THERMAL SCIENCE

International Scientific Journal

Qianwen Wang

,

Jumei Zhao

,

Weiqing Jiang

,

Chunqin Ma

,

Qihu Bu

,

Ni Qi

,

Yuankun Liu

,

Chunxia Wang

THERMAL EXTRACTION OF PECTIN FROM THE STEM BARK OF ECO-WOOD HIBISCUS AND ITS APPLICATION TO CASHMERE FABRICS

ABSTRACT
In this study, natural plant pectin was extracted from the stem bark of Hibiscus mutabilis and utilized to finish knitted cashmere fabrics. The performance differences between the fabrics before and after finishing were investigated. The results demonstrate that the extraction solution, comprising hibiscus stem bark tartaric acid at a pH of 2, extraction time of 90 minutes, and a material-liquid ratio of 1/30, yielded pectin at a yield of up to 13.24%. This yield is not as high as that of tartaric acid. Following the finishing of the knitted cashmere fabric with hibiscus pectin, a notable enhancement in the fabric's antibacterial and UV properties was observed. Following the application of a 7.5% hibiscus pectin solution, the transmission rate of UV light with a wavelength of less than 290 nm exhibited a tendency towards zero, while the ultraviolet protection factor value reached 43. Furthermore, the bacterial inhibition rate of Staphylococcus aureus was observed to reach 94.571%.
KEYWORDS
hibiscus sabdariffa, stem bark, pectin, knitted cashmere fabric, finishing, UV protection, antibacterial property
PAPER SUBMITTED: 2024-04-15
PAPER REVISED: 2024-05-30
PAPER ACCEPTED: 2024-05-30
PUBLISHED ONLINE: 2025-07-06
DOI REFERENCE: https://doi.org/10.2298/TSCI2503731W
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2025, VOLUME 29, ISSUE Issue 3, PAGES [1731 - 1738]
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Thermal extraction of pectin from the stem bark of eco-wood hibiscus and its application to cashmere fabrics

2025 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence