Chemical composition and thermal analysis of cellulose extracted from senduduk (Melastoma malabathricum L.)

Izathul Shafina Sidek, . and Sarifah Fauziah Syed Draman, . and Siti Rozaimah Sheikh Abdullah, . and Nornizar Anuar, . Chemical composition and thermal analysis of cellulose extracted from senduduk (Melastoma malabathricum L.). pp. 141-150. ISSN 2672-7226

Melastoma malabathricum L. (M. malabathricum) or known locally as senduduk� is a dispersed shrub that can be found growing wildly and abundantly in nature. However there have been limited studies on the chemical composition and utilisation of M. malabathricum especially in terms of cellulose materials. Thus this study aims to determine the chemical composition of M. malabathricum through its leaves and branches using the Technical Association of the Pulp and Paper Industry methods. Fourier transform infrared (FTIR) spectroscopy thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) were used to characterise the extracted cellulose. The cellulose content extracted from the branches and leaves were 47.8 (w/w) and 36.5 (w/w) respectively. Results from the FTIR analysis confirmed that the peaks of extracted cellulose from leaves and branches have approximately the same pattern as commercial cellulose. TGA thermograms showed that the thermal degradation of cellulose obtained from the branches and leaves occurs around 350C and for DSC thermograms the exothermic peak was observed at 330C. Both results are similar to the decomposition temperatures of commercial cellulose. The findings suggested that M. malabathricum has high potential in terms of being a source for plant-based cellulose for consumption and an alternative to conventional and/or synthetic cellulose in the market.

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Abstract

Melastoma malabathricum L. (M. malabathricum) or known locally as senduduk� is a dispersed shrub that can be found growing wildly and abundantly in nature. However there have been limited studies on the chemical composition and utilisation of M. malabathricum especially in terms of cellulose materials. Thus this study aims to determine the chemical composition of M. malabathricum through its leaves and branches using the Technical Association of the Pulp and Paper Industry methods. Fourier transform infrared (FTIR) spectroscopy thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) were used to characterise the extracted cellulose. The cellulose content extracted from the branches and leaves were 47.8 (w/w) and 36.5 (w/w) respectively. Results from the FTIR analysis confirmed that the peaks of extracted cellulose from leaves and branches have approximately the same pattern as commercial cellulose. TGA thermograms showed that the thermal degradation of cellulose obtained from the branches and leaves occurs around 350C and for DSC thermograms the exothermic peak was observed at 330C. Both results are similar to the decomposition temperatures of commercial cellulose. The findings suggested that M. malabathricum has high potential in terms of being a source for plant-based cellulose for consumption and an alternative to conventional and/or synthetic cellulose in the market.

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Item Type:	Article
AGROVOC Term:	Melastomataceae
AGROVOC Term:	Leaves
AGROVOC Term:	Branches
AGROVOC Term:	Thermal analysis
AGROVOC Term:	Chemical composition
AGROVOC Term:	Thermogravimetric analysis
AGROVOC Term:	Cellulose
AGROVOC Term:	Thermal properties
AGROVOC Term:	Bioproducts
Depositing User:	Mr. AFANDI ABDUL MALEK
Last Modified:	24 Apr 2025 00:55
URI:	http://webagris.upm.edu.my/id/eprint/10741

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