Pre-treatment effect on the structure of bacterial cellulose from Nata de Coco (Acetobacter xylinum)

IF 1.1 4区工程技术 Q4 POLYMER SCIENCE

Polimery Pub Date : 2022-03-28 DOI:10.14314/polimery.2022.3.3

R. Rusdi, N. A. Halim, M. N. Norizan, Z. Abidin, N. Abdullah, Fadhlina Che Ros, Nurazlin Ahmad, A. Azmi

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引用次数: 6

Abstract

This paper presents a structural analysis of various methods to produce bacterial cellulose (BC) from Nata de Coco (Acetobacter xyllinum). BC sheet, BC chem and BC mech powder were successfully prepared using oven drying, chemical and mechanical treatment. The X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, and field emission scanning electron microscopy (FESEM) were used to analyze the structure of prepared BC. The structure of bacterial cellulose was compared with the structure of commercial microcrystalline cellulose (MCC) and cotton fabric. The XRD results showed that the BC sheet sample had the highest degree of crystallinity (81.76%) compared to cotton cellulose (75.73%). The crystallite size of cotton was larger than the BC sheet, with the value of 6.83 ηm and 4.55 ηm, respectively. The peaks in the FTIR spectra of all BC were comparable to the commercial MCC and cotton fabrics. FESEM images showed that the prepared BC sheet, BC mech, and BC chem had an almost similar structure like commercial MCC and cotton fabric. It was concluded that simple preparation of BC could be implemented and used for further BC preparation as reinforcement in polymer composites, especially in food packaging.

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预处理对椰树醋酸杆菌细菌纤维素结构的影响

本文对以木醋杆菌为原料生产细菌纤维素的各种方法进行了结构分析。采用烘箱干燥、化学和机械处理等方法成功制备了BC片材、BC化学和BC机械粉末。利用X射线衍射（XRD）、傅立叶变换红外光谱（FTIR）和场发射扫描电子显微镜（FESEM）对制备的BC的结构进行了分析。将细菌纤维素的结构与商品微晶纤维素（MCC）和棉布的结构进行了比较。XRD结果表明，与棉纤维素（75.73%）相比，BC片样品的结晶度最高（81.76%）。棉花的晶粒尺寸大于BC片，分别为6.83ηm和4.55ηm。所有BC的FTIR光谱中的峰与商业MCC和棉布相当。FESEM图像显示，制备的BC片材、BC mech和BC chem具有与商业MCC和棉布几乎相似的结构。结果表明，简单的BC制备方法可以在聚合物复合材料中，特别是在食品包装中，作为增强材料，用于进一步制备BC。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Polimery Materials Science-Polymers and Plastics

CiteScore

2.90

自引率

6.20%

发文量

审稿时长

1 months

期刊介绍： The "Polimery" journal, of international circulation, is publishing peerreviewed scientific and technical research papers covering polymer science and technology in the field of polymers, rubbers, chemical fibres and paints. The range of topics covered are raw materials, polymer synthesis, processing and applications of polymers. Apart from scientific and technical research papers the monthly includes technical and commercial information such as reports from fairs and exhibitions as well as home, world and technical news. “Polimery "- an international journal covering the following topics: polymers, rubber, chemical fibres and paints. The Journal is addressed to scientists, managers and engineering staff of universities, Polish Academy of Sciences, R&D institutions, industry, specializing in polymer chemistry, physical chemistry, technology and processing. “Polimery” publishes original, reviewed research, scientific and technology papers in the field of polymer synthesis, analysis, technology and modification, processing, properties, applications and recycling.