Abstract：
:L(+) Lactic acid fermentation was studied by Lactobacillus amylophilus GV6 under the influence of inexpensive nitrogen sources (red lentil-RL, and Baker's yeast cells-YC) and starch by response surface methodology (RSM). Central composite rotatable design (CCRD) was employed to determine maximum lactic acid production at optimum values for process variables RL, YC and incubation period (IP) and a satisfactory fit model was realized. Lactic acid production was significantly affected by RL and IP interactions as well as by independent variables RL and YC. Maximum lactic acid production of 13.5 g/15.2g starch was obtained with RL 0.8%, YC 1% and IP of 48 h, with 92% lactic acid yield efficiency (g lactic acid produced/g substrate utilized) and 40% increase (from 50 g to 92 g/100 g starch utilized) in lactic acid production. This is the first report on response optimization in direct fermentation of starch to lactic acid using inexpensive nitrogen sources substituting peptone and yeast extract in anaerobic submerged fermentation by amylolytic lactic acid bacteria (LAB).
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Altaf M,Naveena BJ,Reddy Gdoi
10.1016/j.biortech.2006.02.013subject
Has Abstractpub_date
2007-02-01 00:00:00pages
498-503issue
3eissn
0960-8524issn
1873-2976pii
S0960-8524(06)00062-9journal_volume
98pub_type
杂志文章abstract：:Interspecies electron transfer between bacteria and archaea plays a vital role in enhancing energy efficiency of anaerobic digestion (AD). Conductive carbon materials (i.e. graphene nanomaterial and activated charcoal) were assessed to enhance AD of ethanol (a key intermediate product after acidogenesis of algae). The...
journal_title：Bioresource technology
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journal_title：Bioresource technology
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更新日期：2014-02-01 00:00:00
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journal_title：Bioresource technology
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journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2013.01.013
更新日期：2013-03-01 00:00:00
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pub_type： 杂志文章
doi：10.1016/j.biortech.2010.08.122
更新日期：2011-01-01 00:00:00
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doi：10.1016/j.biortech.2012.02.129
更新日期：2012-06-01 00:00:00
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pub_type： 杂志文章
doi：10.1016/j.biortech.2012.09.128
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更新日期：2017-01-01 00:00:00
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pub_type： 杂志文章
doi：10.1016/j.biortech.2007.06.034
更新日期：2008-05-01 00:00:00
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pub_type： 杂志文章
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更新日期：2016-10-01 00:00:00
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journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2015.11.082
更新日期：2016-02-01 00:00:00
abstract：:Methyl or ethyl esters of long chain fatty acids are called biodiesel. Biodiesel is synthesized by the alcoholysis of oils/fats. In this work, lipase from Thermomyces lanuginosus was precipitated over the clusters of Fe3O4 nanoparticles. This biocatalyst preparation was used for obtaining biodiesel from soybean oil. A...
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doi：10.1016/j.biortech.2016.02.134
更新日期：2016-06-01 00:00:00
