Pollution Abatement of Heavy Metals in Different Conditions by Water Kefir Grains as a Protective Tool against Toxicity

Figure 4

Cr, Cu, Ni, and Pb concentration as a function of time in absence and presence of sucrose (5%) for Colonies 1 and 2. Conditions: 5·10^–3 M citrate buffer, initial pH = 3.5, 4.5, and 6.1, and 1 : 10 Water Kefir/metal solution ratio. Left: absence of sucrose. Right: presence of sucrose. .

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)