Student written Research Laboratory Guidebook 2023Nagaoka University of Technology

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Laboratory of Applied and Environmental Microbiology

Associate Professor / Daisuke KASAI

Associate ProfessorDaisuke KASAI

profiles and activiities profiles and activiities at nagaoka university of technology
  • Using microorganisms to change the global environment
  • Development new microorgrams aimed at reducting environmental impact
  • Pursuit future prospects of microorgrams


Associate Professor / Daisuke KASAI
The assoc. prof. KASAI is emerging and very dedicated researcher. He explains and advises our questions carefully one by one. He also sometimes helps us by conducting experiments himself. Shall you try with him to discover new advances in environmental microbiology?

Research Content

We are mainly researching on "rubber-utilizing bacteria" and "biodegradable plastic-biosynthetic bacteria" to solve the problems related to waste rubber and petroleum plastics, which are one of the causes of environmental pollution. These research include the creation of artificial mutations using PCR, cloning, and genetic recombination, and the analysis of degradants and biosynthetic substances using gas chromatography (GC) and gel permeation chromatography (GPC). Our goal is that the results of our research will contribute to the maintenance of the global environment, which faces a variety of problems.

Inside our laboratory

A Day in the Lab

Our lab day starts at 10:30 a.m. and ends at 3:30 p.m. Each experiment can be performed freely during the allotted time, and if there is extra time, students can help with other experiments or search for papers related to their research. The results of each experiment are presented in a group discussion, and with the advice of Dr. Kasai and senior students, the students move on to the next step. If you are interested in microorganisms and experiments with them, join us.

A member who are experimenting

Thesis Subjects

  • (M)Creation and functional analysis of mutant strains with enhanced productivity of biodegradable biomass plastic
  • (M)Elucidation of poly(cis-1,4-isoprene) degrading genes in natural rubber-degrading bacteria

The number of
PhD Graduates


Major employers of Graduates

  • Kyowa Kako Corporation
  • Bourbon Corporation
  • The Yokohama Rubber Corporation
Writer : Yukimura KAWAGIWA, Materials Science and Engineering/Bioengineering
(National Institute of Technology, Suzuka College)