| Influences of Natural Colloid in Seawater on the Growth of a Microalga |
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| 作者姓名： | ZHAOXin－huai LITie－jing |
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| 作者单位： | CollegeofFoodScience,NortheastAgriculturalUniversity,Harbin,Heilongjiang,150030,PRC |
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| 摘 要： | Cooloid concentrates were obtained by employing a cross-flow filtration system to ultrafiltrate seawater(which was pre-filtrated by 0.45 μm acetate cellulose membrane)sucessively with three membranes.The retentions(colloid concentrates)and control sample(in which colloid was removed)were then inoculated with a microalga and cultivated in vitro.After continuously monitoring cell content during cultivation,it was found that colloid had an obvious beneficial effect on the growth of microalga.Although colloids with different sizes influenced microalga‘s growth in different extent and ways,a brief conclusion could be draw from experiments that colloid might be a potential nutrition source for microalga‘s growth.
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| 关 键 词： | 海水 天然胶体 微藻生长 影响 超滤作用 |
Influences of Natural Colloid in Seawater on the Growth of a Microalga |
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| ZHAO Xin-huai,LI Tie-jing.Influences of Natural Colloid in Seawater on the Growth of a Microalga[J].Journal of Northeast Agricultural University,2002,9(2):131-135. |
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| Authors: | ZHAO Xin-huai LI Tie-jing |
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| Abstract: | Colloid concentrates were obtained by employing a cross-flow filtration system to ultrafiltrate seawater(which was pre-filtrated by 0.45 μm acetate cellulose membrane) sucessively with three membranes.The retentions (colloid concentrates) and control sample(in which colloid was removed)were then inoculated with a microalga and cultivated in vitro.After continuously monitoring cell content during cultivation,it was found that colloid had an obvious beneficial effect on the growth of microalga.Although colloids with different sizes influenced microalga's growth in different extent and ways,a brief conclusion could be draw from experiments that colloid might be a potential nutrition source for microalga's growth. |
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| Keywords: | colloid microalga seawater ultrafiltration |
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