Abstract: An object of the present invention is to obtain fermentative yeast having highly efficient ethanol production without introducing a foreign gene. A further object is to obtain a fermentative yeast that is resistant to proliferation inhibitors such as organic acids, which prevent the proliferation of the fermentative yeast. Meyerozyma guilliermondii that can produce ethanol effectively from pentose and hexose was isolated by breeding. Moreover, resistance was imparted to the fermentative yeast by introducing transaldolase and alcohol dehydrogenase genes derived from Meyerozyma guilliermondii into the fermentative yeast.

Abstract: An object of the present invention is to obtain a fermentative yeast having a highly efficient ethanol production without introducing a foreign gene. A further object is to obtain a fermentative yeast that is resistant to proliferation inhibitors such as organic acids, which prevent the proliferation of the fermentative yeast. A yeast having an improved ethanol production ability was generated by introducing transaldolase and alcohol dehydrogenase genes by self-cloning to Meyerozyma guilliermondii that can produce ethanol effectively from pentose and hexose obtained by breeding, and further breeding the resultant yeast.

Abstract: An object of the present invention is to obtain a fermentative yeast having a highly efficient ethanol production without introducing a foreign gene. A further object is to obtain a fermentative yeast that is resistant to proliferation inhibitors such as organic acids, which prevent the growth of the fermentative yeast. Yeast having improved ethanol production ability was generated by introducing transaldolase and alcohol dehydrogenase gene by self-cloning to Meyerozyma guilliermondii that can produce ethanol effectively from pentose and hexose obtained by breeding. This fermentative yeast is deposited to NITE Patent Microorganisms Depositary under the accession number NITE ABP-01976.

Abstract: Provided is a highly efficient ethanol-fermentative yeast having high efficiency in ethanol production without introducing a foreign gene. The highly efficient ethanol-fermentative yeast is a fermentative yeast that effectively produces ethanol from pentose and hexose and is deposited to NITE Patent Microorganisms Depositary under the accession number NITE BP-01962.

Abstract: A highly efficient ethanol-fermentative yeast having high efficiency in ethanol production is provided without introducing a foreign gene. The highly efficient ethanol-fermentative yeast features a fermentative yeast effectively producing ethanol from pentose and hexose and being deposited to NITE Patent Microorganisms Depositary under the accession number NITE BP-01963.

Abstract: An object of the present invention is to obtain fermentative yeast having highly efficient ethanol production without introducing a foreign gene. A further object is to obtain a fermentative yeast that is resistant to proliferation inhibitors such as organic acids, which prevent the proliferation of the fermentative yeast. Meyerozyma guilliermondii that can produce ethanol effectively from pentose and hexose was isolated by breeding. Moreover, resistance was imparted to the fermentative yeast by introducing transaldolase and alcohol dehydrogenase genes derived from Meyerozyma guilliermondii into the fermentative yeast.

Abstract: A highly efficient ethanol-fermentative yeast having high efficiency in ethanol production is provided without introducing a foreign gene. The highly efficient ethanol-fermentative yeast features a fermentative yeast effectively producing ethanol from pentose and hexose and being deposited to NITE Patent Microorganisms Depositary under the accession number NITE BP-01963.

Abstract: An object of the present invention is to obtain a fermentative yeast having a highly efficient ethanol production without introducing a foreign gene. A further object is to obtain a fermentative yeast that is resistant to proliferation inhibitors such as organic acids, which prevent the growth of the fermentative yeast. Yeast having improved ethanol production ability was generated by introducing transaldolase and alcohol dehydrogenase gene by self-cloning to Meyerozyma guilliermondii that can produce ethanol effectively from pentose and hexose obtained by breeding. This fermentative yeast is deposited to NITE Patent Microorganisms Depositary under the accession number NITE ABP-01976.

Abstract: Provided is a highly efficient ethanol-fermentative yeast having high efficiency in ethanol production without introducing a foreign gene. The highly efficient ethanol-fermentative yeast is a fermentative yeast that effectively produces ethanol from pentose and hexose and is deposited to NITE Patent Microorganisms Depositary under the accession number NITE BP-01962.

Abstract: An object of the present invention is to obtain a fermentative yeast having a highly efficient ethanol production without introducing a foreign gene. A further object is to obtain a fermentative yeast that is resistant to proliferation inhibitors such as organic acids, which prevent the proliferation of the fermentative yeast. A yeast having an improved ethanol production ability was generated by introducing transaldolase and alcohol dehydrogenase genes by self-cloning to Meyerozyma guilliermondii that can produce ethanol effectively from pentose and hexose obtained by breeding, and further breeding the resultant yeast.

Abstract: The present invention provides a growth method for a microbe which can enhance the growth of the microbe without removing growth inhibitors from a saccharified solution. The growth method for a microbe comprises the steps of: obtaining a mixed saccharified solution by diluting the saccharified solution containing a growth inhibitor which inhibits the growth of the microbe with a sugar solution having a smaller growth inhibitor concentration than that of the saccharified solution such that the growth inhibitor concentration is decreased; and allowing the microbe to grow by adding the microbe to the mixed saccharified solution.

Abstract: The present invention provides a growth method for a microbe which can enhance the growth of the microbe without removing growth inhibitors from a saccharified solution. The growth method for a microbe comprises the steps of: obtaining a mixed saccharified solution by diluting the saccharified solution containing a growth inhibitor which inhibits the growth of the microbe with a sugar solution having a smaller growth inhibitor concentration than that of the saccharified solution such that the growth inhibitor concentration is decreased; and allowing the microbe to grow by adding the microbe to the mixed saccharified solution.

Abstract: In SSF, a highly efficient process for producing bioethanol is provided. Concentrations of an organic acid formed in a saccharified solution are measured from the initiation to completion of the saccharification, an average change rate of the organic acid concentrations is determined based on the organic acid concentration levels at respective time points, and the optimal timing of feeding a fermentative microorganism cell to the saccharified solution is determined using the average change rate as the indicator, whereby the fermentative microorganism cell is fed.

Abstract: The present invention provides a method for measuring thermal conductivity of a material at a stationary state at an elevated temperature T.

Abstract: There is provided by the present invention an apparatus for measuring thermal conductivity. The apparatus is mainly composed of (a) a container adiabatically enclosing an inner space, (b) a heat source for heating a first surface of a specimen to be placed to divide the inner surface into a first space and a second space; (c) a first thermometer to measure the temperature of the first surface of the specimen; (d) a heat-flow-measuring means disposed in contact with the second surface of the specimen, for maintaining the temperature of the second surface of the specimen at a predetermined temperature and for measuring the thermal energy flowing through the second surface; and (e) a second thermometer for measuring the temperature of the second surface of the specimen.