Cadmium and Plumbum Absorption

The hemicellulose and pectin, weighed at 100, 200, and 300 mg. Then each was dissolved into erlenmeyer containing 25 cm solution 30 mg/cm of cadmium in 0.1 N nitric acid and the pH adjusted to acid pH was performed at pH 2. The solution was stirred with a magnetic stirrer at room temperature for 2 h. Then, each was centrifuged at 10,000 rpm for 30 min. The supernatant was taken and diluted with 0.5 to 50 cm aquabidest. Then 0.25 cm of dilution was taken and diluted to 25 cm with aquabidest. The cadmium levels were measured [34]. The cadmium in the supernatant was estimated using flame atomic absorption spectroscopy [Hitachi Analyst 100) at 228.3 nm [23, 32, 34,51]. 

Absorption characteristics between hemicelluloses and pectin are different where hemicelluloses react with plumbum ions. This suggests that the hydroxyl group of the hemicellulose causes attraction of plumbum ions present in solution. Thus, 

The chelating ability of corn cobs hemicellulose, and pectin toward cadmium ion and plumbum is shown in Tables 8.4 and 8.5. The administration of chelating agent to bind distinct cadmium and plumbum in the pH 2 gives different results. From Tables 8.4 and 8.5, it can be seen that there is an influence of the type and weight of chelating agent applied. However, in contrast to pectin, with the addition of pectin, the concentration will also increase properly the strap to cadmium ions [34], 

The profile of chelating effect of corn cobs hemicelluloses and pectin in Figs. 8.4 and 8.5 shows that the weight will increase the ability of the chelating agent to corn cobs hemicellulose and pectin as a whole. Overall, the corn cobs hemicelluloses have 

7 The in vivo Corn Cobs Hemiceiiuiose Testing in Rabbits 

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