The Antibacterial and Aroma Finishing of Cotton Fabrics by Eucalyptus globulus Extract

ABSTRACT

Eucalyptus globulus bio extract was applied on woven cotton textiles for antibacterial and aroma finish. Molecular characterisation was done by using FTIR. Chemical groups responsible for antibacterial behaviour and the chemical structure of this plant were investigated through GCMS. Eucalyptus globulus treated fabric has greater colour depth (K/S) in comparison to original fabric. The mordanted fabrics were treated with Eucalyptus globulus solution and evaluated for antibacterial activity against Escherichia.coli (Gram negative bacteria) and Staphylococcus aureus (Gram-positive bacteria) by Agar Well Diffusion method. Zone of inhibition of 16 mm to 26 mm was measured for the different treated fabrics against Escherichia.coli (Gram negative bacteria) in comparison to 18 mm to 32 mm for Staphylococcus aureus (Gram-positive bacteria). Zone of inhibition in treated fabrics reveal that the antibacterial effect is more potent against gram positive bacteria. There is decrease in zone of inhibition for both gram negative and gram positive bacteria after 20 washing cycles. However, Eucalyptus globulus treated fabric can retain 56.2% to 88.5% of its initial antibacterial property even after 20 washing cycles. Cotton fabrics also generate fragrance after treatment. Fragrance intensity ratings of 200 respondents have been documented and evaluated.

摘要

蓝桉生物提取物用于棉织物的抗菌和芳香整理. 通过FTIR进行分子表征. 通过GCMS研究了影响该植物抗菌行为和化学结构的化学基团. 与原始织物相比, 蓝桉处理的织物具有更大的颜色深度(K/S). 用蓝桉溶液处理媒染剂织物, 并评估其对大肠杆菌的抗菌活性。通过琼脂井扩散法检测大肠杆菌 (革兰氏阴性细菌) 和金黄色葡萄球菌 (革兰阳性细菌). 测定了不同处理织物对大肠杆菌的抑制区为16mm至26mm. 与金黄色葡萄球菌 (革兰氏阳性细菌) 的18mM至32mM相比. 经处理的织物中的抑制区表明, 抗菌效果对革兰氏阳性细菌更有效. 在20次洗涤循环后, 革兰氏阴性菌和革兰氏阳性菌的抑制区均减小. 然而, 蓝桉处理的织物即使在20次洗涤循环后仍能保持其初始抗菌性能的56.2%至88.5%. 棉织物在处理后也会产生香味. 记录并评估了200名受访者的香味强度评级.

KEYWORDS:

• Eucalyptus globulus
• bio-Extract
• antibacterial
• Escherichia.Coli
• Staphylococcus aureus
• fragrance

关键词:

• 蓝桉
• 生物提取物
• 抗菌
• 大肠杆菌. 大肠杆菌
• 金黄色葡萄球菌
• 芬芳

Disclosure statement

No potential conflict of interest was reported by the author(s).

Supplementary material

Supplemental data for this article can be accessed online at https://doi.org/10.1080/15440478.2022.2107139.