Screening of marine microalgae for bioremediation of cadmium-polluted seawater

被引：94

作者：

Matsunaga, T ^{[1
]}

Takeyama, H ^{[1
]}

Nakao, T ^{[1
]}

Yamazawa, A ^{[1
]}

机构：

[1] Tokyo Univ Agr & Technol, Dept Biotechnol, Koganei, Tokyo 1848588, Japan

来源：

JOURNAL OF BIOTECHNOLOGY | 1999年 / 70卷 / 1-3期

关键词：

bioremediation; cadmium; screening; marine microalgae; marine Chlorella; adsorption;

D O I：

10.1016/S0168-1656(99)00055-3

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

Twenty four strains out of 191 marine microalgal strains exhibited cadmium (Cd) resistance. They were tested for their Cd removal ability in growth media containing 50 mu M Cd. Six strains out of 19 green algae and one out of five cyanobacteria removed more than 10% of total Cd from the medium. The marine green alga Chlorella sp. NKG16014 showed the highest removal of Cd 48.7% of total. Cd removal by NKG16014 was further quantitatively evaluated by measuring the amount of cell adsorption and intracellular accumulation. After 12 days incubation, 67% of the removed Cd was accumulated intracellularly and 25% of the Cd removed was adsorbed on the algal cell surface. The maximum Cd adsorption (q(max)) was estimated to be 37.0 mg Cd (g dry cells)(-1) using the Langmuir sorption model. The Cd removal by freeze-dried NKG16014 cells was also determined. Cd was more quickly adsorbed by dried cells than that by living cells, with a q(max) of 91.0 mg Cd (g dry cells)(-1). (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：33 / 38

页数：6

共 23 条

[1]

Eppley RW., 1967, J Exp Mar Biol Ecol, V1, P191, DOI [10.1016/0022-0981(67)90014-7, DOI 10.1016/0022-0981(67)90014-7]

[2]

FOUREST E, 1994, FEMS MICROBIOL REV, V14, P325

[3] HEAVY-METAL BIOSORPTION BY FUNGAL MYCELIAL BY-PRODUCTS - MECHANISMS AND INFLUENCE OF PH [J].

FOUREST, E ;

ROUX, JC .

APPLIED MICROBIOLOGY AND BIOTECHNOLOGY, 1992, 37 (03) :399-403

[4] SORPTION OF CADMIUM BY THE GREEN MICROALGAE CHLORELLA-VULGARIS, ANKISTRODESMUS-BRAUNII AND EREMOSPHAERA-VIRIDIS [J].

GEISWEID, HJ ;

URBACH, W .

ZEITSCHRIFT FUR PFLANZENPHYSIOLOGIE, 1983, 109 (02) :127-141

[5] BIOSORPTION OF CADMIUM BY BIOMASS OF MARINE-ALGAE [J].

HOLAN, ZR ;

VOLESKY, B ;

PRASETYO, I .

BIOTECHNOLOGY AND BIOENGINEERING, 1993, 41 (08) :819-825

[6] ACCUMULATION OF CADMIUM, LEAD, AND NICKEL BY FUNGAL AND WOOD BIOSORBENTS [J].

HOLAN, ZR ;

VOLESKY, B .

APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY, 1995, 53 (02) :133-146

[7] Removal of cadmium from aqueous solution by the filamentous cyanobacterium Tolypothrix tenuis [J].

Inthorn, D ;

Nagase, H ;

Isaji, Y ;

Hirata, K ;

Miyamoto, K .

JOURNAL OF FERMENTATION AND BIOENGINEERING, 1996, 82 (06) :580-584

[8] ACCUMULATION OF HEAVY-METALS IN UNICELLULAR ALGAE [J].

KHUMMONGKOL, D ;

CANTERFORD, GS ;

FRYER, C .

BIOTECHNOLOGY AND BIOENGINEERING, 1982, 24 (12) :2643-2660

[9] CHARACTERIZATION AND OPTIMIZATION OF HYDROGEN PHOTOPRODUCTION BY A SALTWATER BLUE-GREEN-ALGA, OSCILLATORIA SP MIAMI BG7 .1. ENHANCEMENT THROUGH LIMITING THE SUPPLY OF NITROGEN NUTRIENTS [J].

KUMAZAWA, S ;

MITSUI, A .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 1981, 6 (04) :339-348

[10] THE ADSORPTION OF GASES ON PLANE SURFACES OF GLASS, MICA AND PLATINUM. [J].

Langmuir, Irving .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1918, 40 :1361-1403

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