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Effects of static magnetic field on Chlorella vulgaris : growth and extracellular polysaccharide (EPS) production
Journal of Applied Phycology ( IF 3.3 ) Pub Date : 2020-06-19 , DOI: 10.1007/s10811-020-02164-7
Xin Luo , Hao Zhang , Qi Li , Jibiao Zhang

In this study, Chlorella vulgaris treated with static magnetic field (SMF) was investigated in terms of the algal density, biomass, extracellular polysaccharide content and distribution, percentage of algal aggregation, total protein content, enzyme activity, malondialdehyde content, and nutrient removal. The algal density and biomass under 800 G SMF were highest on the 16th day and were 29.02% and 35.67% greater than the control group (0 G group), respectively. Soluble EPS decreased with an increase in magnetic field strength, while bound EPS exhibited an opposite trend. Algal aggregation occurred in all treatment groups, with the aggregation percentage in the high magnetic field-treated groups being lower than that in the control group. Total protein content of the 800 G group was the lowest at 1.13 μg (106 cells)-1 and the enzyme activity of treated algae was higher than that of the control group. SMF affected the growth and reproduction of C. vulgaris by affecting the antioxidant response.



中文翻译:

静磁场对小球藻的影响:生长和细胞外多糖(EPS)的产生

在这项研究中,以藻类密度,生物量,细胞外多糖含量和分布,藻类聚集百分比,总蛋白含量,酶活性,丙二醛含量和营养去除率研究了经静磁场(SMF)处理的小球藻。800 G SMF下的藻类密度和生物量在第16天最高,分别比对照组(0 G组)高29.02%和35.67%。可溶性EPS随着磁场强度的增加而降低,而结合的EPS呈现相反的趋势。在所有处理组中均发生藻类聚集,在强磁场处理组中聚集率低于对照组。800 G组的总蛋白质含量最低,为1.13μg(106个细胞-1),处理后的藻类的酶活性高于对照组。SMF通过影响抗氧化剂的反应来影响寻常念珠菌的生长和繁殖。

更新日期:2020-06-22
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