On the other hand, the maximum value of soluble carbohydrates content reached to 101 % of that the control cultures, when the algal cultures treated with 200 ppm thiamine and subjected to 1.5 ppm MgCl2. Also, the maximum values of insoluble and total carbohydrate were 86 % and 83 % of that the
control cultures, when the algal cultures subjected to 3 ppm MgCl2 and treatment
with 200 ppm thiamine, respectively (Table 1-c).