Comprehensive utilization of waste hemicelluloses during ethanol production to increase lactic acid yield: from pretreatment to fermentation.
Identifieur interne : 002309 ( Main/Exploration ); précédent : 002308; suivant : 002310Comprehensive utilization of waste hemicelluloses during ethanol production to increase lactic acid yield: from pretreatment to fermentation.
Auteurs : Liming Zhang [République populaire de Chine] ; Tingting You [République populaire de Chine] ; Lu Zhang [République populaire de Chine] ; Mingfei Li [République populaire de Chine] ; Feng Xu [République populaire de Chine]Source :
- Biotechnology for biofuels [ 1754-6834 ] ; 2014.
Abstract
BACKGROUND
Reducing the cost of producing cellulosic ethanol is essential for the industrialization of biorefinery. Several processes are currently under investigation, but few of these techniques are entirely satisfactory in terms of competitive cost or environmental impact. In this study, a new ethanol and lactic acid (LA) coproduction is proposed. The technique involved addition of waste alkaline peroxide pretreated hydrolysate (mainly LA and hemicelluloses) to the reaction mixture after ethanol fermentation (mainly LA and xylose) to reduce the ethanol production cost.
RESULTS
The following processes were investigated to optimize LA production: no addition of hemicelluloses or hydrolysate, addition of recycled hemicelluloses, and addition of concentrated hydrolysate. The addition of concentrated hydrolysate at 48 hours, which resulted in a maximum LA concentration of 22.3 g/L, was the most environment-friendly and cost-effective process. After the improved fermentation, 361 mg LA and 132 mg ethanol were produced from 1 g of raw poplar wood. That is, the production of one gallon of ethanol produced $9 worth of LA.
CONCLUSIONS
The amount of LA produced from the pretreated hydrolysate and reaction mixture after ethanol fermentation cannot be underestimated. The recovery of hydrolysate rich in LA and hemicelluloses (or xylose) significantly improved LA yield and further reduced the ethanol production cost.
DOI: 10.1186/s13068-014-0189-4
PubMed: 25606053
PubMed Central: PMC4300168
Affiliations:
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MOE Key Laboratory of Wooden Material Science and Application, Beijing Forestry University, Beijing, 100083 China.</nlm:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing, 100083 China ; MOE Key Laboratory of Wooden Material Science and Application, Beijing Forestry University, Beijing</wicri:regionArea><placeName><settlement type="city">Pékin</settlement></placeName></affiliation></author><author><name sortKey="Xu, Feng" sort="Xu, Feng" uniqKey="Xu F" first="Feng" last="Xu">Feng Xu</name><affiliation wicri:level="3"><nlm:affiliation>Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing, 100083 China ; MOE Key Laboratory of Wooden Material Science and Application, Beijing Forestry University, Beijing, 100083 China.</nlm:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing, 100083 China ; 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MOE Key Laboratory of Wooden Material Science and Application, Beijing Forestry University, Beijing, 100083 China.</nlm:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing, 100083 China ; MOE Key Laboratory of Wooden Material Science and Application, Beijing Forestry University, Beijing</wicri:regionArea><placeName><settlement type="city">Pékin</settlement></placeName></affiliation></author><author><name sortKey="Xu, Feng" sort="Xu, Feng" uniqKey="Xu F" first="Feng" last="Xu">Feng Xu</name><affiliation wicri:level="3"><nlm:affiliation>Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing, 100083 China ; MOE Key Laboratory of Wooden Material Science and Application, Beijing Forestry University, Beijing, 100083 China.</nlm:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing, 100083 China ; MOE Key Laboratory of Wooden Material Science and Application, Beijing Forestry University, Beijing</wicri:regionArea><placeName><settlement type="city">Pékin</settlement></placeName></affiliation></author></analytic><series><title level="j">Biotechnology for biofuels</title><idno type="ISSN">1754-6834</idno><imprint><date when="2014" type="published">2014</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><p><b>BACKGROUND</b></p><p>Reducing the cost of producing cellulosic ethanol is essential for the industrialization of biorefinery. Several processes are currently under investigation, but few of these techniques are entirely satisfactory in terms of competitive cost or environmental impact. In this study, a new ethanol and lactic acid (LA) coproduction is proposed. The technique involved addition of waste alkaline peroxide pretreated hydrolysate (mainly LA and hemicelluloses) to the reaction mixture after ethanol fermentation (mainly LA and xylose) to reduce the ethanol production cost.</p></div><div type="abstract" xml:lang="en"><p><b>RESULTS</b></p><p>The following processes were investigated to optimize LA production: no addition of hemicelluloses or hydrolysate, addition of recycled hemicelluloses, and addition of concentrated hydrolysate. The addition of concentrated hydrolysate at 48 hours, which resulted in a maximum LA concentration of 22.3 g/L, was the most environment-friendly and cost-effective process. After the improved fermentation, 361 mg LA and 132 mg ethanol were produced from 1 g of raw poplar wood. That is, the production of one gallon of ethanol produced $9 worth of LA.</p></div><div type="abstract" xml:lang="en"><p><b>CONCLUSIONS</b></p><p>The amount of LA produced from the pretreated hydrolysate and reaction mixture after ethanol fermentation cannot be underestimated. The recovery of hydrolysate rich in LA and hemicelluloses (or xylose) significantly improved LA yield and further reduced the ethanol production cost.</p></div></front></TEI><pubmed><MedlineCitation Status="PubMed-not-MEDLINE" Owner="NLM"><PMID Version="1">25606053</PMID><DateCompleted><Year>2015</Year><Month>01</Month><Day>21</Day></DateCompleted><DateRevised><Year>2020</Year><Month>10</Month><Day>01</Day></DateRevised><Article PubModel="Electronic-eCollection"><Journal><ISSN IssnType="Print">1754-6834</ISSN><JournalIssue CitedMedium="Print"><Volume>7</Volume><Issue>1</Issue><PubDate><Year>2014</Year></PubDate></JournalIssue><Title>Biotechnology for biofuels</Title><ISOAbbreviation>Biotechnol Biofuels</ISOAbbreviation></Journal><ArticleTitle>Comprehensive utilization of waste hemicelluloses during ethanol production to increase lactic acid yield: from pretreatment to fermentation.</ArticleTitle><Pagination><MedlinePgn>494</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1186/s13068-014-0189-4</ELocationID><Abstract><AbstractText Label="BACKGROUND" NlmCategory="BACKGROUND">Reducing the cost of producing cellulosic ethanol is essential for the industrialization of biorefinery. Several processes are currently under investigation, but few of these techniques are entirely satisfactory in terms of competitive cost or environmental impact. In this study, a new ethanol and lactic acid (LA) coproduction is proposed. The technique involved addition of waste alkaline peroxide pretreated hydrolysate (mainly LA and hemicelluloses) to the reaction mixture after ethanol fermentation (mainly LA and xylose) to reduce the ethanol production cost.</AbstractText><AbstractText Label="RESULTS" NlmCategory="RESULTS">The following processes were investigated to optimize LA production: no addition of hemicelluloses or hydrolysate, addition of recycled hemicelluloses, and addition of concentrated hydrolysate. The addition of concentrated hydrolysate at 48 hours, which resulted in a maximum LA concentration of 22.3 g/L, was the most environment-friendly and cost-effective process. After the improved fermentation, 361 mg LA and 132 mg ethanol were produced from 1 g of raw poplar wood. That is, the production of one gallon of ethanol produced $9 worth of LA.</AbstractText><AbstractText Label="CONCLUSIONS" NlmCategory="CONCLUSIONS">The amount of LA produced from the pretreated hydrolysate and reaction mixture after ethanol fermentation cannot be underestimated. The recovery of hydrolysate rich in LA and hemicelluloses (or xylose) significantly improved LA yield and further reduced the ethanol production cost.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Zhang</LastName><ForeName>Liming</ForeName><Initials>L</Initials><AffiliationInfo><Affiliation>Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing, 100083 China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>You</LastName><ForeName>Tingting</ForeName><Initials>T</Initials><AffiliationInfo><Affiliation>Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing, 100083 China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Zhang</LastName><ForeName>Lu</ForeName><Initials>L</Initials><AffiliationInfo><Affiliation>Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing, 100083 China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Li</LastName><ForeName>Mingfei</ForeName><Initials>M</Initials><AffiliationInfo><Affiliation>Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing, 100083 China ; MOE Key Laboratory of Wooden Material Science and Application, Beijing Forestry University, Beijing, 100083 China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Xu</LastName><ForeName>Feng</ForeName><Initials>F</Initials><AffiliationInfo><Affiliation>Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing, 100083 China ; MOE Key Laboratory of Wooden Material Science and Application, Beijing Forestry University, Beijing, 100083 China.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2014</Year><Month>12</Month><Day>31</Day></ArticleDate></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>Biotechnol Biofuels</MedlineTA><NlmUniqueID>101316935</NlmUniqueID><ISSNLinking>1754-6834</ISSNLinking></MedlineJournalInfo><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="N">Alkaline peroxide pretreatment</Keyword><Keyword MajorTopicYN="N">Cost-effective</Keyword><Keyword MajorTopicYN="N">Ethanol</Keyword><Keyword MajorTopicYN="N">Hemicelluloses</Keyword><Keyword MajorTopicYN="N">Lactic acid</Keyword></KeywordList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2014</Year><Month>08</Month><Day>20</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2014</Year><Month>12</Month><Day>16</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2015</Year><Month>1</Month><Day>22</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2015</Year><Month>1</Month><Day>22</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2015</Year><Month>1</Month><Day>22</Day><Hour>6</Hour><Minute>1</Minute></PubMedPubDate></History><PublicationStatus>epublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">25606053</ArticleId><ArticleId IdType="doi">10.1186/s13068-014-0189-4</ArticleId><ArticleId IdType="pii">189</ArticleId><ArticleId IdType="pmc">PMC4300168</ArticleId></ArticleIdList><ReferenceList><Reference><Citation>Biotechnol Biofuels. 2013 Jan 28;6(1):17</Citation><ArticleIdList><ArticleId IdType="pubmed">23356712</ArticleId></ArticleIdList></Reference><Reference><Citation>Bioresour Technol. 2013 Dec;150:321-7</Citation><ArticleIdList><ArticleId IdType="pubmed">24185034</ArticleId></ArticleIdList></Reference><Reference><Citation>Science. 2007 Feb 9;315(5813):804-7</Citation><ArticleIdList><ArticleId IdType="pubmed">17289988</ArticleId></ArticleIdList></Reference><Reference><Citation>Trends Biotechnol. 2007 Apr;25(4):153-7</Citation><ArticleIdList><ArticleId IdType="pubmed">17320227</ArticleId></ArticleIdList></Reference><Reference><Citation>Biotechnol Biofuels. 2014 Jun 26;7:99</Citation><ArticleIdList><ArticleId IdType="pubmed">24991233</ArticleId></ArticleIdList></Reference><Reference><Citation>Appl Biochem Biotechnol. 2000 Spring;84-86:665-77</Citation><ArticleIdList><ArticleId IdType="pubmed">10849826</ArticleId></ArticleIdList></Reference><Reference><Citation>J Ind Microbiol Biotechnol. 2006 Jun;33(6):469-74</Citation><ArticleIdList><ArticleId IdType="pubmed">16491359</ArticleId></ArticleIdList></Reference><Reference><Citation>Appl Biochem Biotechnol. 2009 May;155(1-3):397-406</Citation><ArticleIdList><ArticleId IdType="pubmed">19214798</ArticleId></ArticleIdList></Reference><Reference><Citation>Bioresour Technol. 2014 Jul;164:292-8</Citation><ArticleIdList><ArticleId IdType="pubmed">24862006</ArticleId></ArticleIdList></Reference><Reference><Citation>J Ind Microbiol Biotechnol. 2003 May;30(5):279-91</Citation><ArticleIdList><ArticleId IdType="pubmed">12698321</ArticleId></ArticleIdList></Reference></ReferenceList></PubmedData></pubmed><affiliations><list><country><li>République populaire de Chine</li></country><settlement><li>Pékin</li></settlement></list><tree><country name="République populaire de Chine"><noRegion><name sortKey="Zhang, Liming" sort="Zhang, Liming" uniqKey="Zhang L" first="Liming" last="Zhang">Liming Zhang</name></noRegion><name sortKey="Li, Mingfei" sort="Li, Mingfei" uniqKey="Li M" first="Mingfei" last="Li">Mingfei Li</name><name sortKey="Xu, Feng" sort="Xu, Feng" uniqKey="Xu F" first="Feng" last="Xu">Feng Xu</name><name sortKey="You, Tingting" sort="You, Tingting" uniqKey="You T" first="Tingting" last="You">Tingting You</name><name sortKey="Zhang, Lu" sort="Zhang, Lu" uniqKey="Zhang L" first="Lu" last="Zhang">Lu Zhang</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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