Discarded oranges and brewer's spent grains as promoting ingredients for microbial growth by submerged and solid state fermentation of agro-industrial waste mixtures.
Identifieur interne : 000E82 ( Main/Exploration ); précédent : 000E81; suivant : 000E83Discarded oranges and brewer's spent grains as promoting ingredients for microbial growth by submerged and solid state fermentation of agro-industrial waste mixtures.
Auteurs : Theodoros Aggelopoulos [Grèce] ; Argyro Bekatorou ; Ashok Pandey ; Maria Kanellaki ; Athanasios A. KoutinasSource :
- Applied biochemistry and biotechnology [ 1559-0291 ] ; 2013.
English descriptors
- KwdEn :
- Agriculture (methods), Batch Cell Culture Techniques (methods), Beer (microbiology), Bioreactors (microbiology), Cell Proliferation, Citrus sinensis (microbiology), Edible Grain (microbiology), Fermentation, Industrial Waste (prevention & control), Kluyveromyces (growth & development), Refuse Disposal (methods), Saccharomyces cerevisiae (growth & development).
- MESH :
- chemical , prevention & control : Industrial Waste.
- growth & development : Kluyveromyces, Saccharomyces cerevisiae.
- methods : Agriculture, Batch Cell Culture Techniques, Refuse Disposal.
- microbiology : Beer, Bioreactors, Citrus sinensis, Edible Grain.
- Cell Proliferation, Fermentation.
Abstract
The exploitation of various agro-industrial wastes for microbial cell mass production of Kluyveromyces marxianus, kefir, and Saccharomyces cerevisiae is reported in the present investigation. Specifically, the promotional effect of whole orange pulp on cell growth in mixtures consisting of cheese whey, molasses, and potato pulp in submerged fermentation processes was examined. A 2- to 3-fold increase of cell mass was observed in the presence of orange pulp. Likewise, the promotional effect of brewer's spent grains on cell growth in solid state fermentation of mixtures of whey, molasses, potato pulp, malt spent rootlets, and orange pulp was examined. The cell mass was increased by 3-fold for K. marxianus and 2-fold for S. cerevisiae in the presence of these substrates, proving their suitability for single-cell protein production without the need for extra nutrients. Cell growth kinetics were also studied by measurements of cell counts at various time intervals at different concentrations of added orange pulp. The protein content of the fermented substrates was increased substantially, indicating potential use of mixed agro-industrial wastes of negligible cost, as protein-enriched livestock feed, achieving at the same time creation of added value and waste minimization.
DOI: 10.1007/s12010-013-0313-0
PubMed: 23780341
Affiliations:
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Le document en format XML
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Koutinas</name></author></analytic><series><title level="j">Applied biochemistry and biotechnology</title><idno type="eISSN">1559-0291</idno><imprint><date when="2013" type="published">2013</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Agriculture (methods)</term><term>Batch Cell Culture Techniques (methods)</term><term>Beer (microbiology)</term><term>Bioreactors (microbiology)</term><term>Cell Proliferation</term><term>Citrus sinensis (microbiology)</term><term>Edible Grain (microbiology)</term><term>Fermentation</term><term>Industrial Waste (prevention & control)</term><term>Kluyveromyces (growth & development)</term><term>Refuse Disposal (methods)</term><term>Saccharomyces cerevisiae (growth & development)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="prevention & control" xml:lang="en"><term>Industrial Waste</term></keywords><keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Kluyveromyces</term><term>Saccharomyces cerevisiae</term></keywords><keywords scheme="MESH" qualifier="methods" xml:lang="en"><term>Agriculture</term><term>Batch Cell Culture Techniques</term><term>Refuse Disposal</term></keywords><keywords scheme="MESH" qualifier="microbiology" xml:lang="en"><term>Beer</term><term>Bioreactors</term><term>Citrus sinensis</term><term>Edible Grain</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Cell Proliferation</term><term>Fermentation</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The exploitation of various agro-industrial wastes for microbial cell mass production of Kluyveromyces marxianus, kefir, and Saccharomyces cerevisiae is reported in the present investigation. Specifically, the promotional effect of whole orange pulp on cell growth in mixtures consisting of cheese whey, molasses, and potato pulp in submerged fermentation processes was examined. A 2- to 3-fold increase of cell mass was observed in the presence of orange pulp. Likewise, the promotional effect of brewer's spent grains on cell growth in solid state fermentation of mixtures of whey, molasses, potato pulp, malt spent rootlets, and orange pulp was examined. The cell mass was increased by 3-fold for K. marxianus and 2-fold for S. cerevisiae in the presence of these substrates, proving their suitability for single-cell protein production without the need for extra nutrients. Cell growth kinetics were also studied by measurements of cell counts at various time intervals at different concentrations of added orange pulp. The protein content of the fermented substrates was increased substantially, indicating potential use of mixed agro-industrial wastes of negligible cost, as protein-enriched livestock feed, achieving at the same time creation of added value and waste minimization.</div></front></TEI><affiliations><list><country><li>Grèce</li></country></list><tree><noCountry><name sortKey="Bekatorou, Argyro" sort="Bekatorou, Argyro" uniqKey="Bekatorou A" first="Argyro" last="Bekatorou">Argyro Bekatorou</name><name sortKey="Kanellaki, Maria" sort="Kanellaki, Maria" uniqKey="Kanellaki M" first="Maria" last="Kanellaki">Maria Kanellaki</name><name sortKey="Koutinas, Athanasios A" sort="Koutinas, Athanasios A" uniqKey="Koutinas A" first="Athanasios A" last="Koutinas">Athanasios A. Koutinas</name><name sortKey="Pandey, Ashok" sort="Pandey, Ashok" uniqKey="Pandey A" first="Ashok" last="Pandey">Ashok Pandey</name></noCountry><country name="Grèce"><noRegion><name sortKey="Aggelopoulos, Theodoros" sort="Aggelopoulos, Theodoros" uniqKey="Aggelopoulos T" first="Theodoros" last="Aggelopoulos">Theodoros Aggelopoulos</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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