ISSN 2410-7751 (Print)
ISSN 2410-776X (Online)
Biotechnologia Acta Т. 17, No. 1 , 2024
P.55-61 , Bibliography 12, Engl.
UDC:: 662.754:547.27
https;//doi.org/10.15407/biotech17.01.055
Full text: (PDF, in English)
Eiman M. Eltyeb, Nawal M. Suleman
University of Khartoum, Omdurman, Sudan
The study was purposeeed to investigate the use of the direct heterogeneous esterification method of extracted fibers from Leptadenia pyrotechnica khimp (Leptadenia pyrotechnica) and date palm tree (Phoenix dactylifera L.) using adipic and citric acids. Homogeneous esterification leads to the degradation of lignocellulosic material, making it impossible to obtain a pure ester of extracted crude fiber by this method.
Methods. The esterification reaction was carried out from three samples of the plant Leptadenia pyrotechnics, Phoenix dactylifera L. leaf, and fiber) were extracted as crude fibers and used in the heterogeneous esterification process. The total esterified fibers were six esters (each sample esterified with citric and adipic acid). The study employed ordinary laboratory equipment and Fourier Transformation Infrared (FTIR) spectroscopy.
The results showed that the ester contents were 21.6% to 28%. The degree of substitutions was in the range of 0.38 to 0.57.
Conclusion. This process was simple and effective in producing esterified extracted plant fibers with a desirable degree of substitution.
Key words: crude fibers, heterogeneous, esterification, Leptadenia pyrotechnica, Phoenix dactylifera L., adipic acid, citric acid..
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