光生物反应器和跑道式循环生物反应器对荒漠藻类生物量和多糖产量的影响

采用光生物反应器和跑道式循环生物反应器对荒漠藻类进行规模化培养,对比研究了两种规模化培养系统对荒漠藻类生物量和多糖产量的影响,探讨了温度、酸碱度、生长周期以及氮、磷含量对荒漠藻类生长和多糖积累的作用.结果表明,在光生物反应器和跑道式循环生物反应器两种培养系统中,藻类的生长呈现出不同的变化趋势,而藻多糖含量则呈现相同的波动性变化趋势,并且藻类生物量和多糖分泌受培养条件的影响并不同步.此外,在两种规模化培养模式中,温度、酸碱度、营养盐以及生长周期等都对荒漠藻类的生长和多糖产量产生重要影响.

Effects of Photobioreactors and Raceway Circulating Bioreactor on the Biomass and Polysaccharides Production of Desert Alga

Two different culture appliances,photobioreactor and raceway circulating bioreactor,were used for mass culture of desert alga and the effects of two mass culture systems on the biomass and exopolysaccharidses of desert alga were comparatively studied,and the roles of temperature,pH value,culture time and nitrogen,phosphorus contents in the growth and polysaccharides accumulation of desert alga were simultaneously discussed.The results indicated that in the two mass culture systems from photobioreactor and raceway circulating bioreactor,the growth of desert algapresented different variation trend,but the polysaccharide contents of desert alga had the same fluctuant variation trends.And there were not the synchronous response between the desert algae biomass and the polysaccharide exudation when they suffered the same culture condition in respective culture system.Moreover,it was found that the culture conditions such as temperature,pH,nutrition and growth cycle had an important effects on the growth and polysaccharide production of desert alga.