Investigation of the physicochemical properties of microcrystalline cellulose from agricultural wastes I: orange mesocarp

Abstract

Orange mesocarp was obtained after removal of the epicarp and the endocarp from oranges. It was dried, pulverized and digested with 2% w/v sodium hydroxide at 80°C for 3 h. Alphaand micro-crystalline celluloses were extracted from the pulp using 17.5% w/v and 2.5 N hydrochloric acid, respectively. The physicochemical and powder properties of the extracted material were evaluated. Results obtained showed that the yield of a-cellulose from the orange mesocarp was 62.5% and that of microcrystalline cellulose 25.3%. The total watersoluble substances were 0.0018 g/g, ash 0.00035 g/g and the true density 1.760 g cm À1 , while the pH and hydration capacity are 6.61 and 2.916, respectively. Elemental analysis of the cellulose ash shows the absence of Pb and Mn and the preponderance of K, Na and Fe. The water sorption profile of the microcrystalline cellulose was also studied.

Microcrystalline Cellulose from Plant Wastes through Sodium Hydroxide-Anthraquinone-Ethanol Pulping

“…Thus, addition of a glidant would be needed when using these materials in solid dosage production processes. The flowability results recorded here was not in isolation, as other authors had reported similar values for various prepared MCC (Ohwoavworhua and Adelakun 2005;Bhimte and Tayade 2007;Ejikeme 2008).…”

Bio polyetherurethane composites with high content of natural ingredients: hydroxylated soybean oil based polyol, bio glycol and microcrystalline cellulose

“…MCC is a pure and partially depolymerized form of native cellulose, which occurs as white crystalline powder without odor and taste, characterized by porous particles. Cellulose is a carbohydrate consisting of 1,4-b-D-glucose monomers (Chen et al 2014;Azubuike and Okhamafe 2012;Hatakeyama et al2012;Oyeniyi and Itiola 2012;Kiziltas et al 2011;Ejikeme 2008).…”

Preparation of Microcrystalline Cellulose by Liquefaction of Eucalyptus Sawdust in Ethylene Glycol Catalyzed by Acidic Ionic Liquid

“…Moreover, different methods have been employed to isolate MCC from lignocelluloses. Ejikeme (2008) isolated MCC from orange mesocarp by pulping it with sodium hydroxide, which was then bleached with sodium hypochlorite and hydrogen peroxide, and that mixture was subsequently hydrolyzed with hydrochloric acid. Wang et al (2009) isolated MCC from jute fiber by mercerizing it with sodium hydroxide, then steam treating it with hydrochloric acid, and subsequently treating it with NaOH.…”