Determination of Cellulose,Hemicellulose and Lignin in Apricot Shell
Taking the apricot shell from Yulin city as the research object,in order to accurately determine the mass fraction of its main components(cellulose,hemicellulose and lignin),sulfuric acid and potassium dichromate oxidation method,2 mol·L-1 hydrochloric acid hydrolysis method,and 72%sulfuric acid method were used to determine the three components mentioned above,respectively.By controlling the single factor variable method,the optimal conditions for each method were determined.Under the optimal conditions,the mass fraction of cellulose was 26.10%,the mass fraction of hemicellulose was 33.03%,and the mass fraction of lignin in apricot shell was 31.22%.The apricot shell is rich in cellulose,lignin,and hemicellulose,so it is an important renewable resource.
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