Searched for:
(1 - 20 of 34)

Pages

document
Boender, L.G.M. (author), De Hulster, E.A.F. (author), Van Maris, A.J.A. (author), Daran-Lapujade, P.A.S. (author), Pronk, J.T. (author)
Growth at near-zero specific growth rates is a largely unexplored area of yeast physiology. To investigate the physiology of Saccharomyces cerevisiae under these conditions, the effluent removal pipe of anaerobic, glucose-limited chemostat culture (dilution rate, 0.025 h–1) was fitted with a 0.22-µm-pore-size polypropylene filter unit. This...
journal article 2009
document
Oud, B. (author), Guadalupe-Medina, V. (author), Nijkamp, J.F. (author), De Ridder, D. (author), Pronk, J.T. (author), Van Maris, A.J.A. (author), Daran, J.G. (author)
Laboratory evolution of the yeast Saccharomyces cerevisiae in bioreactor batch cultures yielded variants that grow as multicellular, fast-sedimenting clusters. Knowledge of the molecular basis of this phenomenon may contribute to the understanding of natural evolution of multicellularity and to manipulating cell sedimentation in laboratory and...
journal article 2013
document
Abbott, D.A. (author), Knijnenburg, T.A. (author), De Poorter, L.M. (author), Reinders, M.J. (author), Pronk, J.T. (author), Van Maris, A.J. (author)
Transcriptional responses to four weak organic acids (benzoate, sorbate, acetate and propionate) were investigated in anaerobic, glucose-limited chemostat cultures of Saccharomyces cerevisiae. To enable quantitative comparison of the responses to the acids, their concentrations were chosen such that they caused a 50% decrease of the biomass...
journal article 2007
document
Koopman, F.W. (author), Beekwilder, J. (author), Crimi, B. (author), Van Houwelingen, A. (author), Hall, R.D. (author), Bosch, D. (author), Van Maris, A.J.A. (author), Pronk, J.T. (author), Daran, J.M. (author)
Background Flavonoids comprise a large family of secondary plant metabolic intermediates that exhibit a wide variety of antioxidant and human health-related properties. Plant production of flavonoids is limited by the low productivity and the complexity of the recovered flavonoids. Thus to overcome these limitations, metabolic engineering of...
journal article 2012
document
Van Rossum, H.M. (author), Kozak, B.U. (author), Pronk, J.T. (author), Van Maris, A.J.A. (author)
Saccharomyces cerevisiae is an important industrial cell factory and an attractive experimental model for evaluating novel metabolic engineering strategies. Many current and potential products of this yeast require acetyl coenzyme A (acetyl-CoA) as a precursor and pathways towards these products are generally expressed in its cytosol. The native...
journal article 2016
document
Guadalupe-Medina, V. (author), Wisselink, H.W. (author), Luttik, M.A.H. (author), De Hulster, E. (author), Daran, J.M. (author), Pronk, J.T. (author), Van Maris, A.J.A. (author)
Background Redox-cofactor balancing constrains product yields in anaerobic fermentation processes. This challenge is exemplified by the formation of glycerol as major by-product in yeast-based bioethanol production, which is a direct consequence of the need to reoxidize excess NADH and causes a loss of conversion efficiency. Enabling the use of...
journal article 2013
document
Kozak, B.U. (author), Van Rossum, H.M. (author), Benjamin, K.R. (author), Wu, L. (author), Daran, J.G. (author), Pronk, J.T. (author), Van Maris, A.J.A. (author)
Cytosolic acetyl-coenzyme A is a precursor for many biotechnologically relevant compounds produced by Saccharomyces cerevisiae. In this yeast, cytosolic acetyl-CoA synthesis and growth strictly depend on expression of either the Acs1 or Acs2 isoenzyme of acetyl-CoA synthetase (ACS). Since hydrolysis of ATP to AMP and pyrophosphate in the ACS...
journal article 2013
document
Van Maris, A.J.A. (author), Abbott, D.A. (author), Bellissimi, E. (author), Van den Brink, J. (author), Kuyper, M. (author), Lutik, M.A.H. (author), Wisselink, H.W. (author), Scheffers, W.A. (author), Van Dijken, J.P. (author), Pronk, J.T. (author)
journal article 2006
document
Van Maris, A.J.A. (author), Winkler, A.A. (author), Kuyper, M. (author), De Laat, W.T. (author), Van Dijken, J.P. (author), Pronk, J.T. (author)
Metabolic engineering of Saccharomyces cerevisiae for ethanol production from d-xylose, an abundant sugar in plant biomass hydrolysates, has been pursued vigorously for the past 15 years. Whereas wild-type S. cerevisiae cannot ferment d-xylose, the ketoisomer d-xylulose can be metabolised slowly. Conversion of d-xylose into d-xylulose is...
journal article 2007
document
Abbott, D.A. (author), Suir, E. (author), Duong, G.H. (author), De Hulster, E. (author), Pronk, J.T. (author), Van Maris, A.J.A. (author)
Industrial production of lactic acid with the current pyruvate decarboxylase-negative Saccharomyces cerevisiae strains requires aeration to allow for respiratory generation of ATP to facilitate growth and, even under nongrowing conditions, cellular maintenance. In the current study, we observed an inhibition of aerobic growth in the presence of...
journal article 2009
document
Huisjes, E.H. (author), De Hulster, E. (author), Van Dam, J.C. (author), Pronk, J.T. (author), Van Maris, A.J.A. (author)
The efficient fermentation of mixed substrates is essential for the microbial conversion of second-generation feedstocks, including pectin-rich waste streams such as citrus peel and sugar beet pulp. Galacturonic acid is a major constituent of hydrolysates of these pectin-rich materials. The yeast Saccharomyces cerevisiae, the main producer of...
journal article 2012
document
Zelle, R.M. (author), De Hulster, E. (author), Kloezen, W. (author), Pronk, J.T. (author), Van Maris, A.J.A. (author)
A recent effort to improve malic acid production by Saccharomyces cerevisiae by means of metabolic engineering resulted in a strain that produced up to 59 g liter?1 of malate at a yield of 0.42 mol (mol glucose)?1 in calcium carbonate-buffered shake flask cultures. With shake flasks, process parameters that are important for scaling up this...
journal article 2009
document
Wisselink, H.W. (author), Toirkens, M.J. (author), Wu, Q. (author), Pronk, J.T. (author), Van Maris, A.J.A. (author)
Lignocellulosic feedstocks are thought to have great economic and environmental significance for future biotechnological production processes. For cost-effective and efficient industrial processes, complete and fast conversion of all sugars derived from these feedstocks is required. Hence, simultaneous or fast sequential fermentation of sugars...
journal article 2008
document
Zelle, R.M. (author), Trueheart, J. (author), Harrison, J.C. (author), Pronk, J.T. (author), Van Maris, A.J.A. (author)
Pyruvate carboxylase is the sole anaplerotic enzyme in glucose-grown cultures of wild-type Saccharomyces cerevisiae. Pyruvate carboxylase-negative (Pyc–) S. cerevisiae strains cannot grow on glucose unless media are supplemented with C4 compounds, such as aspartic acid. In several succinate-producing prokaryotes, phosphoenolpyruvate...
journal article 2010
document
Oud, B. (author), Flores, C.L. (author), Gancedo, C. (author), Zhang, X. (author), Trueheart, J. (author), Daran, J.M. (author), Pronk, J.T. (author), Van Maris, A.J.A. (author)
Background Pyruvate-decarboxylase negative (Pdc-) strains of Saccharomyces cerevisiae combine the robustness and high glycolytic capacity of this yeast with the absence of alcoholic fermentation. This makes Pdc-S. cerevisiae an interesting platform for efficient conversion of glucose towards pyruvate-derived products without formation of ethanol...
journal article 2012
document
Zelle, R.M. (author), De Hulster, E. (author), Van Winden, W.A. (author), De Waard, P. (author), Dijkema, C. (author), Winkler, A.A. (author), Geertman, J.M. (author), Van Dijken, J.P. (author), Pronk, J.T. (author), Van Maris, A.J.A. (author)
Malic acid is a potential biomass-derivable "building block" for chemical synthesis. Since wild-type Saccharomyces cerevisiae strains produce only low levels of malate, metabolic engineering is required to achieve efficient malate production with this yeast. A promising pathway for malate production from glucose proceeds via carboxylation of...
journal article 2008
document
Medina, V.G. (author), Almering, M.J.H. (author), Van Maris, A.J.A. (author), Pronk, J.T. (author)
In anaerobic cultures of wild-type Saccharomyces cerevisiae, glycerol production is essential to reoxidize NADH produced in biosynthetic processes. Consequently, glycerol is a major by-product during anaerobic production of ethanol by S. cerevisiae, the single largest fermentation process in industrial biotechnology. The present study...
journal article 2009
document
Wisselink, H.W. (author), Toirkens, M.J. (author), Del Rosario Franco Berriel, M. (author), Winkler, A.A. (author), Van Dijken, J.P. (author), Pronk, J.T. (author), Van Maris, A.J.A. (author)
For cost-effective and efficient ethanol production from lignocellulosic fractions of plant biomass, the conversion of not only major constituents, such as glucose and xylose, but also less predominant sugars, such as L-arabinose, is required. Wild-type strains of Saccharomyces cerevisiae, the organism used in industrial ethanol production,...
journal article 2007
document
Abbott, D.A. (author), Zelle, R.M. (author), Pronk, J.T. (author), Van Maris, A.J.A. (author)
To meet the demands of future generations for chemicals and energy and to reduce the environmental footprint of the chemical industry, alternatives for petrochemistry are required. Microbial conversion of renewable feedstocks has a huge potential for cleaner, sustainable industrial production of fuels and chemicals. Microbial production of...
journal article 2009
document
Kozak, B.U. (author), Van Rossum, H.M. (author), Luttik, M.A.H. (author), Akeroyd, M. (author), Benjamin, K.R. (author), Wu, L. (author), De Vries, S. (author), Daran, J.M. (author), Pronk, J.T. (author), Van Maris, A.J.A. (author)
The energetic (ATP) cost of biochemical pathways critically determines the maximum yield of metabolites of vital or commercial relevance. Cytosolic acetyl coenzyme A (acetyl-CoA) is a key precursor for biosynthesis in eukaryotes and for many industrially relevant product pathways that have been introduced into Saccharomyces cerevisiae, such as...
journal article 2014
Searched for:
(1 - 20 of 34)

Pages