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Physico-chemical properties and thermal stability of microcrystalline cellulose isolated from Alfa fibres

Abstract : In this study, microcrystalline cellulose (Alfa-MCC) was extracted from Alfa fibres using acid hydrolysis method. The molecular weight of the cellulose samples was determined by gel permeation chromatography. The crystallinities were studied by means of X-ray diffraction and solid state cross polarization magic angle spinning C-13 nuclear magnetic resonance spectroscopy, revealing that Alfa-MCC was more crystalline than the native cellulose isolated from Alfa fibres. The morphology of the celluloses was investigated using scanning electron microscopy, showing a compact structure and a rough surface. Furthermore, a good thermal stability was shown for Alfa-MCC. Based on these analyses, Alfa-MCC showed tremendous potential use as composites reinforcing agent, foods stabilizer and pharmaceutical additive.
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https://hal.univ-lorraine.fr/hal-02994518
Contributor : Riad Benelmir <>
Submitted on : Saturday, November 7, 2020 - 8:04:13 PM
Last modification on : Monday, November 9, 2020 - 2:12:05 PM

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Djalal Trache, André Donnot, Kamel Khimeche, Riad Benelmir, Nicolas Brosse. Physico-chemical properties and thermal stability of microcrystalline cellulose isolated from Alfa fibres. Carbohydrate Polymers, Elsevier, 2014, 104, pp.223-230. ⟨10.1016/j.carbpol.2014.01.058⟩. ⟨hal-02994518⟩

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