Cellulose Extraction from Pomelo Peel: Synthesis of Carboxymethyl Cellulose

Authors: J. Chumee, D. Seeburin

Abstract:

The cellulose was extracted from pomelo peel and an etherification reaction used for converting cellulose to carboxymethyl cellulose (CMC). The pomelo peel was refluxed with 0.5 M HCl and 1 M NaOH solution at 90°C for 1 h and 2 h, respectively. The cellulose was bleached with calcium hypochlorite and used as precursor. The precursor was soaked in mixed solution between isopropyl alcohol and 40%w/v NaOH for 12 h. After that, chloroacetic acid was added and reacted at 55°C for 6 h. The optimum condition was 5 g of cellulose: 0.25 mole of NaOH : 0.07 mole of ClCH2COOH with 78.00% of yield. Moreover, the product had 0.54 of degree of substitution (DS).

Keywords: Pomelo peel, Carboxymethyl cellulose, Cellulose.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1092854

References:

[1] B. H. Hameed, D. K. Mahmoud and A. L. Ahmad "Sorption of basic dye from aqueous solution by pomelo” Colloids and Surfaces A: Physicochem. Eng. Aspects, vol. 316, Mar. 2008, pp. 78–84.
[2] P. Methacanon, J. Krongsin and C. Gamonpilas "Pomelo (Citrus maxima) pectin: Effects of extraction parameters and its properties” Food Hydrocolloids, vol. 35, Mar. 2014, pp. 383–391.
[3] W. Xu, N. Reddy and Y. Yang, "Extraction, characterization and potential applications of cellulose in corn kernels and Distillers’ dried grains with solubles (DDGS)”, Carbohydr. Polym., vol. 76, May 2009, pp. 521–527.
[4] X. Hu, K. Hu, L. Zeng, M. Zhao and H. Huang, "Hydrogels prepared from pineapple peel cellulose using ionic liquid and their characterization and primary sodium salicylate release study” Carbohydr. Polym., vol. 82, August 2010, pp. 62–68.
[5] P. Rachtanapun, S. Luangkamin, K. Tanprasert and R. Suriyatem "Carboxymethyl cellulose film from durian rind” LWT - Food Sci. Technol., vol. 48, Sep. 2012, pp. 52–58.
[6] H. Toğrul and N. Arslan "Production of carboxymethyl cellulose from sugar beet pulp cellulose and rheological behaviour of carboxymethyl cellulose” Carbohydr. Polym., vol. 54, Oct. 2003, pp. 73–82.
[7] V. Pushpamalar, S. J. Langford, M. Ahmad and Y.Y. Lim, "Optimization of reaction conditions for preparing carboxymethyl cellulose from sago waste” Carbohydr. Polym., vol. 64, May. 2006, pp. 312–318.