Eco-friendly bio-nanocomposites: incorporation of nano-cellulose from pineapple leaf waste into tissue paper

IF 4.9 2区工程技术 Q1 MATERIALS SCIENCE, PAPER & WOOD

Cellulose Pub Date : 2024-09-03 DOI:10.1007/s10570-024-06101-6

M. Sasikala, P. Magesan, K. I. Dhanalekshmi, M. J. Umapathy

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Abstract

A lot of attention has been paid to cellulose nanocrystals (CNCs) due to their wide availability with a great potential to replace synthetic materials. The formation of CNCs from agricultural waste has numerous positive economic and environmental consequences. Cellulose nanocrystals were synthesized from pineapple leaf by acid hydrolysis and characterized by FT-IR, XRD, SEM, TEM, etc. Different concentrations of cellulose nanocrystals (1%, 3%, and 5% w/w) reinforced gelatin-based bio-nano composite was coated on tissue paper. The optimized fibrogenic solution was infused with three different plant leaf extracts (Banana leaf extract, Mantharai leaf extract, and Lotus leaf extract) used as an antimicrobial agent for hygienic tissue paper. Thickness, grammage, and bulk density analysis show the efficiency of the coating formation. The coated tissue paper shows increased mechanical properties and air permeability but significantly reduced water vapour permeability. Antimicrobial efficacy showed improved activity against Gram-positive bacteria Staphylococcus aureus (ATCC-2913), Gram-negative bacteria Escherichia coli (ATCC-27853), and fungi Candida glabrata (NCYC 388). These results reveal the potential of cellulose materials to serve as accessible platforms for anti-infective or self-sterilizing materials against both bacteria and fungi.

Graphical abstract

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生态友好型生物纳米复合材料：将菠萝叶废料中的纳米纤维素融入纸巾中

纤维素纳米晶体（CNCs）因其广泛的可用性和替代合成材料的巨大潜力而备受关注。从农业废弃物中生成 CNC 有许多积极的经济和环境影响。本研究以菠萝叶为原料，通过酸水解法合成了纤维素纳米晶体，并利用傅立叶变换红外光谱、X射线衍射、扫描电镜、电子显微镜等对其进行了表征。将不同浓度（1%、3% 和 5% w/w）的纤维素纳米晶体增强明胶基生物纳米复合材料涂布在纸巾上。优化后的纤维原溶液注入了三种不同的植物叶提取物（香蕉叶提取物、曼陀罗叶提取物和莲花叶提取物），用作卫生纸的抗菌剂。厚度、克重和体积密度分析表明了涂层形成的效率。涂布后的卫生纸机械性能和透气性都有所提高，但水蒸气渗透性明显降低。抗菌效果显示，对革兰氏阳性菌金黄色葡萄球菌（ATCC-2913）、革兰氏阴性菌大肠杆菌（ATCC-27853）和真菌白色念珠菌（NCYC 388）的活性都有所提高。这些结果揭示了纤维素材料作为抗感染或自消毒材料的可访问平台的潜力。

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来源期刊

Cellulose 工程技术-材料科学：纺织

CiteScore

10.10

自引率

10.50%

发文量

580

审稿时长

3-8 weeks

期刊介绍： Cellulose is an international journal devoted to the dissemination of research and scientific and technological progress in the field of cellulose and related naturally occurring polymers. The journal is concerned with the pure and applied science of cellulose and related materials, and also with the development of relevant new technologies. This includes the chemistry, biochemistry, physics and materials science of cellulose and its sources, including wood and other biomass resources, and their derivatives. Coverage extends to the conversion of these polymers and resources into manufactured goods, such as pulp, paper, textiles, and manufactured as well natural fibers, and to the chemistry of materials used in their processing. Cellulose publishes review articles, research papers, and technical notes.