To date, heavy metals present a main drawback for bioelectrochemical systems (BESs) performances. Therefore, our results confirm, the first time, that Hansenulafabianii is an electrochemical active yeast has potential tolerance against various metals. The bioreactor inoculated by Hansenula fabianii in mediatoless conditions provided maximum current density of 32 mA/m²; up to 300 mA/m² in pr...

BACKGROUND AND OBJECTIVES During past decades Hansenula polymorpha has attracted global attention for the expression of recombinant proteins due to its high growth rate, minimal nutritional porequirements and use of methanol as a low cost inducer. MATERIALS AND METHODS The corresponding nucleotide sequences for the expression of heterologous genes in Hansenula poylmorpha were extracted and as...

background and objectives: during past decades hansenula polymorpha has attracted global attention for the expression of recombinant proteins due to its high growth rate, minimal nutritional porequirements and use of methanol as a low cost inducer. materials and methods: the corresponding nucleotide sequences for the expression of heterologous genes in hansenula poylmorpha were extracted and as...

Some time ago, we isolated a Hansenula culture , Ac 12, which Wickerham identified as a strain of H. californica.

Bioconversion of cellulosic material into bioethanol needs cellulase complex enzymesthat contain endoglucanase, exoglucanase and beta glucosidase. One of the most important organisms that produce cellulases is the filamentous fungi, Trichoderma reesei which able to secrete large amounts of different cellulases. These enzymes are probably the most widely used cellulases industrially, however, th...

phytic acid is the dominant form of phosphorous in plant seeds. however, phytic acid cannot beutilized by animals and causes them serious phosphate deficiency. utilization of phytase as ananimal feed additive can affect liberation of phosphor and its mineral availability. in this study,heterologous expression of the a. niger phya gene was investigated in the methylotrophic yeastsp. pastoris and...

A nitroalkane-oxidizing enzyme was purified to homogeneity from Neurospora crassa. The enzyme is composed of two subunits; the molecular weight of each subunit is approximately 40,000. The enzyme catalyzes the oxidation of nitroalkanes to produce the corresponding carbonyl compounds. It acts on 2-nitropropane better than on nitroethane and 1-nitropropane, and anionic forms of nitroalkanes are m...

A procedure has been devised by which large numbers of ascospore isolates may be obtained from yeasts without the use of a micromanipulator and auxiliary costly laboratory equipment or a need for the exacting skills which such tools require. The procedure is being continually applied in this laboratory to the genus Hansenula. Some of the species of this genus produce many ascospores, but so few...