Extraction of Pectic Acid from Citrus Fruit Peels and its Application as Textile Printing Thickener

Volume 1 - Issue 3

Lami Amanuel*

Received: January 18, 2018;   Published: January 29, 2018

DOI: 10.32474/LTTFD.2018.01.000111

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Abstract

Extraction of pectic acid by acid hydrolysis from citrus fruit peels and its conversion in to textile printing paste thickener in order to use it as an alternative substitute of sodium alginate thickener in reactive printing was studied in this research. Printing with the alternative thickener, sodium pectate, printed fabric characteristics; color yield, color brightness and wash fastness were improved. Pectic acid is extracted from the identified citrus fruit peels i.e. orange peel, lemon peel and bitter orange peels. Extraction time, type of solvent and extraction pH was standardized based on pectin yield obtained. The research found environment friendly extraction of pectic acid by sodium carbonate instead of acid hydrolysis with HCL or H₂SO⁴.

Keywords: Pectic acid; Sodium alginate; Sodium pectate; Printing Thickener; Acid hydrolysis; Wash fastness, Color yield

Abstract| Introduction| Materials and Methods| Results and Discussion| Conclusion| References|