About: Lactic acid production from lime-treated wheat straw by Bacillus coagulans: neutralization of acid by fed-batch addition of alkaline substrate

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About: Lactic acid production from lime-treated wheat straw by Bacillus coagulans: neutralization of acid by fed-batch addition of alkaline substrate Goto Sponge NotDistinct Permalink

An Entity of Type : schema:ScholarlyArticle, within Data Space : covidontheweb.inria.fr associated with source document(s)

Attributes	Values
type	Academic Article research paper schema:ScholarlyArticle
isDefinedBy	Covid-on-the-Web dataset
has title	Lactic acid production from lime-treated wheat straw by Bacillus coagulans: neutralization of acid by fed-batch addition of alkaline substrate
Creator	Bakker, Robert De Jong, Gerrit Eggink, Ruud Jansen, Diana Maas, Ronald Mickel, L Visser, Ed Weusthuis,
Source	PMC
abstract	Conventional processes for lignocellulose-to-organic acid conversion requires pretreatment, enzymatic hydrolysis, and microbial fermentation. In this study, lime-treated wheat straw was hydrolyzed and fermented simultaneously to lactic acid by an enzyme preparation and Bacillus coagulans DSM 2314. Decrease in pH because of lactic acid formation was partially adjusted by automatic addition of the alkaline substrate. After 55 h of incubation, the polymeric glucan, xylan, and arabinan present in the lime-treated straw were hydrolyzed for 55%, 75%, and 80%, respectively. Lactic acid (40.7 g/l) indicated a fermentation efficiency of 81% and a chiral l(+)-lactic acid purity of 97.2%. In total, 711 g lactic acid was produced out of 2,706 g lime-treated straw, representing 43% of the overall theoretical maximum yield. Approximately half of the lactic acid produced was neutralized by fed-batch feeding of lime-treated straw, whereas the remaining half was neutralized during the batch phase with a Ca(OH)(2) suspension. Of the lime added during the pretreatment of straw, 61% was used for the neutralization of lactic acid. This is the first demonstration of a process having a combined alkaline pretreatment of lignocellulosic biomass and pH control in fermentation resulting in a significant saving of lime consumption and avoiding the necessity to recycle lime.
has issue date	2008-04-01(xsd:dateTime)
bibo:doi	10.1007/s00253-008-1361-1
bibo:pmid	18247027
has license	no-cc
sha1sum (hex)	d298eb1fee8b76e8c1a55cb8b200e2bf46c926a5
schema:url	https://doi.org/10.1007/s00253-008-1361-1
resource representing a document's title	Lactic acid production from lime-treated wheat straw by Bacillus coagulans: neutralization of acid by fed-batch addition of alkaline substrate
has PubMed Central identifier	PMC2270352
has PubMed identifier	18247027
schema:publication	Appl Microbiol Biotechnol
resource representing a document's body	covid:d298eb1fee8b76e8c1a55cb8b200e2bf46c926a5#body_text
is schema:about of	named entity 'demonstration' named entity 'processes' named entity 'lime' named entity 'maximum' named entity 'alkaline' named entity 'After' named entity 'consumption' named entity 'straw' named entity 'suspension' named entity 'Bacillus' named entity 'FEEDING' named entity 'acid' named entity 'formation' named entity 'produced' named entity 'chiral' named entity 'neutralization' named entity 'yield' named entity 'straw' named entity 'study' named entity 'addition' named entity 'substrate' named entity 'enzyme' named entity 'lignocellulose' named entity 'lime-treated' named entity 'alkaline' named entity 'Lactic acid production' named entity 'wheat straw' named entity 'xylan' named entity 'hydrolysis' named entity 'lactose' named entity 'B. coagulans' named entity 'lactic acid' named entity 'lag phase' named entity 'fermenter' named entity 'polysaccharides' named entity 'Lime' named entity 'lactic acid' named entity 'acetic acid' named entity 'enzyme' named entity 'acetic acid' named entity 'monomeric' named entity 'B. coagulans' named entity 'lactic acid' named entity 'Fig' named entity 'lactic acid' named entity 'barley malt' named entity 'liquid chromatography' named entity 'dehydrated' named entity 'w/w' named entity 'calcium hydroxide' named entity 'w/w' named entity 'gypsum' named entity 'fermenter' named entity 'lactic acid' named entity 'lactic acid' named entity 'alkaline' named entity '1.14' named entity 'fed-batch' named entity 'pentose' named entity 'microbial fermentation' named entity 'xylose' named entity 'Glucose' named entity 'feedstock' named entity 'nitrogen' named entity 'arabinan' named entity 'downstream processing' named entity 'hexose' named entity 'lactic acid' named entity 'polymeric material' named entity 'micro-organism' named entity 'polysaccharides' named entity 'batch-wise' named entity 'calcium hydroxide' named entity 'Germany'

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