Open AccessThe effect of metal ion Cd(II) concentration on the growth of Spirulina sp. cultured on BG-11 medium
Author(s) -
Risfidian Mohadi,
Susilawati Susilawati,
Helpi Mavala,
Hilda Zulkifli
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/530/1/012036
Subject(s) - spirulina (dietary supplement) , growth rate , metal , zoology , food science , chemistry , nuclear chemistry , biology , raw material , geometry , mathematics , organic chemistry
Research on the growth rate of Spirulina sp. carried out in BG-11 medium with UV light intensity of 3000 lux and a temperature of 25 ˚C with the addition of metal ion Cd(II) concentration was carried out. An initial abundance of Spirulina sp. in the medium is 10.10 3 ind./L with the concentrations of Cd(II) added to the culture medium of 0, 1, 3, and 5 mg/L, respectively. Spirulina sp. growth rate in the control media continued to increase until the exponential phase on the seventh day with growth rate of growth rate of 4.3×10 3 ind/L/day, while the medium with the addition of Cd(II) with concentrations of 1, 3, and 5 mg/L experienced a decrease in growth rate of 3.9×10 3 ind/L/day, 3.8×10 3 ind/L/day, and 0.07×10 3 ind/L/day, respectively. The concentration of Cd(II) 5 mg/L in the culture medium of Spirulina sp. decreased the growth significantly. So that it can be concluded the potential use of Spirulina sp. as an adsorbent of Cd(II) metal can be effective at concentrations up to 3 mg/L.