Influence of aeration rate and carrier concentration on xylitol production from sugarcane bagasse hydrolyzate in immobilized-cell fluidized bed reactor
A new approach to the biotechnological production of xylitol from sugarcane bagasse using Candida guilliermondii cells immobilized on porous glass in a fluidized bed reactor (FBR) is presented. The influence of aeration rate (AR) and carrier concentration ( C s) on the production process was evaluat...
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| Veröffentlicht in: | Process biochemistry (1991) 2005, Vol.40 (1), p.113-118 |
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| container_title | Process biochemistry (1991) |
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| creator | Santos, Júlio C. Converti, Attilio de Carvalho, Walter Mussatto, Solange I. da Silva, Silvio S. |
| description | A new approach to the biotechnological production of xylitol from sugarcane bagasse using
Candida guilliermondii cells immobilized on porous glass in a fluidized bed reactor (FBR) is presented. The influence of aeration rate (AR) and carrier concentration (
C
s) on the production process was evaluated. Seven batch fermentation runs were conducted according to a 2
2 factorial design. The results obtained showed that
C
s had a negative influence on xylitol yield (
Y
p/s) and volumetric productivity (
Q
p), whereas AR had a positive influence on
Q
p and a negative influence on
Y
p/s. With an AR=0.093
min
−1 and
C
s=62.5
g/l, the
Y
p/s value was low (0.25
g/g), but the
Q
p was highest (0.44
g/l
h), probably because cell metabolism was faster when more oxygen was available to the yeast. When the highest levels of the AR and
C
s were used, the xylitol yield and concentration were the lowest and the cell concentration was the highest, suggesting that cell metabolism was directed preferentially towards biomass production instead of xylitol accumulation. |
| doi_str_mv | 10.1016/j.procbio.2003.11.045 |
| format | Article |
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Candida guilliermondii cells immobilized on porous glass in a fluidized bed reactor (FBR) is presented. The influence of aeration rate (AR) and carrier concentration (
C
s) on the production process was evaluated. Seven batch fermentation runs were conducted according to a 2
2 factorial design. The results obtained showed that
C
s had a negative influence on xylitol yield (
Y
p/s) and volumetric productivity (
Q
p), whereas AR had a positive influence on
Q
p and a negative influence on
Y
p/s. With an AR=0.093
min
−1 and
C
s=62.5
g/l, the
Y
p/s value was low (0.25
g/g), but the
Q
p was highest (0.44
g/l
h), probably because cell metabolism was faster when more oxygen was available to the yeast. When the highest levels of the AR and
C
s were used, the xylitol yield and concentration were the lowest and the cell concentration was the highest, suggesting that cell metabolism was directed preferentially towards biomass production instead of xylitol accumulation.</description><identifier>ISSN: 1359-5113</identifier><identifier>EISSN: 1873-3298</identifier><identifier>DOI: 10.1016/j.procbio.2003.11.045</identifier><language>eng</language><publisher>Elsevier Ltd</publisher><subject>Aeration ; Fluidized bed reactor ; Immobilized cells ; Porous glass ; Sugarcane bagasse ; Xylitol</subject><ispartof>Process biochemistry (1991), 2005, Vol.40 (1), p.113-118</ispartof><rights>2003</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c473t-8a57d18d62ebe8b65e8c768cfb78594bfcbbaa199124a80fda24d71c2ccaefb43</citedby><cites>FETCH-LOGICAL-c473t-8a57d18d62ebe8b65e8c768cfb78594bfcbbaa199124a80fda24d71c2ccaefb43</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0032959203004710$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,4010,27900,27901,27902,65306</link.rule.ids></links><search><creatorcontrib>Santos, Júlio C.</creatorcontrib><creatorcontrib>Converti, Attilio</creatorcontrib><creatorcontrib>de Carvalho, Walter</creatorcontrib><creatorcontrib>Mussatto, Solange I.</creatorcontrib><creatorcontrib>da Silva, Silvio S.</creatorcontrib><title>Influence of aeration rate and carrier concentration on xylitol production from sugarcane bagasse hydrolyzate in immobilized-cell fluidized bed reactor</title><title>Process biochemistry (1991)</title><description>A new approach to the biotechnological production of xylitol from sugarcane bagasse using
Candida guilliermondii cells immobilized on porous glass in a fluidized bed reactor (FBR) is presented. The influence of aeration rate (AR) and carrier concentration (
C
s) on the production process was evaluated. Seven batch fermentation runs were conducted according to a 2
2 factorial design. The results obtained showed that
C
s had a negative influence on xylitol yield (
Y
p/s) and volumetric productivity (
Q
p), whereas AR had a positive influence on
Q
p and a negative influence on
Y
p/s. With an AR=0.093
min
−1 and
C
s=62.5
g/l, the
Y
p/s value was low (0.25
g/g), but the
Q
p was highest (0.44
g/l
h), probably because cell metabolism was faster when more oxygen was available to the yeast. When the highest levels of the AR and
C
s were used, the xylitol yield and concentration were the lowest and the cell concentration was the highest, suggesting that cell metabolism was directed preferentially towards biomass production instead of xylitol accumulation.</description><subject>Aeration</subject><subject>Fluidized bed reactor</subject><subject>Immobilized cells</subject><subject>Porous glass</subject><subject>Sugarcane bagasse</subject><subject>Xylitol</subject><issn>1359-5113</issn><issn>1873-3298</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2005</creationdate><recordtype>article</recordtype><recordid>eNqFUcFu1DAQjVCRaBc-AcknbgmZJN44J4SqtlSqxAXO1ng8Ll4lcbGTqtsf4Xdx2L0j2Zqx_eaN37yi-Ah1BTXsPx-qpxjI-FA1dd1WAFXdyTfFJai-LdtmUBc5b-VQSoD2XXGV0iHjAKC-LP7cz25ceSYWwQnkiIsPs8iBBc5WEMboOQoKGTIv5-e8Xo6jX8Iocmu70r9bF8Mk0vqIkXBmYfARU2Lx62hjGI-vG6WfhZ-mYPzoX9mWxOMocn9vt6MweUdGWkJ8X7x1OCb-cI674uftzY_rb-XD97v7668PJXV9u5QKZW9B2X3DhpXZS1bU7xU50ys5dMaRMYgwDNB0qGpnselsD9QQITvTtbvi04k36_i9clr05NP2rawgrEk3SnZtJ2UGyhOQYkgpstNP0U8YjxpqvdmgD_psg95s0AA625DrvpzqOKt4zqPUifw2b-sj06Jt8P9h-Av-l5m6</recordid><startdate>2005</startdate><enddate>2005</enddate><creator>Santos, Júlio C.</creator><creator>Converti, Attilio</creator><creator>de Carvalho, Walter</creator><creator>Mussatto, Solange I.</creator><creator>da Silva, Silvio S.</creator><general>Elsevier Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>F28</scope><scope>FR3</scope></search><sort><creationdate>2005</creationdate><title>Influence of aeration rate and carrier concentration on xylitol production from sugarcane bagasse hydrolyzate in immobilized-cell fluidized bed reactor</title><author>Santos, Júlio C. ; Converti, Attilio ; de Carvalho, Walter ; Mussatto, Solange I. ; da Silva, Silvio S.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c473t-8a57d18d62ebe8b65e8c768cfb78594bfcbbaa199124a80fda24d71c2ccaefb43</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2005</creationdate><topic>Aeration</topic><topic>Fluidized bed reactor</topic><topic>Immobilized cells</topic><topic>Porous glass</topic><topic>Sugarcane bagasse</topic><topic>Xylitol</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Santos, Júlio C.</creatorcontrib><creatorcontrib>Converti, Attilio</creatorcontrib><creatorcontrib>de Carvalho, Walter</creatorcontrib><creatorcontrib>Mussatto, Solange I.</creatorcontrib><creatorcontrib>da Silva, Silvio S.</creatorcontrib><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><jtitle>Process biochemistry (1991)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Santos, Júlio C.</au><au>Converti, Attilio</au><au>de Carvalho, Walter</au><au>Mussatto, Solange I.</au><au>da Silva, Silvio S.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Influence of aeration rate and carrier concentration on xylitol production from sugarcane bagasse hydrolyzate in immobilized-cell fluidized bed reactor</atitle><jtitle>Process biochemistry (1991)</jtitle><date>2005</date><risdate>2005</risdate><volume>40</volume><issue>1</issue><spage>113</spage><epage>118</epage><pages>113-118</pages><issn>1359-5113</issn><eissn>1873-3298</eissn><abstract>A new approach to the biotechnological production of xylitol from sugarcane bagasse using
Candida guilliermondii cells immobilized on porous glass in a fluidized bed reactor (FBR) is presented. The influence of aeration rate (AR) and carrier concentration (
C
s) on the production process was evaluated. Seven batch fermentation runs were conducted according to a 2
2 factorial design. The results obtained showed that
C
s had a negative influence on xylitol yield (
Y
p/s) and volumetric productivity (
Q
p), whereas AR had a positive influence on
Q
p and a negative influence on
Y
p/s. With an AR=0.093
min
−1 and
C
s=62.5
g/l, the
Y
p/s value was low (0.25
g/g), but the
Q
p was highest (0.44
g/l
h), probably because cell metabolism was faster when more oxygen was available to the yeast. When the highest levels of the AR and
C
s were used, the xylitol yield and concentration were the lowest and the cell concentration was the highest, suggesting that cell metabolism was directed preferentially towards biomass production instead of xylitol accumulation.</abstract><pub>Elsevier Ltd</pub><doi>10.1016/j.procbio.2003.11.045</doi><tpages>6</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1359-5113 |
| ispartof | Process biochemistry (1991), 2005, Vol.40 (1), p.113-118 |
| issn | 1359-5113 1873-3298 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_28543455 |
| source | Elsevier ScienceDirect Journals |
| subjects | Aeration Fluidized bed reactor Immobilized cells Porous glass Sugarcane bagasse Xylitol |
| title | Influence of aeration rate and carrier concentration on xylitol production from sugarcane bagasse hydrolyzate in immobilized-cell fluidized bed reactor |
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