2024年3月28日 星期四
盐生隐杆藻胞外多糖含量的影响因子
Several factors influencing exopolysaccharide contents of Aphanothece halophytica
1997年 第6卷 第2期 页码[58-60]    下载全文[0.4MB]  
Abstract

T he effects of culture time , concentration of N aCl , CaCl2 , M gSO4 and pH v alue in medium on the growth and exo polysaccharide contents of Aphanothece halophytica Fremy were determined .The results showed that the alga produced a large amount of exopoly saccharide during the late logarithmic phase .NaCl levels had evident effect on the growth and exopolysaccharide contents.CaCl2 , M gSO4 levels and pH v alue in medium had effects in different degrees.W hen concentration of NaCl, CaCl2 and M gSO 4·7H2O in medium w ere 1 1.5 M , 0.5 g/l , and 5 g/ l respectively , the exopolysaccharide content was twice as much as that produced in the basic medium during the late logarithmic phase .
 

关键词盐生隐杆藻; 胞外多糖
Key wordsAphanothece halophy tica F remy; exo polysaccharide
作者欧 瑜 刘志礼
所在单位南京农业大学理学院生化室, 南京 210095
南京大学生物科学与技术系,南京 210093
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