摘要
利用稀土元素对隐甲藻的生长和产DHA的影响进行研究。结果表明:低浓度时,La3+、Nd3+对隐甲藻的生物量和DHA产量均有显著提高,细胞增大;Ce3+提高了脂质DHA含量;Sm3+影响不大;高浓度时均抑制生长和DHA合成。La3+、Ce3+配合使用明显提高DHA产量,培养基中添加Ce3+、La3+分别为6mg/L和24mg/L时,可使DHA含量达到(1194.17±1.09)mg/L,提高了33.35%±0.09%。
Effects of rare earth elements on growth and DHA production of Crypthecodinium.cohnii were studied. Results showed that in low concentration, La3＋ , Nd3＋ obviously improved biomass and DHA yield, cells became bigger,Ce3＋ increased content of DHA in lipids,Sm3＋ had little impact.But they a yield in higher concentration.The combination of La3＋ and Ce3＋ could increase DHA DHA yield of （ 1194.17 ± 1.09） mg/L was observed with 6mg/L Ce3 ＋ and 24mg/L La3 ＋ , nhibited the growth and DHA yield evidently.The maximum increased by 33.35% _＋0.09%.
出处
《食品工业科技》
CAS
CSCD
北大核心
2011年第7期157-159,共3页
Science and Technology of Food Industry
关键词
隐甲藻
DHA
稀土元素
Crypthecodinium. cohnii
DHA
rare earth elements
