Abstract:
:Autoflocculation and bioflocculation are considered to be the most promising means for the economical harvesting of microalgae. We have therefore studied these phenomena with cultures of Scenedesmus obliquus produced during biological tertiary wastewater treatment. The quantity of extracellular polymers produced during ageing of the cultures proved insufficient to initiate bio-flocculation while the concentration of Ca(2+) and PO(4) (3-) of the treated effluent were too low to induce autoflocculation. It has been shown, however, that the algae sediment more readily upon ageing, possibly as a result of increased cell density. The use of density gradients made with Percoll (a colloidal solution of silica particles) allowed measurement of the true cell density and showed that this increases when cultures enter the declining growth phase. The quality of the biomass thus harvested is, however, considerably impaired, protein content decreasing from 62.7% (dry wt) during the exponential growth phase (day 5) to 14% at the end of cultures (day 21).
journal_name
Biotechnol Bioengjournal_title
Biotechnology and bioengineeringauthors
Lavoie A,de la Noüe Jdoi
10.1002/bit.260300707subject
Has Abstractpub_date
1987-11-01 00:00:00pages
852-9issue
7eissn
0006-3592issn
1097-0290journal_volume
30pub_type
杂志文章abstract::An in-situ, mid-infrared sensor was used to monitor the major analyte concentrations involved in the cultivation of Gluconacetobacter xylinus and the production of gluconacetan, a food-grade exopolysaccharide. To predict the analyte concentrations, three different sets of standard spectra were used to develop calibrat...
journal_title:Biotechnology and bioengineering
pub_type: 杂志文章
doi:10.1002/bit.10618
更新日期:2003-06-20 00:00:00
abstract::CTLA4 is a membrane receptor on cytotoxic T cells whose interaction with the B7 counterreceptor on B cells is important in alloantigen responses. Soluble recombinant human and murine CTLA4 were produced using either Chinese hamster ovary or NS-0 cell lines. Expression vectors were constructed containing the gene codin...
journal_title:Biotechnology and bioengineering
pub_type: 杂志文章
doi:10.1002/bit.260460502
更新日期:1995-06-05 00:00:00
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journal_title:Biotechnology and bioengineering
pub_type: 杂志文章
doi:10.1002/bit.260310714
更新日期:1988-05-01 00:00:00
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journal_title:Biotechnology and bioengineering
pub_type: 杂志文章
doi:10.1002/bit.26386
更新日期:2017-11-01 00:00:00
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journal_title:Biotechnology and bioengineering
pub_type: 杂志文章
doi:10.1002/(sici)1097-0290(1999)66:1<1::aid-bit1>3.0.
更新日期:1999-01-01 00:00:00
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journal_title:Biotechnology and bioengineering
pub_type: 杂志文章
doi:10.1002/bit.260330311
更新日期:1989-01-15 00:00:00
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doi:10.1002/bit.26913
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journal_title:Biotechnology and bioengineering
pub_type: 杂志文章
doi:10.1002/bit.260421011
更新日期:1993-11-20 00:00:00
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journal_title:Biotechnology and bioengineering
pub_type: 杂志文章
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更新日期:2010-04-01 00:00:00
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journal_title:Biotechnology and bioengineering
pub_type: 杂志文章
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更新日期:1993-10-01 00:00:00
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journal_title:Biotechnology and bioengineering
pub_type: 杂志文章
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更新日期:1979-05-01 00:00:00
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doi:10.1002/bit.26820
更新日期:2018-12-01 00:00:00
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journal_title:Biotechnology and bioengineering
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更新日期:1987-05-01 00:00:00
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journal_title:Biotechnology and bioengineering
pub_type: 杂志文章
doi:10.1002/bit.260320514
更新日期:1988-08-20 00:00:00
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更新日期:2002-09-30 00:00:00
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更新日期:2020-03-01 00:00:00
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journal_title:Biotechnology and bioengineering
pub_type: 杂志文章
doi:10.1002/(SICI)1097-0290(19960105)49:1<106::AID-BIT
更新日期:1996-01-05 00:00:00
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journal_title:Biotechnology and bioengineering
pub_type: 杂志文章
doi:10.1002/bit.260400704
更新日期:1992-10-05 00:00:00
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journal_title:Biotechnology and bioengineering
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doi:10.1002/bit.20386
更新日期:2005-02-20 00:00:00
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pub_type: 杂志文章
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journal_title:Biotechnology and bioengineering
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更新日期:1995-05-20 00:00:00
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journal_title:Biotechnology and bioengineering
pub_type: 杂志文章
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journal_title:Biotechnology and bioengineering
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journal_title:Biotechnology and bioengineering
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doi:10.1002/bit.260221007
更新日期:1980-10-01 00:00:00
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journal_title:Biotechnology and bioengineering
pub_type: 杂志文章
doi:10.1002/(SICI)1097-0290(19971020)56:2<145::AID-BIT
更新日期:1997-10-20 00:00:00
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journal_title:Biotechnology and bioengineering
pub_type: 杂志文章
doi:10.1002/bit.260240403
更新日期:1982-04-01 00:00:00
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journal_title:Biotechnology and bioengineering
pub_type: 传,古典文章,历史文章,杂志文章
doi:
更新日期:2000-03-20 00:00:00