Randy K. Dumas,1 Thomas Gredig,2,3 Chang-Peng Li,2,* Ivan K. Schuller,2 and Kai Liu1,† 1Department of Physics, University of California, Davis, California 95616, USA 2Department of Physics, University of California–San Diego, La Jolla, California 92093, USA 3Department of Physics and Astronomy, California State University, Long Beach, California 90840, USA Received 18 December 2008; revised man...

Beta-galactosidase (EC 3.2.1.23), has tremendous potential in research and application in various fields like food, bioremediation, biosensor, diagnosis and treatment of disorders. The main objective of this study was to isolate and select some yeast strains able to produce βgalactosidase from locally dairy products, the high producer strain coded DIYS 11 was belong to Kluyveromyces marxianus a...

The search of robust microorganisms is essential to design sustainable processes of second generation bioethanol. Yeast strains isolated from industrial environments are generally recognised to present an increased stress tolerance but no specific information is available on their tolerance towards inhibitors that come from the pretreatment of lignocellulosic materials. In this work, a strategy...

Regulation of transport of D-glucose and D-fructose was studied in Kluyveromyces marxianus grown in continuous culture. Both substrates could be transported by at least two different transport systems, low-affinity transport and high-affinity proton-sugar symport. The low-affinity transporter, specific for both glucose and fructose, was constitutively present and was apparently not regulated by...

Alcohol fermentation of lactose was investigated using a recombinant flocculating Saccharomyces cerevisiae, expressing the LAC4 (coding for beta-galactosidase) and LAC12 (coding for lactose permease) genes of Kluyveromyces marxianus. Data on yeast fermentation and growth on a medium containing lactose as the sole carbon source are presented. In the range of studied lactose concentrations, total...