Pectin and cellulose extraction from passion fruit peel waste

Main Article Content

Thi Tuyet Mai Phan Thi Sen Ngo

Abstract

Pectin and cellulose were successfully extracted from passion fruit peel waste. The maximum pectin yield of the process was 12.60% at pH=2 for 1.5 h. The pure cellulose obtained from the passion fruit peel waste was prepared by refluxing of the passion fruit peel powder with 1 M NaOH and 1.25 M HNO3 solutions at 90°C for 1 h and 1.5 h, respectively. The passion fruit peel cellulose was converted to carboxymethyl cellulose (CMC) by etherification. The pure cellulose was soaked in a mixed solution of isopropyl alcohol and NaOH for 1.5 h. After that, it was reacted with cholroacetic acid at 70°C for 1.5 h. The optimum conditions for carboxymethylation were 5 g cellulose, 2.0 g cholroacetic acid, and 15 ml 20%w/v NaOH. The optimised product had a degree of substitution (DS) of 0.78 and was used as constituent in a biopolymer. 

DOI: https://doi.org/10.31276/VJSTE.62(1).32-37

Article Details

How to Cite
PHAN, Thi Tuyet Mai; NGO, Thi Sen. Pectin and cellulose extraction from passion fruit peel waste. Vietnam Journal of Science, Technology and Engineering, [S.l.], v. 62, n. 1, p. 32-37, mar. 2020. ISSN 2525-2461. Available at: <https://vietnamscience.vjst.vn/index.php/VJSTE/article/view/292>. Date accessed: 05 aug. 2020.
Section
PHYSICAL SCIENCES