Koutaro Ohtsuka

Biodiesel fuel production from plant oil catalyzed by Rhizopus oryzae lipase in a water-containing system without an organic solvent

Masaru Kaieda, Taichi Samukawa, Takeshi Matsumoto et al. · Journal of Bioscience and Bioengineering · 1999 · 303 citations

Chemical Engineering, Biofuel Production, Bioenergy +10

Characterization of Levansucrase from<i>Rahnella aquatilis</i>JCM-1683

Koutaro Ohtsuka, Shiro Hino, Takayuki Fukushima et al. · Bioscience Biotechnology and Biochemistry · 1992 · 77 citations

Biosynthesis, Biochemistry, Biochemical Taxonomy +7

Availability of 4'galactosyllactose (O-.BETA.-D-galactopyranosyl-(1.RAR.4)-O-.BETA.-D-galactopyranosyl-(1.RAR.4)-D-glucopyranose) in rat.

Koutaro Ohtsuka, Keisuke Tsuji, Yasue Nakagawa et al. · Journal of Nutritional Science and Vitaminology · 1990 · 35 citations · Full text

Purification and properties of a β-galactosidase with high galactosyl transfer activity from Cryptococcus laurentii OKN-4

Koutaro Ohtsuka, Akira Tanoh, O. Ozawa et al. · Journal of Fermentation and Bioengineering · 1990 · 34 citations

Biosynthesis, Engineering, Biotransformation +10

Effect of a Small Amount of Galactooligosaccharide on Fecal Bifidobacterium.

Satoshi Tamai, Koutaro Ohtsuka, O. Ozawa et al. · Nippon Eiyo Shokuryo Gakkaishi · 1992 · 13 citations · Full text

Probiotic, Biochemistry, Microbial Physiology +8