Amount of Algae (g)   Alga grown in normal medium Alga grown in normal medium with 10 times enhanced microelement content Mo(VI) Spirulina p. 40.74 6.47   Chlorella v. 59.51 24.81 Zu2+ Spirulina p. 172.13 47.71   Chlorella v. 54.37 5.95 Cu2+ Spirulina p. 20.94 20.01   Chlorella v. 18.10 2.04 Fe3+ Spirulina p. 6.99 3.10   Chlorella v. 31.69 2.66

Table 5: Amount of algae necessary for intzake of 15% of RDA of 4 microelements.