Development of antibacterial and halochromic textiles by modification of emodin from Japanese knotweed

Avbelj, Martina (author), Horvat Zagorec, Monika (author), Petković, Hrvoje (author), Gorjanc, Marija (author), Iskra, Jernej (author)

Emodin is a natural product with a wide range of biological activities, including antibacterial and antiviral activity against the human coronavirus NL63. Our aim was to develop antimicrobial textiles using the natural dye emodin and its derivatives and to investigate how chemical modification of emodin affects the binding properties to textiles and the antibacterial properties of the dyed textiles. Emodin was first modified by introducing different functional groups(NO$_2$, SO$_3$H, Br, and Cl) into the aromatic ring to obtain products with different colors. Products were used to dye various types of textiles without additional mordants. Wool and polyamide exhibited intense dye uptake, whereas cottonand polyester showed weaker affinity to emodin derivatives. The colors of dyedwool and polyamide varied, including light pink, red, violet, and almost blacktones. The degree of washing fastness, pH sensitivity, and antibacterial activity of treated fabrics were also evaluated. The dyed textiles showed significant antibacterial activity against Gram-positive Staphylococcus aureus. Emodin is also present in Japanese knotweed, which is one of the most invasive alien plant species in the world and poses a major ecological and environmental problem in Europe. Therefore, this source may present environmentally friendly and sustainable source of natural dyeing agent.

• Language: English
• Keywords: anthraquinone dye, wool, halochromism, antibacterial activity, MSSA, antibacterial textiles
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: BF - Biotechnical Faculty; FKKT - Faculty of Chemistry and Chemical Technology; NTF - Faculty of Natural Sciences and Engineering
• Publication status: Published
• Publication version: Version of Record
• Year: 2025
• Number of pages: 20 str.
• Numbering: Vol. 22, no. 1, art. 2445579
• PID: 20.500.12556/RUL-166769
• UDC: 547.9:677:579.6
• ISSN on article: 1544-046X
• DOI: 10.1080/15440478.2024.2445579
• COBISS.SI-ID: 221365507

Note

KLJUČNE BESEDE: emodin, japonski dresnik, naravna barvila, tekstil, volna, protimikrobna aktivnost, halokromizem

• Publication date in RUL: 24.01.2025

Record is a part of a journal

• Title: Journal of natural fibers
• Publisher: Taylor & Francis
• ISSN: 1544-046X
• COBISS.SI-ID: 521905689

Licences

• License: CC BY-NC 4.0, Creative Commons Attribution-NonCommercial 4.0 International
• Link: http://creativecommons.org/licenses/by-nc/4.0/
• Description: A creative commons license that bans commercial use, but the users don’t have to license their derivative works on the same terms.

Secondary language

• Language: Chinese

Abstract

大黄素是一种天然产物，具有广泛的生物活性, 包括对人类冠状病毒NL63 的抗菌和抗病毒活性我们的目的是利用天然染料大黄素及其衍生物开发抗 菌纺织品，并研究大黄素的化学改性如何影响纺织品的结合性能和染色纺 织品的抗菌性能（NO2、SO3H、Br和Cl) 进行改性，得到不同颜色的产物. 产品用于在不添加媒染剂的情况下对各种类型的纺织品进行染色. 羊毛和 聚酰胺表现出强烈的染料吸收，而棉花和聚酯对大黄素衍生物的亲和力较 弱. 染色羊毛和聚酰胺的颜色各不相同，包括浅粉色、红色、紫色和近乎 黑色的色调. 还评估了处理织物的洗涤牢度、pH 敏感性和抗菌活性. 染色 纺织品对革兰氏阳性金黄色葡萄球菌显示出显著的抗菌活性. 大黄素也存 在于日本虎杖中，虎杖是世界上入侵最严重的外来植物物种之一，在欧洲 造成了重大的生态和环境问题. 因此，这种来源可能是环保和可持续的天 然染色剂来源.

• Keywords: 关键词, 羊毛, 晕染症, 抗菌 活性, 抗菌纺织品