid="twocitationul">二级引证文献</li> </ul> </div> <div class="reference_details" id="referenceList"> <ul id="referenceul"></ul> <ul id="citationul"></ul> <ul id="commonreferenceul"></ul> <ul id="commoncitationul"></ul> <ul id="tworeferenceul"></ul> <ul id="twocitationul"></ul> </div> </div> </div> <div class="literature cardcommon"> <div class="similarity "> <h3 class="all_title" id="enpatent66">相似文献</h3> <div class="similaritytab clearfix"> <ul> <li class="active" >外文文献</li> </ul> </div> <div class="similarity_details"> <ul > <li> <div> <b>1. </b><a class="enjiyixqcontent" href="/journal-foreign-detail/0704025422781.html">Shaken flasks by resonant acoustic mixing in the biosynthesis of alginate by <fc xmlns="http://www.wiley.com/namespaces/wiley"> <fi>Azotobacter vinelandii</fi> </fc> <fi xmlns="http://www.wiley.com/namespaces/wiley">Azotobacter vinelandii</fi>Azotobacter vinelandii with non‐Newtonian rheological characteristics</a> <b>[J]</b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Reynoso‐Cereceda Greta I&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Reynoso‐Cereceda Greta I,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Córdova‐Aguilar María S&option=202" target="_blank" rel="nofollow" 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Shaken flasks by resonant acoustic mixing in the biosynthesis of alginate by Azotobacter vinelandii Azotobacter vinelandiiAzotobacter vinelandii with non‐Newtonian rheological characteristics

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