Study on the Active Carbon for Absorbing Amino Acids in Static State from Tobacco Waste Hydrolysates

In order to enhance utilization efficiency of tobacco, the amino acid was produced by HCl hydrolysis from tobacco waste, and the amino acids solution was decolored by activated carbon. The absorption capacity of 16 amino acids and the decoloration of tobacco waste hydrolysates by different activated carbon modified were investigated. The results showed that the optimum technology was as follow: the quantity of active carbon (with 0.25% KOH) 2.5 %, temperature 20 ℃, pH 10.0, time 20 min. The yield of amino acids was 79.14 %, the decolorizing rate was 83.89% and the yield of total amino acids, Tyr, His, Lys, Ile and Leu had been improved greatly.