Impact of different NaOH treatments on biocellulose properties from coconut water fermented by Lentilactobacillus parafarraginis

IF 0.5 Q4 EDUCATION, SCIENTIFIC DISCIPLINES

Pharmacy Education Pub Date : 2024-05-01 DOI:10.46542/pe.2024.243.7581

I. Y. Ningsih, M. A. Hidayat, T. Erawati, B. Kuswandi

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引用次数: 0

Abstract

Background: Biocellulose is a natural polymer produced by bacteria with distinct physicochemical properties, although it has a chemical composition identical to plant cellulose. Before use, biocellulose was purified by chemical treatment to increase its properties. Objective: The study aimed to evaluate biocellulose properties using NaOH solution as a purification agent. Method: After harvesting, all samples were purified using NaOH of 0.25 M (BC0.25), 0.5 M (BC0.5), and 1 M (BC1) and determined for their properties, such as mechanical strength, swelling degree, water vapour transmission, and moisture content. Analysis of scanning electron microscope (SEM) images and Fourier Transform Infrared Spectroscopy (FTIR) spectra were also performed for characterisation. Result: BC0.5 exhibited the highest tensile strength of 15.38±0.45 MPa and elongation at a break of 38.40±0.58%. BC1 had the highest swelling degree of 131.24±0.70%, water vapour transmission of 400.00±0.36 g/m2, and moisture content of 6.44±0.14%. Nevertheless, there were slight alterations in morphological structure and spectral peaks because of the high concentration of NaOH. Conclusion: The use of NaOH treatment of 0.5 M in biocellulose purification removed more contaminants and resulted in better properties than other concentrations.

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不同的 NaOH 处理对副扁豆乳杆菌发酵椰子汁生物纤维素特性的影响

背景：生物纤维素是一种由细菌产生的天然聚合物，虽然其化学成分与植物纤维素相同，但却具有独特的物理化学特性。在使用前，生物纤维素会通过化学处理进行提纯，以增加其特性：本研究旨在使用 NaOH 溶液作为纯化剂，评估生物纤维素的特性：收获后，使用 0.25 M（BC0.25）、0.5 M（BC0.5）和 1 M（BC1）的 NaOH 对所有样品进行纯化，并测定其特性，如机械强度、膨胀度、水蒸气透过率和含水量。此外，还对扫描电子显微镜（SEM）图像和傅立叶变换红外光谱（FTIR）进行了表征分析：BC0.5 的拉伸强度最高，为 15.38±0.45 兆帕，断裂伸长率为 38.40±0.58%。BC1 的膨胀度最高，为 131.24±0.70%，透湿率为 400.00±0.36 g/m2，含水率为 6.44±0.14%。尽管如此，由于 NaOH 浓度较高，形态结构和光谱峰值都有轻微变化：结论：在生物纤维素纯化过程中，使用 0.5 M 的 NaOH 处理比其他浓度的 NaOH 处理能去除更多的污染物，并获得更好的特性。

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来源期刊

Pharmacy Education EDUCATION, SCIENTIFIC DISCIPLINES-

CiteScore

0.80

自引率

20.00%

发文量

174

期刊介绍： Pharmacy Education journal provides a research, development and evaluation forum for communication between academic teachers, researchers and practitioners in professional and pharmacy education, with an emphasis on new and established teaching and learning methods, new curriculum and syllabus directions, educational outcomes, guidance on structuring courses and assessing achievement, and workforce development. It is a peer-reviewed online open access platform for the dissemination of new ideas in professional pharmacy education and workforce development. Pharmacy Education supports Open Access (OA): free, unrestricted online access to research outputs. Readers are able to access the Journal and individual published articles for free - there are no subscription fees or ''pay per view'' charges. Authors wishing to publish their work in Pharmacy Education do so without incurring any financial costs.