Assessment of light intensity and salinity regimes on the element levels of brown macroalgae, Treptacantha barbata: Application of response surface methodology (RSM)

In this research, the effect of light intensity and salinity regimes on element levels Treptacantha barbata (formerly Cystoseira barbata) was studied, elemental compositions brown alga collected from wild stocks also compared with cultured ones. culture trials, 11 different experiments that have ranges as 50 to 150 µmol photon m-2s-1 24 ‰ 42 were designed according response surface methodology (RSM). Our results show accumulation changes T. modeled. Most elements affected by instead intensity. All macro microelements detected within recommended dosages exposure limits. toxic elements, least accumulations Al, As, Cd, Pb observed in low salinity. Also, all including trace exceed limits, can be reduced using these models. The most effective experiment found 52.0001 24.086 for minimized 0.869 desirability.