Utilization of carbohydrates by radiation processing

Kume, Tamikazu; Nagasawa, Naotsugu*; Yoshii, Fumio

Radiation Physics and Chemistry, 63(3-6), p.625 - 627, 2002/03

https://doi.org/10.1016/S0969-806X(01)00558-8

no abstracts in English

Radiation degradation of chitosan and induction of biological activities

Kume, Tamikazu

Chitin and Chitosan; Chitin and Chitosan in Life Science, p.190 - 193, 2001/00

no abstracts in English

Experimental investigation of activities and tolerance of denitrifying bacteria under alkaline and reducing condition

Mine, Tatsuya*; Mihara, Morihiro;

JNC TN8430 2000-009, 35 Pages, 2000/07

JNC-TN8430-2000-009.pdf:0.88MB

In the geological disposal system of TRU wastes, nitrogen generation by denitrifying bacteria could provide significant impact on the assessment of this system, because nitrate contained in process concentrated liquid waste might be electron acceptor for denitrifying bacteria. In this study, the activities and tolerance of denitrifying bacteria under disposal condition were investigated. pseudomonas denitrificans as denitrifying bacteria was used. The results showed that Pseudomonas denitrificans had activity under reducing condition, but under high pH condition (PH9.5), the activity of Pseudomonas denitrificans was not detected. It is possible that the activity of Pseudomonas denitrificans would be low under disposal condition.

Application of radiation degraded carbohydrates for plants

Kume, Tamikazu; Nagasawa, Naotsugu*; Yoshii, Fumio; Tham, L. X.*; Hien, N. Q.*; Ha, P. T. L.*; Lam, N. D.*

Conference Proceeding RadTech Asia'99, p.475 - 480, 1999/00

no abstracts in English

Radiation degradation of natural polymers

Kume, Tamikazu

Yuki Zairyo Eno Hoshasen Riyo No Shin Tenkai Koen Yoshishu, p.1 - 6, 1998/00

no abstracts in English

Inactivation of microorganisms under frozen condition and its application fields

Ito, Hitoshi

Hoshasen To Sangyo, 0(55), p.37 - 41, 1992/00

no abstracts in English

Immobilization of biofunctional substances

Kaetsu, Isao

Radiation Physics and Chemistry, 18(1-2), p.343 - 356, 1981/00

no abstracts in English

Multidisciplinary investigation on radiocesium fate and transport for safety assessment for interim storage and disposal of heterogeneous waste, 10; Effects of microbial activity on migration of Cs

Onuki, Toshihiko; Sakamoto, Fuminori; Kozai, Naofumi; Yamasaki, Shinya*; Shiotsu, Hiroyuki; Utsunomiya, Satoshi*

no journal, , 

Accumulation of Cs by unicellular fungus of Saccharomyces cerevisiae in the presence of minerals have been studied to elucidate the role of microorganisms in the migration of radioactive Cs in the environment. With carbon source, higher amounts of Cs was accumulated in the cells than in the resting condition without carbon source. In the presence of mineral in the agar medium, the radioactivity in the yeast cells with different minerals were in the order of the inverse of Kd of minerals. These results strongly suggest that the yeast accumulates radioactive Cs competitively with minerals.