Extraction and Characterization of Pectin from Lemon Waste for Commercial Applications

Authors : Ketema BEYECH HUNDİE, Desalegn ABDİSSA

Pages : 1111-1120

Doi:10.18596/jotcsa.901973

View : 6 | Download : 6

Publication Date : 2021-11-30

Article Type : Research Paper

Abstract :The objective of this paper was preliminary to extract and characterization of purified pectin from lemon wastes. Dry lemon waste was extracted applying citric acid solvent or water at various concentrations under a similar condition insert ignore into journalissuearticles values(85 ºC for 4 h);. It was found that the highest yield of pectin insert ignore into journalissuearticles values(20.8% dry basis); was achieved using hot water extraction with an esterification degree of 47.8%. It contained 63.2 ± 0.74% galacturonic acid, followed by 17.4 ± 0.76% total sugar. The monosaccharides found in pectin were arabinose insert ignore into journalissuearticles values(2.7 ± 0.20%);, galactose insert ignore into journalissuearticles values(2.3 ± 0.01%);, glucose insert ignore into journalissuearticles values(1.4 ± 0.09%);, mannose insert ignore into journalissuearticles values(0.4 ± 0.01%);, fructose insert ignore into journalissuearticles values(0.4 ± 0.05%);, and xylose insert ignore into journalissuearticles values(0.1 ± 0.01%);. The found pectin had a high atomic weight of 2060 kDa with a wide polydispersity index of 4.41, decided by high-Performance Size Exclusion Chromatography insert ignore into journalissuearticles values(HPSEC);. The extricated lemon waste pectin was grouped into low methoxyl pectin, depends on the methoxyl content and degree of esterification affirmed by Fourier transform infrared spectroscopy insert ignore into journalissuearticles values(FT-IR); and rheological properties. In conclusion, the discoveries of the study show that lemon waste can be investigated as a promising elective for the commercial manufacturing of pectin.
Keywords : Lemon waste, Pectin, Composition, Molecular weight