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Luan, L. Q.*; Nagasawa, Naotsugu; Ha, V. T. T.*; Hien, N. Q.*; Nakanishi, Tomoko*
Radiation Physics and Chemistry, 78(9), p.796 - 799, 2009/09
Times Cited Count:15 Percentile:68.94(Chemistry, Physical)Alginate with the weight-average molecular weight () approximately 900 kDa and ratio of M (mannuronate)/G (guluronate) about 1.3 was irradiated by Co-60 in aqueous solution at doses up to 200 kGy. The irradiation dose was shown to be a function for reducing and molecular weight distribution of irradiated alginates. The distribution of oligomer fractions in irradiated products was also investigated by separation using ultrafiltration membranes. The irradiated alginate with approximately 14.2 kDa was found to have a positive influence for growing of barley and soybean. The irradiated oligoalginate fraction with ranging from 1 to 3 kDa displayed the strongest effect on the growth and development of the mentioned plants at low concentration (20 ppm). It is suggested that oligoalginate with in the range 1-3 kDa is a trigger for the growth and development of plants.
Luan, L. Q.; Hien, N. Q.*; Nagasawa, Naotsugu; Kume, Tamikazu; Yoshii, Fumio; Nakanishi, Tomoko*
Biotechnology and Applied Biochemistry, 38(3), p.283 - 288, 2003/12
Times Cited Count:36 Percentile:61.75(Biochemistry & Molecular Biology)no abstracts in English
Hien, N. Q.*; Nagasawa, Naotsugu*; Tham, L. X.*; Yoshii, Fumio; Dang, V. H.*; Mitomo, Hiroshi*; Makuuchi, Keizo; Kume, Tamikazu
Radiation Physics and Chemistry, 59(1), p.97 - 101, 2000/07
Times Cited Count:104 Percentile:98.41(Chemistry, Physical)no abstracts in English
Hien, N. Q.*; Hai, L.*; Luan, L. Q.*; Hanh, T. T. V.*; Nagasawa, Naotsugu; Yoshii, Fumio; Makuuchi, Keizo; Kume, Tamikazu
JAERI-Conf 2000-003, p.94 - 100, 2000/03
no abstracts in English
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
P.T.Ha*; T.T.Thuy*; Hien, N. Q.*; Nagasawa, Naotsugu*; Kume, Tamikazu
Shokuhin Shosha, 34(1-2), p.43 - 46, 1999/00
no abstracts in English