Comparative Evaluation of Analytical Techniques Used in Estimating Acetylation of Lignocellulosic Materials

Jude Onwuka; Imam Akeyede; Estella Jasper

doi:10.62050/ljsir2023.v1n1.265

Comparative Evaluation of Analytical Techniques Used in Estimating Acetylation of Lignocellulosic Materials

Authors

Jude C. Onwuka
emperor20062003@yahoo.com

Department of Science Laboratory Technology, Federal University of Lafia, PMB 146, Nasarawa State – Nigeria
https://orcid.org/0000-0003-2950-8273
Imam Akeyede
Department of Mathematics and Statistics, Federal University of Lafia, PMB 146, Nasarawa State – Nigeria
Enebi Estella Jasper
Department of Chemical Sciences, Dennis Osadebay University, Asaba, Delta State – Nigeria

Keywords:

Weight percent gain , degree of substitution , Box’s M , Multivariate analysis , Duncan analysis , Acetylation

Abstract

The techniques commonly used in estimating the extent of acetylation are based on the principle of substituting hydroxyl groups with acetyl groups. In this study, three lignocellulosic materials were modified using a solvent-free method of acetylation with NBS (N – bromosuccinimide) as a catalyst. The extent of modification of these materials was estimated using three techniques – weight percent gain (WPG), extent of acetylation (R), and degree of substitution (DS). Six (6) factors were considered in the acetylation of the lignocellulosic materials. Equality of variance – covariance matrices of the techniques across the factors in all the materials were tested with Box’s M test. The performance and response of the techniques to variation of the factors studied were compared statistically using multivariate analysis (MANOVA) and Duncan multiple range test. MANOVA results showed no statistical difference in the response of the techniques towards variation of the factors studied in acetylating these materials. However, it also showed that there was a significant difference in the performance of the techniques used in estimating the extent of acetylation. Duncan multiple range test analysis indicated that WPG performed best in estimating the extent of acetylation. Thus, any of the techniques can be used to estimate the extent of acetylation satisfactorily.

Dimensions

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Published

2023-10-31

How to Cite

Comparative Evaluation of Analytical Techniques Used in Estimating Acetylation of Lignocellulosic Materials. (2023). Lafia Journal of Scientific and Industrial Research, 1(1 & 2), 12-17. https://doi.org/10.62050/ljsir2023.v1n1.265