Exploring the nature of nano bacterial cellulose-poly(vinyl alcohol) as a composite packaging material

Next Nanotechnology Pub Date : 2024-09-03 DOI:10.1016/j.nxnano.2024.100099

Keerthi Kumari Haralakal , Ashwini M. , Geeta D. Goudar , Venugopal C. K , Sharanappa Achappa , Bipin S. Chikkatti , Nagaraj R. Banapurmath , Ashok M. Sajjan

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Abstract

Nano bacterial cellulose (NBC) being a biopolymer has unique physical and chemical properties with high biocompatibility. It is pure cellulose with nanometer size, produced by certain group of bacteria. Its properties can be further improved by combining with poly(vinyl alcohol) (PVA), which is a fascinating polymer soluble in water and biocompatible. Composite films of PVA and NBC were prepared by solution casting method. Composite films of PVA-NBC (0,1,2,3,4,5 %) were tested for major packaging properties like water vapor transmission rate, swelling measurement, film solubility and moisture retention capacity. Among all concentration films, film with 5 % NBC- PVA showed better results for all the tests. Films were also checked for antimicrobial properties against spoilage-causing bacteria and fungi. Further, the films were applied to study the shelf life in the Mitli Banana (Musa sp.) followed by Organoleptic evaluation during storage. Results showed that the banana packed with 5 % NBC- PVA film has retained maximum acceptable characters than other packages.

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探索纳米细菌纤维素-聚乙烯醇复合包装材料的性质

纳米细菌纤维素（NBC）是一种生物聚合物，具有独特的物理和化学特性，生物相容性高。它是由特定细菌群产生的纳米级纯纤维素。聚乙烯醇（PVA）是一种可溶于水且具有生物相容性的迷人聚合物，通过与聚乙烯醇（PVA）结合可进一步改善其特性。采用溶液浇铸法制备了 PVA 和 NBC 的复合薄膜。测试了 PVA-NBC 复合薄膜（0,1,2,3,4,5 %）的主要包装特性，如水蒸气透过率、膨胀测量、薄膜溶解度和保湿能力。在所有浓度的薄膜中，5% NBC- PVA 薄膜在所有测试中都表现出更好的结果。此外，还检测了薄膜对引起腐败的细菌和真菌的抗菌特性。此外，薄膜还用于研究米特里香蕉（Musa sp.）的保质期，并在贮藏期间进行感官评估。结果表明，与其他包装相比，使用 5 % NBC- PVA 薄膜包装的香蕉保留了最多的可接受特性。

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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Next Nanotechnology

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